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Claude Sonnet 5 Thinking

anthropic/claude-sonnet-5:thinking
BackTry Model
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Claude Sonnet 5 Thinking

anthropic/claude-sonnet-5:thinking
BackTry Model

Claude Sonnet 5 with adaptive thinking enabled for complex coding, planning, and agentic work.

Added Jun 30, 2026

Context Window

1.0M

Max Output

128.0K

Input Price (Auto)

$2.00/1M

Output Price (Auto)

$10.00/1M

Cache Read (Auto)

$0.20/1M

Capabilities

Benchmarks

Performance metrics and benchmarks

Sourced from Artificial Analysis.

Intelligence Index

55.3

Better than 96% of models compared

Coding Index

71.5

Better than 90% of models compared

Agentic Index

49.7

Better than 92% of models compared

Reasoning

GPQA Diamond

Graduate-level scientific reasoning

91.1%

Better than 94% of models compared

HLE

Humanity's Last Exam

41.3%

Better than 95% of models compared

AA-LCR

Long context reasoning evaluation

77.0%

Better than 95% of models compared

GDPval-AA

Economically valuable tasks

54.3%

CritPt

Research-level physics reasoning

16.9%

Coding

SciCode

Python programming for scientific computing

53.6%

Better than 96% of models compared

Knowledge

AA-Omniscience Accuracy

Proportion of correctly answered questions

40.1%

AA-Omniscience Hallucination Rate

Rate of incorrect answers among non-correct responses

39.4%

Last updated Aug 18, 2026

Artificial Analysis

Providers

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