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AI Atlas
Family

gpt-oss

All 6 models in the terminal →

first seen 12 Sept 2026

family_01M2AS5FNG9YNJ1GS6PMRKRH9M

Models
6
First release
4 Aug 2025
Latest release
14 May 2026
Parameters
1.7B – 116.8B
Artifacts
2
Providers
5

Releases

Family releases by statusActiveSept 25Oct 25Nov 25Dec 25Jan 26Feb 26Mar 26Apr 26May 26gpt-oss-120b — 4 Aug 2025gpt-oss-20b — 4 Aug 2025gpt-oss-safeguard-20b — 18 Sept 2025amazon/gpt-oss-120b-p-eagle — 9 Feb 2026amazon/GPT-OSS-20B-P-EAGLE — 20 Feb 2026amazon/gpt-oss-120b-p-eagle-long-context — 14 May 2026

6 dated releases · dot size = best benchmark rank of the member

Members 6

Family members
ModelParamsContextOpennessLicenceReleasedStatusBest rankCompare
amazon/gpt-oss-120b-p-eagle-long-contextAmazon Web Services1.7B—Open weightsApache-2.014 May 2026Active—
amazon/GPT-OSS-20B-P-EAGLEAmazon Web Services1.8B—Open weightsApache-2.020 Feb 2026Active—
amazon/gpt-oss-120b-p-eagleAmazon Web Services1.7B—Open weightsApache-2.09 Feb 2026Active—
gpt-oss-safeguard-20bOpenAI21.5B131.1KOpen weightsApache-2.018 Sept 2025Active—
gpt-oss-120bOpenAI116.8B131.1KOpen weightsApache-2.04 Aug 2025Active#36 Aider polyglot
gpt-oss-20bOpenAI20.9B131.1KOpen weightsApache-2.04 Aug 2025Active#86 SciCode

Lineage among members 1 relations

Open in Graph →
Lineage of the gpt-oss familygpt-oss-safeguard-20b fine-tuned from gpt-oss-20bgpt-oss-20b20.9Bgpt-oss-20bgpt-oss-safeguard-20b21.5Bgpt-oss-safeguard-20b

Benchmark progress

Benchmark progress needs at least two dated members with a rank on the same benchmark. Ranks (not scores) are what the family endpoint provides.

Aggregates are computed from the members' sourced claims; members without a release date or parameter count are left out of the range and timeline rather than guessed. Methodology →