gpt-oss
OpenAI · gpt-oss line · lightweight · open weights
Inactiveno release in over a year
Released Aug 5, 2025 · what changed →Days since last release
Days since last release
gpt-oss · Aug 5, 2025
429
days
The newest gpt-oss model is gpt-oss, released on August 5, 2025. It has been 429 days since then, more than a year without a release, so the line is inactive; a new release would bring it back.
Where the line stands
How long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
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Every gpt-oss release
Newest first — what each version changed versus the one before, in OpenAI's own numbers.