Claude Opus 4.5
Anthropic · 2 thinking configurations
Intelligence29.1
Input / 1M$5.00
Output / 1M$25.00
Context200K
Tariff: Anthropic · Source: artificial-analysis · USD per million tokens
Thinking configuration
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Compare this model’s measured thinking configurations.
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Efficient frontier: best measured score at each cost2 measured configurations · 0 without both values
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Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...
Intelligence IndexArtificial Analysis composite index, not a percentage. Different versions of the index are not directly comparable.
29.1 pointsGPQA DiamondGraduate-level scientific questions. Measures specialist reasoning rather than web-search quality.
86.6 %Humanity’s Last ExamDifficult questions across many disciplines, compared under the same evaluation setup.
30.1 %τ²-BenchTool use and interaction in assistance scenarios. Does not replace an evaluation of your integration.
89.5 %IFBenchVerifiable instruction following. A proxy for precision rather than a benchmark of creative style.
58.0 %MMMU-ProMultimodal understanding of academic problems that include images.
74.0 %Omniscience accuracyFactual accuracy in Artificial Analysis's Omniscience evaluation.
46.6 %Specifications from the catalog
Inputfile, image, text
Outputtext
Tool callingYes
Structured outputYes
Speed47.4 tok/s
First token15.80 s
Maximum output64K
Catalog listing date2025-11-24