GPT-5.1

OpenAI llm

Next iteration of the GPT-5 family with adaptive reasoning effort, including a no-reasoning fast mode, and an updated coding personality.

overall ⌄

62.0

20 of 93 ranked

price · $/M tokens

1.25 / 10

in / out, as of 2026-07-25

to run it yourself ⌄

API only

no weights to run

Benchmarks

What its maker published, and what anyone else measured. Every figure links the document it came from.

On a 1,000-in, 1,000-out call these cost less and rank no lower — a hard comparison to argue with, and a narrow one. Value covers what it misses.

No recorded lineage — root or standalone model.