Progress Index: Frontier AI Capability Climbed From 125 to 325 in Four Years

ArtificialAnlys · x · 2026-10-30

Artificial Analysis introduced its Progress Index v1, an item response theory estimate of general capability across model evaluations. GPT-3.5 Turbo (Nov 2022) scores 125; the frontier passed 200 with OpenAI's first reasoning models in late 2024, 250 with o3 in April 2025, 300 with GPT-5.3 Codex in Feb 2026, and 325 with Claude Fable 5 in June 2026. The chart plots models from Google, OpenAI, Anthropic, Meta, Kimi, DeepSeek, Alibaba, MiniMax, Mistral and others.

Related event: Artificial Analysis Launches Progress Index: Open Models Trail Proprietary by 2-8 Months, Prices Collapse Tenfold(6 posts)→

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