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Comparison

GPT 5.5 vs GPT 5

Side-by-side comparison of OpenAI GPT 5.5 and OpenAI GPT 5. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding67 / 92Math96 / 92Reasoning92 / 92Language77 / 92

GPT 5.5

83.0Frontier

GPT 5

92.4Frontier

GPT 5.5
GPT 5

Input Price (per 1M)

$5.00
$1.25
75% less

Output Price (per 1M)

$30.00
$10.00
67% less

Context Window

1.1M
2.6x
400K

Max Output

128K
128K

OpenAI

GPT 5.5

OpenAI

GPT 5

Pricing per 1M Tokens

$5.00

Input

$1.25

75% cheaper

Input

$30.00

Output

$10.00

67% cheaper

Output

Token Limits

Context

1.1M

Context

400K

Max Output

128K

Max Output

128K

VisionTools
VisionTools

GPT 5.5 Details

$5.00 in / $30.00 out

GPT 5 Details

$1.25 in / $10.00 out

More Comparisons

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GPT 5 Codex vs GPT 5

$1.25/M in · Score 92.4

Top OpenAI pick

GPT 5.5 vs GPT 5 Codex

$1.25/M in · Score 92.4

OpenAI

GPT 5 vs GPT 5$1.25/MGPT 5 Image vs GPT 5$10.00/MGPT 5 Chat vs GPT 5$1.25/MGPT 5.4 vs GPT 5$2.50/M

OpenAI

GPT 5.5 vs GPT 5 Image$10.00/MGPT 5.5 vs GPT 5 Chat$1.25/MGPT 5.5 vs GPT 5.4$2.50/MGPT 5.5 vs GPT 5.5$5.00/M

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