Gemini 3.1 Pro PreviewvsOpenAI o4 Mini High
OpenAI o4 Mini High is cheaper than Gemini 3.1 Pro Preview at $1.1/M vs $2/M input tokens.
| Spec | Gemini 3.1 Pro Preview | OpenAI o4 Mini High |
|---|---|---|
| Input price | $2/M tokens | $1.1/M tokens |
| Output price | $12/M tokens | $4.4/M tokens |
| Context window | 1.0M tokens | 200K tokens |
| Released | Feb 2026 | Apr 2025 |
| SWE-bench Verified | 80.6% | 68.1% |
Our Verdict
Gemini 3.1 Pro Preview
OpenAI o4 Mini HighRunner-up
Not enough votes to call it. On the specs, Gemini 3.1 Pro Preview has the edge: bigger model tier, newer, bigger context window.
Slight edge
API pricing
Cost per 1M tokens
Gemini 3.1 Pro Preview
Input
$2.00
Output
$12.00
OpenAI o4 Mini High
Input
$1.10
1.8× cheaper
Output
$4.40
2.7× cheaper
OpenAI o4 Mini High is cheaper on both — 1.8× input, 2.7× output
Writing DNA
Style Comparison
Similarity
51%
Gemini 3.1 Pro Preview uses 487.7x more bold
Gemini 3.1 Pro Preview
OpenAI o4 Mini High
54%Vocabulary70%
18wSentence Length18w
0.29Hedging0.33
4.9Bold0.0
3.3Lists1.3
0.00Emoji0.02
0.72Headings0.00
0.14Transitions0.04
Based on 23 + 14 text responses
Research
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FAQ
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