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OpenAI
GPT-5 family
5 releases · Elo progression and succession lineage (D9)
Elo progression
Aug 2025
GPT-5
CLOSED
—
2035.7
Aug 2025
GPT-5 mini
CLOSED
—
1804.4
Aug 2025
GPT-5 nano
CLOSED
—
1545.3
Aug 2025
GPT-5 Pro
CLOSED
—
2290.5
Sep 2025
GPT-5-Codex
CLOSED
—
succeeds GPT-5
2066.9