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Comparison

Claude Opus 4 vs Claude 3.5 Sonnet

Side-by-side comparison of Anthropic Claude Opus 4 and Anthropic Claude 3.5 Sonnet. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding98 / 75Math98 / 75Reasoning98 / 75Language98 / 75

Claude Opus 4

98.4Frontier

Claude 3.5 Sonnet

75.3Frontier

Claude Opus 4
Claude 3.5 Sonnet

Input Price (per 1M)

$15.00
$6.00
60% less

Output Price (per 1M)

$75.00
$30.00
60% less

Context Window

200K
200K

Max Output

32K
3.9x
8.2K

Anthropic

Claude Opus 4

vs

Anthropic

Claude 3.5 Sonnet

Pricing per 1M Tokens

$15.00

Input

Input

$6.00

60% cheaper

Input

$75.00

Output

Output

$30.00

60% cheaper

Output

Token Limits

Context

200K

Context

Context

200K

Max Output

32K

Max Output

Max Output

8.2K

VisionTools
VisionTools

Claude Opus 4 Details

$15.00 in / $75.00 out

Claude 3.5 Sonnet Details

$6.00 in / $30.00 out

Compare Models

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Claude Opus 4.6 vs Claude 3.5 Sonnet

$5.00/M in · Score 78.7

Top Anthropic pick

Claude Opus 4 vs Claude Opus 4

$15.00/M in · Score 98.4

Anthropic

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

Anthropic

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