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Claude 4 Sonnet

Latest

Anthropic

Proprietary
# 18

Released

May 22, 2025

# 1

Knowledge Cutoff

Mar 25

# 3

Context Length

1M

chart

Benchmarks

# 25

Code RankedAGI

64.8%

# 2

Coding LiveBench

78.3%

# 20

Aider Polyglot

56.4%

# 3

SWEBench Verified

72.7%

# 4

WebDev Arena

1389.18

# 21

LiveCodeBench v6

48.4%

# 7

Code LMArena

1432

# 1

Svelte Bench

88.9%

# 9

GPQA Diamond

83.8%

# 16

Reason LiveBench

54.9%

# 11

ELO LMArena

1390

# 24

AIME 2025 I & II

85.0%

# 15

Math LiveBench

76.4%

# 24

Humanity Last Exam

7.7%

# 12

MMMU

74.4%

# 15

IF LiveBench

77.3%

# 16

Avg LiveBench

62.4%

coins

Pricing

# 30

Input Cost /M

$3

# 35

Output Cost /M

$15

# 13

Cached Cost /M

$0.3

sparkle-2

Additional Details

Model ID

claude-sonnet-4-20250514

Last Updated

22 days ago