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notes.aimodels.fyi

Search, filter, and sort through a vast database of AI models. Find the right one for your project.

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What is AIModels.fyi?

AIModels.fyi is an AI-focused publication and model-discovery site. Its stated purpose is to help you "search, filter, and sort through a vast database of AI models" to find the right one for a project, and its homepage mixes that directory function with editorial content. The page is organized into sections labeled Latest, Plain English Papers, Guides, Build In Public, and News.

What you'll find there

  • Model discovery: The site positions itself as a searchable, filterable database of AI models, aimed at people choosing a model for a build rather than browsing research for its own sake.
  • Plain English Papers: Short, accessible write-ups of research papers. Examples on the page include a piece on Netflix's VOID video-editing work, "Simplifying transformer blocks," and "SmolDocling: An Ultra-Compact VLM for Document Understanding."
  • Guides: Practical, task-oriented tutorials, such as turning audio into a waveform, improving semantic search with hypothetical document embeddings, AI-driven categorization, and face-swap or face-stylization walkthroughs.
  • Build In Public: Case-study style posts about shipping AI products, including an interior-design app example.
  • News and Latest: A dated feed of shorter items, such as "The prompt isn't hiding inside the image" and commentary on Meta trading "its biggest community asset for a commerce engine."

Who it suits

The mix points to two overlapping audiences. Developers and product builders evaluating models will get the most from the database and the Guides, which are written around concrete tasks. Readers who want research explained without jargon are served by Plain English Papers. Someone deciding between two models for, say, document parsing would start with the SmolDocling write-up and then use the search and filter tools to compare alternatives.

Trade-offs to expect

Editorial breadth is a strength but also a limitation: content spans tutorials, opinion, and paper summaries, so you should check whether a given piece is a how-to or commentary before relying on it. Posts are individually dated, and some visible items are older than others, so confirm recency for anything fast-moving. The site also signals a paid subscription option, so expect some content or features to sit behind it.

Next step: if you have a specific task in mind, open the model database first and filter by your use case, then read the matching Plain English Papers entry to understand the model's limits before committing. For broader model coverage, Hugging Face is a useful complement.

How do I find the right AI model for my project using AIModels.fyi?

Start with the task, not the model name. AIModels.fyi is positioned as a searchable, filterable and sortable database of AI models, so the fastest route is to describe your project in model terms—input type (text, image, audio, document), output you need, deployment constraints, and budget—then use filters to narrow the list. Its editorial sections are the second route: "Plain English Papers" and "Guides" translate specific models and techniques into practical explanations, which helps when you are choosing between approaches rather than hunting for a known model.

A workable selection routine

  1. Write a one-line spec. Example: "Extract tables from scanned PDF invoices, run locally, modest hardware." This turns into filters and search terms.
  2. Filter broadly, then read narrowly. Use the database to shortlist candidates by modality and task; open only the entries that match your spec.
  3. Check the explanation, not just the label. A guide or plain-English write-up tells you what problem the model was built for—useful for spotting mismatches a keyword search hides.
  4. Test on your own data. Run two or three shortlisted models on a small sample of real inputs before committing; benchmark scores rarely reflect your documents, images or audio.
  5. Weigh the trade-offs explicitly. Compare accuracy on your sample, inference cost, hardware needs, licence terms and how actively the model is maintained.

Matching the site's sections to your need

Your situation Most useful part Why
You know the task but not the model Model search with filters Fast shortlist across many models
You are comparing techniques Plain English Papers Explains the idea behind a model in accessible terms
You want a step-by-step build Guides Practical walkthroughs, e.g. audio-to-waveform or semantic search with hypothetical document embeddings
You want to see real applications Build In Public Case-style write-ups of AI products and how they were made

For a concrete example: if you are building a document Q&A tool, start with the semantic search guide on hypothetical document embeddings, then shortlist document-understanding models such as the compact vision-language approach covered in the SmolDocling write-up, and test both on a sample of your own PDFs.

As a next step, also check model cards and licences at the source—for instance on Hugging Face—before you commit, since deployment terms and hardware requirements decide as much as raw quality.

What are Plain English Papers on AIModels.fyi and who are they for?

Plain English Papers on AIModels.fyi are short, jargon-light write-ups of individual AI research papers, aimed at readers who want the substance of a paper without reading the full technical text. They sit alongside the site's other sections—Guides, Build In Public, News—and each entry is tied to a specific paper rather than being a general tutorial.

What the section covers

The pieces translate a paper's central idea into a plain summary, usually with a one-line takeaway. Examples from the page show the pattern: a piece on Netflix's VOID frames video editing as "causal simulation rather than a pixel-patching job," explaining that this eliminates "ghost" physics from edited scenes; others cover simplifying transformer blocks, SmolDocling as an "ultra-compact VLM for document understanding," and how "creating artificial doubt significantly improves AI math accuracy." Topics range across vision, language models, document AI and reasoning, so the section reads as a running digest of recent research rather than a single course.

Who it suits

  • Product and engineering leads deciding whether a technique is worth a deeper look before assigning someone to read the paper.
  • Developers and data scientists who want the gist of a method—what problem it solves and why it works—before committing hours to the PDF.
  • Technical writers, founders and analysts tracking AI progress who need accurate summaries they can act on or pass along.
  • Students and career-switchers building vocabulary around current methods without a research background.

It suits less well anyone who needs full implementation detail, benchmark tables or reproducibility notes; for that, go to the original paper. The plain summary is a filter, not a substitute.

How to use it

Pick the paper closest to your problem, read the summary for the core claim, then decide whether to open the source paper. A practical test: if the summary names a technique you could plausibly try this week, read the paper; if it only changes how you think about the field, note it and move on. For hands-on walkthroughs rather than paper digests, the site's Guides section is the better starting point—for instance, its Audio-To-Waveform guide turns spoken audio or music into a waveform with a simple model. Readers who want the underlying models themselves can browse AIModels.fyi.

Do the guides on AIModels.fyi include step-by-step tutorials for building AI apps?

Yes, but selectively rather than as a full curriculum. The guides section mixes hands-on build tutorials with conceptual explainers, so step-by-step material exists alongside posts that are more "understand this idea" than "follow these steps."

What the guides cover

The page evidence shows a practical, project-oriented streak in the guides section:

  • Build-along app tutorials — "Build Your Own Epik-inspired App: Transform Selfies into '90s Yearbook Photos with Node.js and AI" and "Swap Faces Seamlessly with the Faceswap Model" are clearly step-oriented, with a named stack and a concrete output.
  • Model-focused how-tos — "Turning sound to sight with the Audio-To-Waveform AI Model" is framed as turning spoken audio or music into a waveform using a simple model, which reads as a walkthrough of a single technique.
  • Technique guides — "How to improve your semantic search with hypothetical document embeddings" and "From chaos to clarity with AI-driven categorization" are method-level: useful steps, but aimed at a technique rather than a finished app.
  • Strategy pieces — "From AI Models to AI Products: Turning Intelligence into Impact" is about turning models into products, not a code tutorial.

There is also a "Plain English Papers" section that summarizes research (for example, a piece on Netflix's VOID video-editing model and one on simplifying transformer blocks). Those help you understand a method before you implement it, but they are not build instructions.

How to decide if it fits your need

Your goal Where to look Expectation
Ship a small app this weekend App-build guides (yearbook photos, faceswap) Concrete steps, but tied to specific models and a Node.js-style stack
Add one capability to an existing project Model how-tos (audio-to-waveform, embeddings) Technique-level steps you adapt yourself
Understand a paper before coding Plain English Papers Explanation, not a tutorial
Plan a product Strategy and Build In Public posts Framing and lessons, not instructions

A practical next step: open the guides index and skim the titles for a stack you already use. If you work in Node.js, the yearbook-photo tutorial is the closest match to a true end-to-end build; if you work in Python, treat the model how-tos as adaptable recipes and expect to translate the code. For broader model discovery alongside these guides, Hugging Face hosts the model cards and demos that tutorials like these typically depend on, which is useful when a guide references a model you want to inspect first.

What does the Build In Public section on AIModels.fyi cover?

The Build In Public section covers first-hand accounts of building and running AI-powered projects, rather than model announcements or research summaries. From the page evidence, it mixes project case studies with behind-the-scenes reflections: "Transforming Spaces with Artificial Intelligence" looks at how sites such as Arlington Avenue use AI-powered interior design, while "Different now" reads as a personal update on how the author's work or thinking has changed. It also includes community-facing posts, such as an invitation to submit your AI tool to the site, and a practical guide on improving semantic search with hypothetical document embeddings.

What to expect

  • Case studies of real products: how a specific site or app applies AI, with the design and product decisions behind it.
  • Reflective, informal posts: short updates on the builder's own process and lessons.
  • Calls to participate: invitations for tool makers to submit their work to the directory.
  • Practical technique write-ups: implementation-focused guides that sit alongside the case studies.

Who it suits

Indie builders and small product teams will get the most from it, since the section reads as a working notebook rather than a tutorial series. If you want to see how others have turned a model into a shipped feature, start with the interior-design case study; if you are preparing your own launch, the submission post shows how the site's directory works. For broader model discovery, the main directory at AIModels.fyi is the more direct route.

Does AIModels.fyi require a subscription to access its content?

No, AIModels.fyi does not appear to require a subscription to access its content. The site presents its articles, paper write-ups, and guides as openly readable pages, and the listed sections—Latest, Plain English Papers, Guides, Build In Public, and News—are shown as regular browsing areas rather than gated content. A subscription option exists (billing runs through Stripe), but nothing in the site's presentation indicates it is needed to read the material.

Practical reading

  • Casual readers can browse the latest posts and plain-English paper summaries without signing up.
  • Builders can follow the guides, such as the Audio-To-Waveform walkthrough or the semantic search piece, as standalone tutorials.
  • Subscribers likely get extras—updates, submissions, or community features—rather than access to the core writing.

A useful next step

If you want to track new model write-ups, start with the Plain English Papers section for summaries, then use the Guides section when you need implementation steps. Check whether any specific feature you want—such as submitting your own tool—sits behind the subscription before committing.

For broader model discovery, compare with Hugging Face for model cards and Papers with Code for paper-to-code links.

Related questions

More questions →
How to Submit Your AI Tool to AIModels.fyi

AIModels.fyi has published an open invitation for builders to submit their AI tools to the site, announced in a "Build In Public" post titled "You're invited to submit your AI tool to AIModels.fyi" (dated Mar 19, 2024). To submit, start from that post in the Build In Public section of notes.aimodels.fyi — it is the site's stated entry point for getting a tool considered for listing. The site does not publish the exact submission form fields or review timeline in the material available here, so treat the post itself as the source of the current requirements before you prepare anything.

Where to Find the Submission Invitation

The invitation lives in the Build In Public section of the site, alongside other behind-the-scenes posts such as "Transforming Spaces with Artificial Intelligence" and "Different now." The site's navigation lists these sections:

Section What it contains
Latest Recent posts across topics
Plain English Papers Paper summaries in accessible language
Guides Step-by-step tutorials (e.g., Audio-To-Waveform, Faceswap)
Build In Public Site and builder updates, including the submission invitation
News News posts

Open Build In Public, then select the post "You're invited to submit your AI tool to AIModels.fyi." That post is where the site explains what it wants from submitters.

What to Prepare Before You Submit

Because the post is the authoritative source, read it first and follow whatever it asks for. In the meantime, you can get ahead by assembling the material a model directory typically needs — and that AIModels.fyi's own framing suggests:

  • A clear name and one-line description of what your tool does, in plain English. The site's editorial style favors plain-language explanations (see its "Plain English Papers" section).
  • The problem it solves and who it's for. The site's stated purpose is helping people "find the right one for your project," so describe the project types your tool fits.
  • A working link to the tool or its documentation.
  • Any notable capability or result worth highlighting — for example, a benchmark, a demo output, or a use case writeup.

If your tool has a public writeup or tutorial, that maps well onto the site's existing Guides format, which covers concrete tasks like turning audio into a waveform or swapping faces with a specific model.

How the Review Likely Works

The material available does not describe an approval process, acceptance criteria, or response time. What is documented is that the site actively curates and publishes tool- and model-focused content, and that it explicitly invites submissions. A reasonable expectation, based on how the site is organized, is that accepted tools would appear in its searchable model database or be covered in a post — but confirm this with the site rather than assuming a listing is guaranteed.

Common Pitfalls

  • Submitting without reading the invitation post. The post is the only documented channel; skipping it means guessing at requirements.
  • Vague descriptions. The site's audience is looking for a model that fits a specific project. A description that names the task, the input, and the output is more useful than a slogan.
  • Assuming submission equals listing. No source here promises publication, so plan to follow up through whatever contact route the post provides.

If you want a model of the site's preferred depth, read one of its Guides (such as the Audio-To-Waveform tutorial) before writing your own description — it shows the level of concrete, step-level detail the editors tend to publish.

What Kind of Guides Does AIModels.fyi Publish?

AIModels.fyi publishes hands-on, model-specific tutorials and practical AI engineering guides rather than general news or opinion pieces. The Guides section focuses on showing readers how to use a particular model or technique to complete a concrete task—from converting audio into a waveform to swapping faces in images—alongside product-oriented pieces on turning models into usable applications. If you want step-by-step walkthroughs tied to specific AI models, this is the section to check; if you want research summaries, the Plain English Papers section is the better fit.

The main guide formats

Based on the published entries, the Guides section clusters into three recognizable types:

1. Model-specific how-to tutorials

These walk through using a named model for a defined output. Examples visible on the site include:

  • Audio-To-Waveform — turning spoken audio or music into a waveform using a simple AI model.
  • Faceswap — swapping faces seamlessly with the Faceswap model.
  • JoJoGAN — one-shot face stylization.
  • Stable Diffusion Img2Img — an introduction to image-to-image generation.

The pattern here is: pick one model, describe the task it solves, and show the reader how to get a result. These are the closest thing to copy-and-follow tutorials on the site.

2. Technique and method guides

These are less about a single model and more about a workflow or method you can apply across projects. Examples include:

  • Hypothetical document embeddings (HyDE) for improving semantic search.
  • AI-driven categorization — moving "from chaos to clarity."
  • Step-by-step reasoning applied to vision AI.

These guides explain a mechanism and then show how to apply it, which makes them useful when you already have a pipeline and want to improve one stage of it.

3. Product-building guides

A smaller set focuses on the jump from model to shipped product:

  • "From AI Models to AI Products: Turning Intelligence into Impact."
  • "Build Your Own Epik-inspired App" — transforming selfies into '90s yearbook photos with Node.js and AI.

These are aimed at readers who already know which model they want and need help wrapping it into an application.

How to choose which guide to read

Your goal Guide type to look for Example on the site
Use a specific model for the first time Model-specific how-to Audio-To-Waveform, Faceswap
Improve an existing search or categorization pipeline Technique guide Hypothetical document embeddings
Ship a model inside an app Product-building guide Epik-inspired yearbook app
Understand a paper, not build something (Not a guide) Plain English Papers section

What the guides are not

Two boundaries are worth setting before you dive in:

  • They are not research summaries. That content lives under Plain English Papers, which covers papers like Netflix's VOID video-editing work or SmolDocling. If you want to understand a paper's contribution, start there instead.
  • They are not a model directory. The site's core function is searching, filtering, and sorting a database of AI models. Guides sit alongside that directory as applied walkthroughs, not as replacements for it.

Practical note on scope and freshness

The Guides list mixes recent entries (April 2026) with older ones (2023), so coverage is not uniformly current—check the date on a guide before assuming it reflects the latest model versions or library APIs. The site also signals a subscription option, so some content or features may sit behind an account; the public listing itself does not state which guides, if any, require it.

If your task is "learn to run model X end to end," start with the model-specific tutorials. If your task is "make my existing system better," the technique guides are the more direct route.

What Is AIModels.fyi?

AIModels.fyi is a site for finding AI models to use in a project: it lets you search, filter, and sort through a large database of models. It also publishes editorial content in five sections — Latest, Plain English Papers, Guides, Build In Public, and News — so it works both as a model-discovery tool and as a source of practical AI writing. It is most useful if you already have a task in mind (image generation, document understanding, semantic search) and want to locate a model or read a walkthrough before committing.

What you can do on the site

Find a model for a specific task

The core function is narrowing a large model catalog down to candidates. The site describes itself as a way to "search, filter, and sort through a vast database of AI models" to "find the right one for your project." In practice, that means starting from your task constraints rather than browsing aimlessly.

A workable approach:

  1. Write down the task and its hard constraints (input type, output type, size or speed limits).
  2. Search on the task terms, then use filters to cut the list.
  3. Sort the remaining candidates by whatever matters most to you.
  4. Read the linked write-up, if one exists, before testing.

Expected result: a shortlist you can evaluate, not a single "best" answer — the site provides the catalog and filters, and the judgment about fit is yours.

Read up before you build

The editorial sections cover different needs:

Section What it offers When to use it
Latest Recent posts across topics Scanning what's new
Plain English Papers Summaries of research papers in accessible language Understanding a technique without reading the paper
Guides Step-by-step tutorials on using specific models Following along to build something
Build In Public Accounts of building AI products and tools Seeing how others turned models into products
News Industry and model news Tracking developments

Examples from the page show the range: a guide on turning spoken audio or music into a waveform with an Audio-To-Waveform model; a plain-English summary of Netflix's VOID, which treats object removal in video as a causal simulation rather than pixel patching to avoid "ghost" physics in edited scenes; and a guide on improving semantic search with hypothetical document embeddings.

How to get the most out of it

  • Match the section to your stage. If you are still choosing an approach, start with Plain English Papers; if you have picked a model and need to implement it, go to Guides.
  • Treat guides as starting points, not specifications. A guide shows one working path; check the model's own documentation for current inputs and limits before relying on it.
  • Use Build In Public for product-level lessons. These posts describe how sites and tools were assembled, which is useful for the gap between "a model works" and "a product ships."
  • Expect a mix of dates. The page lists items from 2023 through 2026, so check the date on any guide before following it — older tutorials may reference tooling that has since changed.

Limits worth knowing

The site is a discovery and editorial layer, not a model host or benchmark authority. It does not, on the evidence available, publish standardized performance comparisons you can rely on for a final decision, and the page does not state pricing for any model or for the site itself. The site references subscribing and uses Stripe for payments, which indicates paid options exist, but the specific terms are not described here — check the site directly if cost matters for your choice.

For a quick decision: use AIModels.fyi when you need to locate candidate models for a defined task or want a plain-language explanation of a paper or technique. Do not use it as your only source for performance claims or licensing terms; verify those with the model's own documentation.

How to Find the Right AI Model for Your Project on AIModels.fyi

AIModels.fyi is built around a searchable, filterable, and sortable database of AI models, so the practical way to find the right one is to define your project's task, modality, and constraints first, then use search and filters to narrow the list, and finally review model details before committing. This approach works best when you already know the job the model must do (for example, image generation, document understanding, or audio-to-waveform conversion) and are choosing among candidates rather than browsing for inspiration.

Start with a clear model brief

Before touching the search bar, write down three things:

  • Task type — what the model must actually do. The site's own coverage spans very different jobs, from Stable Diffusion Img2Img for image generation to SmolDocling for document understanding to an audio-to-waveform model for turning sound into sight.
  • Modality — text, image, audio, video, or documents. Mixing modalities in your search terms is the most common reason results feel irrelevant.
  • Constraints — size, speed, licensing, or deployment environment. The site highlights compact options (SmolDocling is described as an "ultra-compact VLM"), which matters if you are deploying to limited hardware.

A one-paragraph brief like this turns a vague "find me an AI model" into a filterable query.

Use search, filter, and sort in that order

The site's stated purpose is to "search, filter, and sort through a vast database of AI models." Treat those as three distinct steps:

  1. Search with the task and modality from your brief, not with product names. Searching "document understanding" is more productive than searching a model you half-remember.
  2. Filter the results down using your constraints. Filters are where you eliminate candidates that cannot fit your deployment or input type.
  3. Sort the remaining list by whatever matters most to your project — recency, popularity, or relevance — so the top of the list reflects your priority, not the site's default.

If a search returns nothing useful, loosen one dimension at a time (drop the constraint, then the modality) rather than rewriting the whole query.

Review model details before choosing

Search results are a shortlist, not a decision. Before picking a model, check:

  • What the model was trained for — a model that performs well on one task may be the wrong fit for an adjacent one.
  • Input and output format — confirm it accepts the data you have and returns what your pipeline needs.
  • Size and resource expectations — compact models trade capability for deployability; decide which side of that trade you need.
  • Recency and activity — the site's Latest and Plain English Papers sections show what is currently being discussed, which helps you judge whether a model is current or superseded.

The site also publishes plain-English explanations of papers and guides, such as its walkthrough of turning spoken audio or music into a waveform with a simple AI model. Reading the companion explainer for a candidate model is often faster than reading the paper itself and tells you whether the model's approach matches your problem.

Use the site's editorial sections as a second pass

Beyond the model database, AIModels.fyi organizes content into sections that help with selection:

Section What it gives you When to use it
Latest Recent posts on new models and techniques Checking whether a candidate is current
Plain English Papers Accessible summaries of research papers Understanding how a model works before adopting it
Guides Step-by-step walkthroughs of specific models Confirming a model fits a concrete task
Build In Public Case studies of AI products and tools Seeing how others applied models in practice
News Industry developments Context on where a model family is heading

For example, if your project needs to convert speech to a visual waveform, the Guides section's audio-to-waveform walkthrough is a more direct starting point than a raw database search, because it shows the model in use.

Common sticking points

  • Searching by brand instead of capability. You will miss better-fitting models that you have never heard of.
  • Skipping the brief. Without defined constraints, filters have nothing to filter against and you end up comparing incomparable models.
  • Treating the top result as the answer. Sorting changes the top result; make sure the sort order matches your actual priority.
  • Ignoring the explainer content. A five-minute read of a plain-English summary can save you from adopting a model built for a subtly different task.

What this site is and is not

AIModels.fyi is a discovery and evaluation resource: it helps you search, filter, sort, and understand models. It is not a guarantee that any listed model is production-ready for your specific use case, and the site's materials do not establish pricing or access terms for individual models — check each model's own documentation for licensing, cost, and usage limits before you build on it.

What Are the Plain English Papers on AIModels.fyi?

The Plain English Papers section on AIModels.fyi is a blog category that summarizes AI research in accessible language, aimed at readers who want research insights without reading full technical papers. Each entry takes a paper or research development and explains its core idea in plain terms, often with a short takeaway in the subtitle. It suits practitioners, product builders, and curious readers who want to keep up with AI research but don't need the full academic treatment.

What the section covers

Based on the posts listed on the site, the section spans model architecture, generative media, and applied AI research. Examples include:

  • Video editing and physics — "Netflix's VOID shows video editing has finally learned the laws of physics," which frames object removal as a causal simulation rather than pixel patching, eliminating "ghost" physics from edited scenes.
  • Model architecture — "Simplifying transformer blocks," a look at streamlining the building blocks of transformer models.
  • Document understanding — "SmolDocling: An Ultra-Compact VLM for Document Understanding," covering a compact vision-language model for documents.
  • Model evaluation and prompting — posts such as "What's the best AI model to handle $1 million in freelance software engineering?", "Creating artificial doubt significantly improves AI math accuracy," and "Step-by-step reasoning can fix madman logic in vision AI."
  • Tokenization — "All LLMs use tokenization. Are we doing it totally wrong?"

The common thread is a research finding or technical mechanism, restated so a non-specialist can follow the idea and its implications.

Who it's for

The section fits three kinds of readers:

  1. Builders and product people who need to know what a new technique does and whether it matters for their work, without parsing the full paper.
  2. Readers tracking the field who want a regular digest of notable research across image, video, document, and language models.
  3. Anyone deciding whether a paper is worth a deeper read — the plain-English summary acts as a filter before committing to the original.

It is less suited to readers who need implementation details, benchmark tables, or reproduction steps; those belong in the full papers or in the site's Guides section, which covers hands-on topics like turning audio into waveforms or improving semantic search with hypothetical document embeddings.

How it relates to the rest of the site

AIModels.fyi organizes its content into several sections visible on the homepage: Latest, Plain English Papers, Guides, Build In Public, and News. The distinction matters when choosing where to look:

Section What you get Best for
Plain English Papers Research explained in accessible language Understanding new techniques and findings
Guides Step-by-step tutorials on using models Completing a concrete task
Build In Public Product and project stories Seeing how others apply AI
News Timely updates Tracking developments
Latest Recent posts across sections Browsing what's new

If your goal is to understand a research idea, start with Plain English Papers. If your goal is to build something, the Guides section is the better entry point.

Practical tips for using the section

  • Scan subtitles first. Posts often carry a one-line takeaway under the title (for example, the VOID post's note on eliminating ghost physics), which tells you quickly whether the topic is relevant.
  • Use it as a triage step. Read the summary, then decide whether to open the original paper for methods and numbers.
  • Check dates. The listed posts span from 2024 into 2026, so research coverage is ongoing; sort by recency if you need the current state of a topic.
  • Cross-reference with Guides. When a summarized technique looks useful for a project, look for a corresponding hands-on guide before attempting implementation.

The section is a reading aid, not a substitute for primary sources — treat each post as a map of the idea, and go to the paper when you need the details.

Website Overview

Identifiable technologies and additional version or configuration signals make the service easier to fingerprint, which may help targeted scanners narrow their checks. Page metadata, canonical configuration and social previews work together to provide more consistent search and sharing presentation.

Domain and Registration

Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain has about 3 years of registration history; its current configuration provides more context than age alone. The registrar is Squarespace Domains II LLC, a widely used domain service provider. The domain uses the common .fyi extension, which is not an independent safety signal.

DNS and Email

The lowest TTL is 60 seconds, supporting rapid record changes at the cost of more frequent lookups. Nameservers are provided by Cloudflare, indicating managed DNS hosting. MX records point to the Google Workspace email service. DNSSEC is enabled, allowing validating resolvers to authenticate signed DNS data. SPF and DMARC are configured. DKIM status is unknown.

TLS and Certificates

The certificate uses an RSA 2048-bit public key, offering broad client compatibility. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate's total validity is about 29 days, consistent with a short renewal cycle. The certificate covers the main domain and its usual www hostname.

HTTP and Browser Security

The checked browser-security headers were not detected, leaving fewer explicit browser-side safeguards. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The x-cache, x-served-by, via response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers. The Server header contains the custom value openresty.

Technology Stack Analysis

The public page identifies Ghost 6.72, Google Analytics, Stripe, Fastly, with exact versions exposed for 1 technologies. These details can narrow vulnerability checks, although exposure alone is not a vulnerability.

Search and Social Sharing

The Generator tag identifies Ghost 6.72, making the publishing system easier to fingerprint. Twitter Card metadata is configured. JSON-LD includes Organization data, helping describe the organization as an entity. The title has 12 characters, within a common display range. A meta description is present, with 99 characters.

Hosting and Email

DNSCloudflare
HostingFastly
EmailGoogle Workspace
Approximate IP geolocation (inferred; a CDN or proxy may differ from the origin server) United States flagUnited States Inferred 151.101.131.7

Registration details

RDAP / WHOIS

RegistrarSquarespace Domains II LLC
Registered2023-05-14
Expires2027-05-14
Domain statusclient delete prohibited、client transfer prohibited
Nameserversdion.ns.cloudflare.com、mira.ns.cloudflare.com
DNSSECsigned

DNS records

DNS

TypeNameValueTTLPriority
Aghost.map.fastly.net151.101.131.760—
Aghost.map.fastly.net151.101.195.760—
Aghost.map.fastly.net151.101.3.760—
Aghost.map.fastly.net151.101.67.760—
AAAAghost.map.fastly.net2a04:4e42:200::77560—
AAAAghost.map.fastly.net2a04:4e42:400::77560—
AAAAghost.map.fastly.net2a04:4e42:600::77560—
AAAAghost.map.fastly.net2a04:4e42::77560—
MXaimodels.fyiaspmx.l.google.com3001
MXaimodels.fyialt1.aspmx.l.google.com3005
MXaimodels.fyialt2.aspmx.l.google.com3005
MXaimodels.fyialt3.aspmx.l.google.com30010
MXaimodels.fyialt4.aspmx.l.google.com30010
NSaimodels.fyidion.ns.cloudflare.com86400—
NSaimodels.fyimira.ns.cloudflare.com86400—
TXTaimodels.fyigoogle-site-verification=6qTxdGKxSmiRoxAdZXS234DCRtvJxAbwISvWX8yQoI060—
TXTaimodels.fyiopenai-domain-verification=dv-uxIRApujWZk0rCSxxgizNHTk60—
TXTaimodels.fyiv=spf1 include:_spf.google.com ~all60—
CNAMEnotes.aimodels.fyiaimodels-fyi.ghost.io60—
DSaimodels.fyi2371 13 2 9ca976438d2ce8d062ee887adecae11635d70c288be74fd4aead8e19e01cf22c3600—
DMARC_dmarc.aimodels.fyiv=DMARC1; p=none;300—

TLS and certificates

TLS / SSL

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectnotes.aimodels.fyi
IssuerCertainly
Valid until2026-11-16T21:57 · Remaining when checked: 28 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HTTP

HeaderValue
content-typetext/html; charset=utf-8
cache-controlpublic, max-age=0
serveropenresty

Identified technologies

Ghost 6.72Google AnalyticsStripeFastly

Pages, Search and Sharing

Meta descriptionSearch, filter, and sort through a vast database of AI models. Find the right one for your project.
Canonical URLhttps://notes.aimodels.fyi/
LanguageEnglish (default)
Twitter Cardsummary_large_image
All bots 0 allowed · 6 disallowed
  • Disallow/ghost/
  • Disallow/email/
  • Disallow/members/api/comments/counts/
  • Disallow/r/
  • Disallow/webmentions/receive/
  • Disallow/.ghost/analytics/api/

Recent Updates

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