GPT-5.5 (xhigh)

OpenAIclosedtextvision

79.7Speed (tok/s) · P45 · measured
$4.35Blended $/M tok · P4 · derived
38.6Intelligence index · P89 · measured
411 msTTFT · measured
1050kContext · list
75Coding index · measured
37Agentic index · measured

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Comparisons (measured vs nearest neighbors): Claude Sonnet 5 (Adaptive Reasoning, Max Effort) · GLM-5.2 (max)

Released 2026-04-23 · catalog data 2026-09-14 · field-level provenance shown per metric above (measured / derived / list, from the catalog sources map); percentiles computed across the 329-model catalog at generation time. Numbers are catalog-sourced and labeled as such — lab-measured lanes stay separate by design. Generated page — do not hand-edit.

Model names are trademarks of their respective owners. Not affiliated with, endorsed by, or sponsored by any provider or measurement service. Sources, attribution & corrections.