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Artificial Analysis Progress Index: top released model score rises from 125 to 325

1 article1 sourcesince Oct 29Last article 2h ago ·

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Artificial Analysis says its Progress Index scores the highest released model at 125 for GPT-3.5 Turbo, released in November 2022, and 325 for Claude Fable 5, released in June 2026.

The top score passed 200 with OpenAI's first reasoning models in late 2024, reached 250 with o3 in April 2025, and reached 300 with GPT-5.3 Codex in February 2026.

The index is Artificial Analysis's own measure, and the source reports only the scores it lists. It does not describe how the index is calculated.

Written by AI from the articles below · updated Oct 29, 12:55 PM ET

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Latest developmentOct 29, 12:49 PM ET
Progress Index: top released model score rises from 125 to 325

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Oct 29
  1. Artificial AnalysisOfficial
    Progress Index: top released model score rises from 125 to 325

    AIArtificial Analysis's Progress Index scores GPT-3.5 Turbo, released in November 2022, at 125. The highest score among released models passed 200 with OpenAI's first reasoning models in late 2024, reached 250 with o3 in April 2025, 300 with GPT-5.3 Codex in February 2026, and 325 with Claude Fable 5 in June 2026.

    Image from @ArtificialAnlys's post

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