Compare · ModelsLive · 2 picked · head to head
Gemini 3.1 Pro Preview vs GPT-5.1-Codex-Mini
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Gemini 3.1 Pro Preview wins on 0/0 benchmarks
Not enough overlapping benchmarks to declare a winner yet · Gemini 3.1 Pro Preview · GPT-5.1-Codex-Mini are still filling in scores.
Hype vs Reality
Attention vs performance
Gemini 3.1 Pro Preview
#36 by perf·no signal
GPT-5.1-Codex-Mini
#39 by perf·no signal
Best value
GPT-5.1-Codex-Mini
6.2x better value than Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview
8.7 pts/$
$7.00/M
GPT-5.1-Codex-Mini
53.7 pts/$
$1.13/M
Vendor risk
Who is behind the model
Google DeepMind
$4.00T·Tier 1
OpenAI
$840.0B·Tier 1
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| Gemini 3.1 Pro Preview | $2.00 | $12.00 | 1.0M tokens (~524 books) | $45.00 |
| GPT-5.1-Codex-Mini | $0.25 | $2.00 | 400K tokens (~200 books) | $6.88 |
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