Anthropic·opus·opus-5.5

Claude Opus 5.5

Released: 2026-09-22Updated: 2026-10-20
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Benchmark scores

HLE(vendor card, max effort, no tools)64.4%
Terminal-Bench 4.0(vendor-reported, xhigh effort; Artificial Analysis measures 59.6 in its own harness)66.4%
HLE (w/tools)(vendor-reported, with tools)67.7%
Chartography (w/tools)(vendor-reported, with tools)89%

Pricing

Input$4.00
Output$20.00
Cached input$0.200
Source · verified 2026-10-20
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Comparisons