models.dev

Why we included this project

Models.dev is a community-maintained registry of structured facts about AI models: token pricing, context and output limits, reasoning and tool-call support, release dates, and whether weights are open. The data is stored as TOML files in the public repo, so you can read the source, verify a claim yourself, or fork the whole thing into your own registry. It also serves everything through plain JSON endpoints you can hit from a script, which makes it useful for cost estimates, capacity planning, or keeping an internal model inventory in sync with what providers actually ship. The canonical Model IDs line up with the AI SDK ecosystem, so lookups are painless if you already build with that stack.