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Comparison

Claude Opus 4 vs Claude Opus 4.5

Side-by-side comparison of Anthropic Claude Opus 4 and Anthropic Claude Opus 4.5. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding98 / 70Math98 / 90Reasoning98 / 84Language98 / 68

Claude Opus 4

98.4Frontier

Claude Opus 4.5

78.0Frontier

Claude Opus 4
Claude Opus 4.5

Input Price (per 1M)

$15.00
$5.00
67% less

Output Price (per 1M)

$75.00
$25.00
67% less

Context Window

200K
200K

Max Output

32K
64K
2.0x

Anthropic

Claude Opus 4

vs

Anthropic

Claude Opus 4.5

Pricing per 1M Tokens

$15.00

Input

Input

$5.00

67% cheaper

Input

$75.00

Output

Output

$25.00

67% cheaper

Output

Token Limits

Context

200K

Context

Context

200K

Max Output

32K

Max Output

Max Output

64K

VisionTools
VisionTools

Claude Opus 4 Details

$15.00 in / $75.00 out

Claude Opus 4.5 Details

$5.00 in / $25.00 out

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More Comparisons

Top Anthropic pick

Claude Opus 4.6 vs Claude Opus 4.5

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

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