GPT-5.2 ProvsKimi K2
Kimi K2 is cheaper than GPT-5.2 Pro at $0.57/M vs $21/M input tokens.
| Spec | GPT-5.2 Pro | Kimi K2 |
|---|---|---|
| Input price | $21/M tokens | $0.57/M tokens |
| Output price | $168/M tokens | $2.3/M tokens |
| Context window | 400K tokens | — |
| Released | Dec 2025 | Jul 2025 |
| SWE-bench Verified | 80.0% | 65.8% |
Our Verdict
GPT-5.2 Pro
Kimi K2Runner-up
Not enough votes to call it. On the specs, GPT-5.2 Pro has the edge: newer, bigger context window, major provider backing.
Kimi K2 costs 73x less per token.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.2 Pro
Input
$21.00
Output
$168.00
Kimi K2
Input
$0.57
37× cheaper
Output
$2.30
73× cheaper
Kimi K2 is cheaper on both — 37× input, 73× output
Writing DNA
Style Comparison
Similarity
54%
Kimi K2 uses 68.5x more emoji
GPT-5.2 Pro
Kimi K2
62%Vocabulary63%
19wSentence Length19w
0.39Hedging0.35
8.6Bold4.2
3.8Lists3.6
0.00Emoji0.68
1.17Headings0.61
0.02Transitions0.06
Based on 10 + 22 text responses
Research
What we learned reading every model
FAQ
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