Openai GPT 5.5 (2026-04-23)

released 2026-04-23

BenchAtlas Index

as of 2026-07-14

Not enough benchmark coverage for a composite score (needs ≥4 families across ≥3 categories). The per-benchmark evidence below stands on its own — sparse coverage is an evidence gap, not a low score.

Benchmark evidence

1 results

reasoning math

ARC-AGI-3older version

split=semi_private · model_type=CoT

high effort

0.4 %

independent

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