Models.dev

Models.dev is a comprehensive open-source database that brings together everything you need to know about AI models in one place — specifications, pricing, providers, capabilities, context limits, output limits, release dates, and update dates. Instead of digging through scattered documentation, you get a single community-maintained source of truth for researching and comparing the models you are evaluating.

Because the metadata is provider-agnostic, you can see model details independent of any single vendor, check which providers serve each model, and browse canonical models organized by laboratory or author. This makes it easy to compare models such as GPT-6 Astra across multiple providers and choose the option that best fits your needs and budget.

Models.dev also surfaces the features that matter in real projects — reasoning, tool calling, structured output, temperature support, and weights availability — so you know exactly what each model can do before committing to it. For developers, the data can be accessed programmatically through JSON APIs or a type-safe SDK, making it simple to integrate up-to-date model information directly into your applications and workflows.