GPT-5.5vsKimi K2.7 Code
Kimi K2.7 Code is cheaper than GPT-5.5 at $0.95/M vs $5/M input tokens.
| Spec | GPT-5.5 | Kimi K2.7 Code |
|---|---|---|
| Input price | $5/M tokens | $0.95/M tokens |
| Output price | $30/M tokens | $4/M tokens |
| Context window | 1.1M tokens | 262K tokens |
| Weights | Closed | Open |
| Free API (OpenRouter) | No | No |
| Released | Apr 2026 | Jun 2026 |
Our Verdict
GPT-5.5
Kimi K2.7 Code
Not enough votes to call it. On the specs, nothing separates them.
GPT-5.5 takes Web Design. Kimi K2.7 Code costs 7.5x less per token.
Too close to call
Reviewing agent-written code?See a Brief PR report
API pricing
Cost per 1M tokens
GPT-5.5
Input
$5.00
Output
$30.00
Kimi K2.7 Code
Input
$0.95
5.3× cheaper
Output
$4.00
7.5× cheaper
Kimi K2.7 Code is cheaper on both: 5.3× input, 7.5× output.
Where to run it
17 hosts, cheapest first
Kimi K2.7 Code14 hosts
DeepInfrafp4$0.68 in$3.40 out262k99.9% upInceptronint4$0.71 in$3.21 out262k99.7% upCoreWeaveint4$0.71 in$3.50 out262k100% upStreamLake$0.71 in$3.00 out256k99.6% upVeniceint4$0.75 in$3.50 out256k99.8% upModelRunfp4$0.85 in$3.75 out262k100% up
8 more hostsFewer hosts
SiliconFlowfp8$0.86 in$3.80 out262k99.9% upNovitaint4$0.91 in$3.84 out262k99.9% upAlibaba Cloudfp8$0.95 in$4.00 out262k100% upBasetenfp4$0.95 in$4.00 out262k100% upCloudflare Workers AI$0.95 in$4.00 out262k98.9% upFireworks$0.95 in$4.00 out262k94.8% upGMI Cloudfp8$0.95 in$4.00 out262k99.4% upMoonshot AIint4$0.95 in$4.00 out262k99.9% up
Per million tokens. Prices and uptime via OpenRouter, checked 11 Sep 2026.
Writing DNA
Style Comparison
Similarity
60%
GPT-5.5 uses 2.2x more headings
GPT-5.5
Kimi K2.7 Code
58%Vocabulary57%
18wSentence Length19w
0.74Hedging0.51
2.9Bold4.7
5.1Lists3.3
0.00Emoji0.00
1.68Headings0.76
0.03Transitions0.05
Based on 26 + 27 text responses
Research
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