Comparison
GPT 5.5 vs Kimi K2
Side-by-side comparison of OpenAI GPT 5.5 and Moonshot Kimi K2. Pricing, quality benchmarks, and context windows.
Quality Benchmarks
LiveBench / 0-100
GPT 5.5
83.0Frontier
Kimi K2
63.4Strong
GPT 5.5
Kimi K2
Input Price (per 1M)
$5.00
$0.5700
Output Price (per 1M)
$30.00
$2.30
Context Window
1.1M
131.1K
Max Output
128K
32.8K
Pricing per 1M Tokens
$5.00
Input
Input
$0.5700
89% cheaper
Input
$30.00
Output
Output
$2.30
92% cheaper
Output
Token Limits
Context
1.1M
Context
Context
131.1K
Max Output
128K
Max Output
Max Output
32.8K
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