GPT-5.4vsKimi K2.6
Kimi K2.6 is cheaper than GPT-5.4 at $0.95/M vs $2.5/M input tokens.
| Spec | GPT-5.4 | Kimi K2.6 |
|---|---|---|
| Input price | $2.5/M tokens | $0.95/M tokens |
| Output price | $15/M tokens | $4/M tokens |
| Context window | 1.1M tokens | 262K tokens |
| Released | Mar 2026 | Apr 2026 |
Our Verdict
GPT-5.4
Kimi K2.6Runner-up
Not enough votes to call it. On the specs, GPT-5.4 has the edge: bigger model tier, bigger context window, major provider backing.
Kimi K2.6 costs 3.8x less per token.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.4
Input
$2.50
Output
$15.00
Kimi K2.6
Input
$0.95
2.6× cheaper
Output
$4.00
3.8× cheaper
Kimi K2.6 is cheaper on both — 2.6× input, 3.8× output
Writing DNA
Style Comparison
Similarity
29%
Kimi K2.6 uses 3.4x more emoji
GPT-5.4
Kimi K2.6
54%Vocabulary57%
28wSentence Length16w
0.69Hedging0.37
4.1Bold4.3
8.1Lists2.0
0.00Emoji0.03
1.84Headings0.53
0.02Transitions0.16
Based on 22 + 27 text responses
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