Claude Sonnet 5
Anthropic · 6 thinking configurations
Intelligence24.3
Input / 1M$2.00
Output / 1M$10.00
Context1M
Tariff: Anthropic · Source: artificial-analysis · USD per million tokens
Thinking configuration
What does more thinking buy you?
Compare this model’s measured thinking configurations.
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Efficient frontier: best measured score at each cost5 measured configurations · 1 without both values
Selected: thinking low · Click a point to switch configuration
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Intelligence IndexArtificial Analysis composite index, not a percentage. Different versions of the index are not directly comparable.
24.3 pointsDeepSWE · pass@1Software-engineering tasks on mini-swe-agent v1.1. Pass@1 across evaluated runs, with measured cost per task. The 95% intervals may overlap.
30.5 % ±1.1Humanity’s Last ExamDifficult questions across many disciplines, compared under the same evaluation setup.
21.9 %SciCodeCode generation for scientific research problems.
50.1 %Omniscience accuracyFactual accuracy in Artificial Analysis's Omniscience evaluation.
37.4 %Specifications from the catalog
Inputtext, image, file
Outputtext
Tool callingYes
Structured outputYes
Speed57.6 tok/s
First token1.28 s
Maximum output128K
Catalog listing date2026-06-30
DeepSWE v1.1 · 113 tasks · mini-swe-agent · cost $2.19 / task · 77 mean steps · 35.6K mean output tokens. Published by the source 9/22/2026.