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Comparison

Claude Sonnet 4 vs Claude Opus 4

Side-by-side comparison of Anthropic Claude Sonnet 4 and Anthropic Claude Opus 4. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding55 / 98Math71 / 98Reasoning64 / 98Language53 / 98

Claude Sonnet 4

60.7Strong

Claude Opus 4

98.4Frontier

Claude Sonnet 4
Claude Opus 4

Input Price (per 1M)

$3.00
80% less
$15.00

Output Price (per 1M)

$15.00
80% less
$75.00

Context Window

200K
200K

Max Output

64K
2.0x
32K

Anthropic

Claude Sonnet 4

vs

Anthropic

Claude Opus 4

Pricing per 1M Tokens

$3.00

80% cheaper

Input

Input

$15.00

Input

$15.00

80% cheaper

Output

Output

$75.00

Output

Token Limits

Context

200K

Context

Context

200K

Max Output

64K

Max Output

Max Output

32K

VisionTools
VisionTools

Claude Sonnet 4 Details

$3.00 in / $15.00 out

Claude Opus 4 Details

$15.00 in / $75.00 out

Compare Models

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More Comparisons

Top Anthropic pick

Claude Opus 4 vs Claude Opus 4

$15.00/M in · Score 98.4

Top Anthropic pick

Claude Sonnet 4 vs Claude Opus 4.6

$5.00/M in · Score 78.7

Anthropic

Claude Opus 4.6 vs Claude Opus 4$5.00/MClaude Sonnet 4.6 vs Claude Opus 4$3.00/MClaude 3.7 Sonnet vs Claude Opus 4$3.00/MClaude Opus 4.5 vs Claude Opus 4$5.00/M

Anthropic

Claude Sonnet 4 vs Claude Sonnet 4.6$3.00/MClaude Sonnet 4 vs Claude 3.7 Sonnet$3.00/MClaude Sonnet 4 vs Claude Opus 4.5$5.00/MClaude Sonnet 4 vs Claude 3.5 Sonnet$6.00/M