Claude Opus 4.5
Anthropic · 2 thinking configurations
Intelligence23.7
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
Selected: thinking none · Click a point to switch configuration
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.
23.7 pointsGPQA DiamondGraduate-level scientific questions. Measures specialist reasoning rather than web-search quality.
81.0 %Humanity’s Last ExamDifficult questions across many disciplines, compared under the same evaluation setup.
13.2 %τ²-BenchTool use and interaction in assistance scenarios. Does not replace an evaluation of your integration.
86.3 %IFBenchVerifiable instruction following. A proxy for precision rather than a benchmark of creative style.
43.0 %MMMU-ProMultimodal understanding of academic problems that include images.
71.2 %Omniscience accuracyFactual accuracy in Artificial Analysis's Omniscience evaluation.
40.9 %Specifications from the catalog
Inputfile, image, text
Outputtext
Tool callingYes
Structured outputYes
Speed45.4 tok/s
First token1.23 s
Maximum output64K
Catalog listing date2025-11-24