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Comparison

GPT 5 Chat vs Claude Opus 4.6

Side-by-side comparison of OpenAI GPT 5 Chat and Anthropic Claude Opus 4.6. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding85 / 68Math85 / 89Reasoning85 / 87Language85 / 70

GPT 5 Chat

85.0Frontier

Claude Opus 4.6

78.7Frontier

GPT 5 Chat
Claude Opus 4.6

Input Price (per 1M)

$1.25
75% less
$5.00

Output Price (per 1M)

$10.00
60% less
$25.00

Context Window

128K
1M
7.8x

Max Output

16.4K
128K
7.8x

OpenAI

GPT 5 Chat

vs

Anthropic

Claude Opus 4.6

Pricing per 1M Tokens

$1.25

75% cheaper

Input

Input

$5.00

Input

$10.00

60% cheaper

Output

Output

$25.00

Output

Token Limits

Context

128K

Context

Context

1M

Max Output

16.4K

Max Output

Max Output

128K

Vision
VisionTools

GPT 5 Chat Details

$1.25 in / $10.00 out

Claude Opus 4.6 Details

$5.00 in / $25.00 out

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