Gemini 2.5 Pro (I/O Edition)vsKimi K2 Thinking
Kimi K2 Thinking is cheaper than Gemini 2.5 Pro (I/O Edition) at $0.6/M vs $1.25/M input tokens.
| Spec | Gemini 2.5 Pro (I/O Edition) | Kimi K2 Thinking |
|---|---|---|
| Input price | $1.25/M tokens | $0.6/M tokens |
| Output price | $10/M tokens | $2.5/M tokens |
| Context window | — | 262K tokens |
| Released | May 2025 | Nov 2025 |
Our Verdict
Gemini 2.5 Pro (I/O Edition)
Kimi K2 ThinkingRunner-up
Not enough votes to call it. On the specs, Gemini 2.5 Pro (I/O Edition) has the edge: major provider backing.
Gemini 2.5 Pro (I/O Edition) wins Reasoning and Image Generation. Kimi K2 Thinking costs 4.0x less per token.
Too close to call
API pricing
Cost per 1M tokens
Gemini 2.5 Pro (I/O Edition)
Input
$1.25
Output
$10.00
Kimi K2 Thinking
Input
$0.60
2.1× cheaper
Output
$2.50
4.0× cheaper
Kimi K2 Thinking is cheaper on both — 2.1× input, 4.0× output
Writing DNA
Style Comparison
Similarity
65%
Kimi K2 Thinking uses 4.8x more transitions
Gemini 2.5 Pro (I/O Edition)
Kimi K2 Thinking
58%Vocabulary57%
16wSentence Length26w
0.38Hedging0.36
5.8Bold5.8
5.0Lists6.0
0.00Emoji0.00
0.63Headings0.56
0.01Transitions0.06
Based on 16 + 14 text responses
Research
What we learned reading every model
FAQ
Common questions
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