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Comparison

GPT 5 Chat vs Kimi K2

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

Quality Benchmarks

LiveBench / 0-100

Coding85 / 50Math85 / 81Reasoning85 / 60Language85 / 62

GPT 5 Chat

85.1Frontier

Kimi K2

63.4Strong

GPT 5 Chat
Kimi K2

Input Price (per 1M)

$1.25
$0.5700
54% less

Output Price (per 1M)

$10.00
$2.30
77% less

Context Window

128K
131.1K
1.0x

Max Output

16.4K
32.8K
2.0x

OpenAI

GPT 5 Chat

vs

Moonshot

Kimi K2

Pricing per 1M Tokens

$1.25

Input

Input

$0.5700

54% cheaper

Input

$10.00

Output

Output

$2.30

77% cheaper

Output

Token Limits

Context

128K

Context

Context

131.1K

Max Output

16.4K

Max Output

Max Output

32.8K

Vision
Tools

GPT 5 Chat Details

$1.25 in / $10.00 out

Kimi K2 Details

$0.5700 in / $2.30 out

Compare Models

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