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Comparison

Claude Sonnet 4.6 vs Claude Opus 4.5

Side-by-side comparison of Anthropic Claude Sonnet 4.6 and Anthropic Claude Opus 4.5. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding68 / 70Math87 / 90Reasoning92 / 84Language66 / 68

Claude Sonnet 4.6

78.1Frontier

Claude Opus 4.5

78.0Frontier

Claude Sonnet 4.6
Claude Opus 4.5

Input Price (per 1M)

$3.00
40% less
$5.00

Output Price (per 1M)

$15.00
40% less
$25.00

Context Window

1M
5.0x
200K

Max Output

128K
2.0x
64K

Anthropic

Claude Sonnet 4.6

vs

Anthropic

Claude Opus 4.5

Pricing per 1M Tokens

$3.00

40% cheaper

Input

Input

$5.00

Input

$15.00

40% cheaper

Output

Output

$25.00

Output

Token Limits

Context

1M

Context

Context

200K

Max Output

128K

Max Output

Max Output

64K

VisionTools
VisionTools

Claude Sonnet 4.6 Details

$3.00 in / $15.00 out

Claude Opus 4.5 Details

$5.00 in / $25.00 out

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More Comparisons

Top Anthropic pick

Claude Opus 4 vs Claude Opus 4.5

$15.00/M in · Score 98.4

Top Anthropic pick

Claude Sonnet 4.6 vs Claude Opus 4

$15.00/M in · Score 98.4

Anthropic

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

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