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Comparison

Claude Opus 4.7 Fast vs GPT 5.5

Side-by-side comparison of Anthropic Claude Opus 4.7 Fast and OpenAI GPT 5.5. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding69 / 67Math93 / 96Reasoning90 / 92Language66 / 77

Claude Opus 4.7 Fast

79.7Frontier

GPT 5.5

83.0Frontier

Claude Opus 4.7 Fast
GPT 5.5

Input Price (per 1M)

$30.00
$5.00
83% less

Output Price (per 1M)

$150.00
$30.00
80% less

Context Window

1M
1.1M
1.1x

Max Output

128K
128K

Anthropic

Claude Opus 4.7 Fast

vs

OpenAI

GPT 5.5

Pricing per 1M Tokens

$30.00

Input

Input

$5.00

83% cheaper

Input

$150.00

Output

Output

$30.00

80% cheaper

Output

Token Limits

Context

1M

Context

Context

1.1M

Max Output

128K

Max Output

Max Output

128K

VisionTools
VisionTools

Claude Opus 4.7 Fast Details

$30.00 in / $150.00 out

GPT 5.5 Details

$5.00 in / $30.00 out

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More Comparisons

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Claude Opus 4 vs GPT 5.5

$15.00/M in · Score 97.8

Top OpenAI pick

Claude Opus 4.7 Fast vs GPT 5 Codex

$1.25/M in · Score 94

Anthropic

Claude Opus 4.7 vs GPT 5.5$5.00/MClaude Opus 4.6 vs GPT 5.5$5.00/MClaude Opus 4.6 Fast vs GPT 5.5$30.00/MClaude Sonnet 4.6 vs GPT 5.5$3.00/M

OpenAI

Claude Opus 4.7 Fast vs GPT 5$1.25/MClaude Opus 4.7 Fast vs GPT 5 Image$10.00/MClaude Opus 4.7 Fast vs GPT 5 Chat$1.25/MClaude Opus 4.7 Fast vs GPT 5.4$2.50/M

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