# AI Benchmark Index > Find AI benchmarks with traceable data, licences, and scores. > **Check before you compare.** Benchmark methods and leaderboards change. Follow the cited primary source before using a result in a decision. AI Benchmark Index lists 270 benchmarks. Updated 2026-10-21. Every page has a markdown copy: add `.md` to its URL, or send `Accept: text/markdown`. The home page copy is [index.md](https://aibenchmarkindex.com/index.md). ## Regions - [Global](https://aibenchmarkindex.com/global.md): 270 benchmarks ## Benchmarks by city - [Online, Global](https://aibenchmarkindex.com/global/online.md): 270 benchmarks ## Categories - [Multimodal](https://aibenchmarkindex.com/category/multimodal.md): 51 benchmarks - [Reasoning](https://aibenchmarkindex.com/category/reasoning.md): 49 benchmarks - [Agents](https://aibenchmarkindex.com/category/agents.md): 34 benchmarks - [Safety](https://aibenchmarkindex.com/category/safety.md): 29 benchmarks - [Science](https://aibenchmarkindex.com/category/science.md): 24 benchmarks - [Coding](https://aibenchmarkindex.com/category/coding.md): 17 benchmarks - [Retrieval](https://aibenchmarkindex.com/category/retrieval.md): 17 benchmarks - [Memory](https://aibenchmarkindex.com/category/memory.md): 10 benchmarks - [Browser](https://aibenchmarkindex.com/category/browser.md): 7 benchmarks - [Tools](https://aibenchmarkindex.com/category/tools.md): 7 benchmarks - [Voice](https://aibenchmarkindex.com/category/voice.md): 7 benchmarks - [Math](https://aibenchmarkindex.com/category/math.md): 6 benchmarks - [Other](https://aibenchmarkindex.com/category/other.md): 6 benchmarks - [Commerce](https://aibenchmarkindex.com/category/commerce.md): 4 benchmarks - [Long-horizon](https://aibenchmarkindex.com/category/long-horizon.md): 3 benchmarks ## Free tools - [Which benchmark should I use?](https://aibenchmarkindex.com/tools/which-benchmark-should-i-use.md): Rank benchmarks for your task by category, saturation, and data licence. - [Eval run cost estimator](https://aibenchmarkindex.com/tools/eval-run-cost-estimator.md): Estimate model API cost from task count, tokens, and per-million-token prices. ## Guides - [How to choose an AI benchmark](https://aibenchmarkindex.com/guides/how-to-choose-an-ai-benchmark.md): Choose an AI benchmark by defining the decision first, then checking task fit, grader validity, data access, saturation, and provenance. - [How to run an AI benchmark yourself for under $20](https://aibenchmarkindex.com/guides/run-a-benchmark-under-20.md): Keep an AI benchmark run under $20 by fixing the question, sampling tasks, estimating tokens, using deterministic graders, and saving a reproducible run record. - [Silly benchmarks that tell you something real (pelican, skateboard, and friends)](https://aibenchmarkindex.com/guides/silly-benchmarks-real-signals.md): Playful tasks such as drawing a pelican on a bicycle can expose planning, geometry, tool use, and persistence when their grader makes the signal explicit. - [What a saturated benchmark is and how to spot one](https://aibenchmarkindex.com/guides/what-is-a-saturated-benchmark.md): A saturated benchmark no longer separates strong systems well; spot it by score clustering, ceiling effects, stale tasks, and shrinking uncertainty-aware gaps. - [Where benchmark data comes from and what its licence lets you do](https://aibenchmarkindex.com/guides/where-benchmark-data-comes-from.md): Benchmark data may be written, sampled, generated, or drawn from public datasets; its licence determines whether you may download, modify, and redistribute it. ## About this site - [About AI Benchmark Index](https://aibenchmarkindex.com/about.md): What AI Benchmark Index is, where its data comes from, and how a listing is checked. - [Contact AI Benchmark Index](https://aibenchmarkindex.com/contact.md): How to reach AI Benchmark Index: our email address, how fast we reply, and how to add or fix a listing. - [Link exchange with AI Benchmark Index](https://aibenchmarkindex.com/link-exchange.md): Swap links with AI Benchmark Index for free. You link to us. We check the link. An approved site gets a partners page link, a guide mention, or a blog mention. - [The benchmark newsletter](https://aibenchmarkindex.com/newsletter): A short email now and again: new benchmarks, score changes that matter, and one source note. No noise. ## Data sources - [Benchmark primary sources](https://aibenchmarkindex.com/about): license CC0-1.0, refreshed quarterly ## API - [OpenAPI 3.1 description](https://aibenchmarkindex.com/api/v1/openapi.json): the read API as JSON - [API guide](https://aibenchmarkindex.com/developers): endpoints, examples, rate limits and how to credit the data - [MCP server card](https://aibenchmarkindex.com/.well-known/mcp/server-card.json): the MCP server at https://aibenchmarkindex.com/mcp and its tools - [Agent card](https://aibenchmarkindex.com/.well-known/agent-card.json): the A2A agent at https://aibenchmarkindex.com/a2a and its skills - [Agent skills](https://aibenchmarkindex.com/.well-known/agent-skills/index.json): a skill that explains the API and the MCP server - [API catalog](https://aibenchmarkindex.com/.well-known/api-catalog): the API description and the guide as an RFC 9727 linkset - [WebMCP manifest](https://aibenchmarkindex.com/webmcp): the tools as a manifest ## Optional - [Every benchmark with its facts](https://aibenchmarkindex.com/llms-full.txt) - [Sitemap](https://aibenchmarkindex.com/sitemap.xml): every indexable page