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Anthropic

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Claude Sonnet 4

Released May 22, 2025

ReasoningVision (Image)Tool Use

Claude Sonnet 4 balances impressive performance for coding with the right speed and cost for high-volume use cases: Coding: Handle everyday development tasks with enhanced performance-power code reviews, bug fixes, API integrations, and feature development with immediate feedback loops.

Context window
1M tokens
Maximum output
8.2K tokens
Input pricing
$3.00/M
Output pricing
$15.00/M

Independent benchmark

LiveBench historical snapshot

51.0overall

Historical benchmark data from LiveBench, release 2026-01-08. Scores are pinned and are not fetched on page load.

Claude Sonnet 4 LiveBench category scores
CategoryScore
Reasoning39.673
Coding80.741
Agentic Coding38.333
Mathematics60.357
Data Analysis44.067
Language71.014
Instruction Following22.679

Benchmarks measure selected evaluation tasks and do not guarantee performance for every prompt or workflow.

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