open weights — A model whose trained parameters are published for anyone to download and run — unlike API-only models you can access but never possess.
SWE-bench — The standard benchmark for AI coding agents: real GitHub issues from real repositories, scored by whether the agent's patch passes the project's own tests.
token — The chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.
Why it matters
Names the four open weightsA model whose trained parameters are published for anyone to download and run — unlike API-only models you can access but never possess.Full definition → models worth evaluating now, with SWE-benchThe standard benchmark for AI coding agents: real GitHub issues from real repositories, scored by whether the agent's patch passes the project's own tests.Full definition → numbers and prices against frontier models, including which cheap first-party endpoint trains on your data and what the non-training hosts charge instead.
