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OpenAI
gpt-oss family
6 releases · Elo progression and succession lineage (D9)
Elo progression
Aug 2025
gpt-oss-120b (High)
OPEN
117B·5.1Ba
1797.3
Aug 2025
gpt-oss-120b (Low)
OPEN
117B·5.1Ba
1251.9
Aug 2025
gpt-oss-120b (Medium)
OPEN
117B·5.1Ba
1493.6
Aug 2025
gpt-oss-20b (High)
OPEN
21B·3.6Ba
1487.8
Aug 2025
gpt-oss-20b (Low)
OPEN
21B·3.6Ba
1000.3
Aug 2025
gpt-oss-20b (Medium)
OPEN
21B·3.6Ba
1300.5