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Claude Opus 5.5

Anthropic·Operational·Released 2026-09-22textvision
Context1,000k
Max output128k
Input / 1M$4 ↗
Output / 1M$20 ↗
Cached in$0.2
Benchmarks9

Benchmarks

Cited public sources · rank is exact-benchmark, apples-to-apples

AutomationBench 1.0.6#2/340% ↗
Chartography (with tools)#1/289% ↗
CursorBench 4.0#1/257.8% ↗
FrontierCode v1.1 (Main)54.4% ↗
GDPval-AA v2.11846 ↗
Humanity's Last Exam (with tools)#1/1467.7% ↗
OSWorld 2.0 (partial)81.8% ↗
Terminal-Bench 4.0#1/266.4% ↗
Terminal-Bench Science 0.1#2/458.7% ↗

Compare

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Access Claude Opus 5.5 and every other model through one endpoint with automatic failover: Respan gateway.