gpt-oss was released by OpenAI on August 5, 2025, as an open-weights lightweight model in the gpt-oss line.
- Release 1 of 1 in the gpt-oss line.
- The first release in this line.
- Still the newest model in the line.
No detailed card for this model: we only add numbers published by the maker or by independent benchmarks. Sources: OpenAI · OpenAI on Hugging Face · TechCrunch
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Where the gpt-oss line stands
gpt-oss is the current model in this line. The card shows how long it has been since the last release against the line's usual gap and its recent ones — the rhythm, not a date.
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
Every gpt-oss release
Newest first. See the full line with every card →
- Aug 5, 2025gpt-oss · this page