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Comparison

Claude 3.5 Sonnet vs Claude Opus 4.5

Side-by-side comparison of Anthropic Claude 3.5 Sonnet and Anthropic Claude Opus 4.5. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding75 / 70Math75 / 90Reasoning75 / 84Language75 / 68

Claude 3.5 Sonnet

75.3Frontier

Claude Opus 4.5

78.0Frontier

Claude 3.5 Sonnet
Claude Opus 4.5

Input Price (per 1M)

$6.00
$5.00
17% less

Output Price (per 1M)

$30.00
$25.00
17% less

Context Window

200K
200K

Max Output

8.2K
64K
7.8x

Anthropic

Claude 3.5 Sonnet

vs

Anthropic

Claude Opus 4.5

Pricing per 1M Tokens

$6.00

Input

Input

$5.00

17% cheaper

Input

$30.00

Output

Output

$25.00

17% cheaper

Output

Token Limits

Context

200K

Context

Context

200K

Max Output

8.2K

Max Output

Max Output

64K

VisionTools
VisionTools

Claude 3.5 Sonnet Details

$6.00 in / $30.00 out

Claude Opus 4.5 Details

$5.00 in / $25.00 out

Compare Models

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