Claude Opus 5.5 (Adaptive Reasoning, Max Effort, Default Fallback)
Context 1M tokens
Top 3 cheapest providers (Adjusted $/task)
The same list price can give a different adjusted $/task (caching, token efficiency) — click a price for its inputs.
Within the active global provider, residency and confidentiality filters.
| # | Provider | Platform | Raw input $/1M | Raw output $/1M | Adjusted $/task |
|---|---|---|---|---|---|
| 1 | Amazon Bedrock | OpenRouter | $4.00 | $20.00 | |
| 2 | Azure | OpenRouter | $4.00 | $20.00 | |
| 3 | OpenRouter | $4.00 | $20.00 |
Composite
1 of 7 inputs6 radar axes: DesignArena's two boards share one100.0
AA Coding —Coding Agent v1.4 —AA Intelligence 57.6AA Agentic —Epoch ECI —Software ECI —DesignArena —/—
Radar: percentile among all models measured on each input; a gap means not measured.
Benchmark sheet
16 of 265 registered benchmark versions · bars show the percentile among all models measured on each benchmark.
16 of 17 values are Anthropic's own claims (†), not independent measurements; a matching independent result replaces a claim as soon as one exists.
Agentic
Terminal-Bench 4.0 v4.0developer's claim66.4%† self-reported by the developer
Terminal-Bench 4.0 v4.0 → · Published board — Terminal-Bench 4.0 result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic's own run, not an independent measurement.
GDPval-AA v2.1developer's claim1,846 Elo† self-reported by the developer
GDPval-AA v2.1 v2.1 → · Published board — GDPval-AA v2.1 result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic states the evaluation was run independently by Artificial Analysis; the value is published by Anthropic and kept as the vendor's claim, not as an independent measurement.
AutomationBenchdeveloper's claim40.0%† self-reported by the developer
AutomationBench published 2026-09-22 → · Published board — AutomationBench result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic states the run was performed and reported by Zapier; the value is published by Anthropic and kept as the vendor's claim, not as an independent measurement.
OSWorld 2.0 (partial score) v2.0developer's claim81.8%† self-reported by the developer
OSWorld 2.0 (partial score) v2.0 → · Published board — OSWorld 2.0 (partial score) result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic's own run, not an independent measurement.
OSWorld 2.0 (strict pass rate) v2.0developer's claim48.7%† self-reported by the developer
OSWorld 2.0 (strict pass rate) v2.0 → · Published board — OSWorld 2.0 (strict pass rate) result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 System Card (PDF, text layer); Anthropic's own run, not an independent measurement.
AA-Briefcase v1.1developer's claim1,822 Elo† self-reported by the developer
AA-Briefcase v1.1 v1.1 → · Published board — AA-Briefcase v1.1 result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 System Card (PDF, text layer); Anthropic states the evaluation was run independently by Artificial Analysis; the value is published by Anthropic and kept as the vendor's claim, not as an independent measurement.
Coding
FrontierCode v1.1 (Main)developer's claim54.4%† self-reported by the developer
FrontierCode v1.1 (Main) v1.1 → · Published board — FrontierCode v1.1 (Main) result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic's own run, not an independent measurement.
CursorBench 4.0 v4.0developer's claim57.8%† self-reported by the developer
CursorBench 4.0 v4.0 → · Published board — CursorBench 4.0 result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic's own run, not an independent measurement.
SWE-bench Prodeveloper's claim89.9%† self-reported by the developer
SWE-bench Pro published 2026-09-22 → · Published board — SWE-bench Pro result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 System Card (PDF, text layer); Anthropic's own run, not an independent measurement.
SWE-bench Multilingualdeveloper's claim93.9%† self-reported by the developer
SWE-bench Multilingual published 2026-09-22 → · Published board — SWE-bench Multilingual result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 System Card (PDF, text layer); Anthropic's own run, not an independent measurement.
SWE-bench Multimodaldeveloper's claim61.4%† self-reported by the developer
SWE-bench Multimodal published 2026-09-22 → · Published board — SWE-bench Multimodal result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 System Card (PDF, text layer); Anthropic's own run, not an independent measurement.
Knowledge
Humanity's Last Exam (with tools)developer's claim67.7%† self-reported by the developer
Humanity's Last Exam (with tools) published 2026-09-22 → · Published board — Humanity's Last Exam (with tools) result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic's own run, not an independent measurement.
Humanity's Last Exam (no tools)developer's claim64.4%† self-reported by the developer
Humanity's Last Exam (no tools) published 2026-09-22 → · Published board — Humanity's Last Exam (no tools) result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 System Card (PDF, text layer); Anthropic's own run, not an independent measurement.
HealthBench Professionaldeveloper's claim65.6%† self-reported by the developer
HealthBench Professional published 2026-09-22 → · Published board — HealthBench Professional result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 System Card (PDF, text layer); Anthropic's own run, not an independent measurement.
Reasoning
AA Intelligence Index10057.6
AA Intelligence Index published 2026-09-22 → · Published board — Artificial Analysis publishes this board without a version number; we keep the date each result was retained.
Science
Terminal-Bench-Science 0.1 v0.1developer's claim58.7%† self-reported by the developer
Terminal-Bench-Science 0.1 v0.1 → · Published board — Terminal-Bench-Science 0.1 result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic's own run, not an independent measurement.
Vision
Chartography (with tools)developer's claim89.0%† self-reported by the developer
Chartography (with tools) published 2026-09-22 → · Published board — Chartography (with tools) result reported by Anthropic for Claude Opus 5.5 in its 2026-09-22 Claude Opus 5.5 launch post; Anthropic's own run, not an independent measurement.
Missing coverage · 253 benchmark versions
No result does not mean a zero, or that the model was never tested. Collection failures and disputed versions retain their distinct status.
Variants / reasoning settings
Artificial Analysis snapshot 2026-09-22 · Data: Artificial Analysis · Data: Epoch AI (CC BY)
Token offers by platform · 8 offers (Adjusted $/task)
Click any underlined price to see how it is estimated and where each input comes from. How we calculate adjusted cost.
8 offers within the active global filters; “—” means the catalog is active but no public token price is available.
OpenRouter (8)
| Amazon Bedrock | globalamazon-bedrock | $4.00 raw in $/1M | $20.00 raw out $/1M | |
| Azure | globalazure/global | $4.00 raw in $/1M | $20.00 raw out $/1M | |
| globalgoogle-vertex/global | $4.00 raw in $/1M | $20.00 raw out $/1M | ||
| Amazon Bedrock | euamazon-bedrock/eu-west-1EU | $4.40 raw in $/1M | $22.00 raw out $/1M | |
| Amazon Bedrock | globalamazon-bedrock/us-east-1 | $4.40 raw in $/1M | $22.00 raw out $/1M | |
| Azure | globalazure/us | $4.40 raw in $/1M | $22.00 raw out $/1M | |
| globalgoogle-vertex/us | $4.40 raw in $/1M | $22.00 raw out $/1M | ||
| eugoogle-vertex/europeEU | $4.40 raw in $/1M | $22.00 raw out $/1M |