Anthropic

Claude Sonnet 4

Name: Claude Sonnet 4
Author: Anthropic

Complete specs, pricing, and benchmark data for Claude Sonnet 4 by Anthropic. Last verified 2026-04-03.

VisionMultimodalJSON ModeFunctionsStreaming

Pricing

Input / 1M tokens

$3.00

Output / 1M tokens

$15.00

Cached Input / 1M

$0.300

Batch Input / 1M

$1.50

Context & Output

Context Window

200K

Max Output

64,000

TTFT

320ms

Speed

78 tok/s

Benchmarks

Arena ELO

1280

Coding ELO

1305

Reasoning ELO

1275

HumanEval

MMLU

88.7

MATH

78.3

GPQA

65.2

Price History (Input $/M tokens)

Model:

Strengths

Limitations

CodingAnalysisLong ContextAgents