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Comparison

GPT 5.5 vs Kimi K2.5

Side-by-side comparison of OpenAI GPT 5.5 and Moonshot Kimi K2.5. Pricing, quality benchmarks, and context windows.

Quality Benchmarks

LiveBench / 0-100

Coding67 / 60Math96 / 85Reasoning92 / 74Language77 / 64

GPT 5.5

83.0Frontier

Kimi K2.5

70.8Frontier

GPT 5.5
Kimi K2.5

Input Price (per 1M)

$5.00
$0.4000
92% less

Output Price (per 1M)

$30.00
$1.90
94% less

Context Window

1.1M
4.0x
262.1K

Max Output

128K
262.1K
2.0x

OpenAI

GPT 5.5

vs

Moonshot

Kimi K2.5

Pricing per 1M Tokens

$5.00

Input

Input

$0.4000

92% cheaper

Input

$30.00

Output

Output

$1.90

94% cheaper

Output

Token Limits

Context

1.1M

Context

Context

262.1K

Max Output

128K

Max Output

Max Output

262.1K

VisionTools
VisionTools

GPT 5.5 Details

$5.00 in / $30.00 out

Kimi K2.5 Details

$0.4000 in / $1.90 out

Compare Models

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