GPT-5.2 vs Gemini 3 Pro
Gemini 3 Pro is cheaper on output tokens, while Gemini 3 Pro offers a larger context window. Choose GPT-5.2 or Gemini 3 Pro based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GPT-5.2 | Gemini 3 Pro |
|---|---|---|
| Provider | OpenAI | OpenCode |
| Input / 1M tokens | $1.75 | $2.00 |
| Output / 1M tokens | $14.00 | $12.00 |
| Context window | 400K | 1M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Dec 2025 | Nov 2025 |
| LiveBench score | 75.4 | 73.5 |
| SWE-bench Verified score | 72.8 | — |
| LMArena (Chatbot Arena) Elo score | 1416 | 1479 |
| SWE-bench Multilingual score | 66.7 | 68.7 |
| Epoch Capabilities Index score | 154 | 153 |
| LMArena WebDev Elo score | 1416 | 1440 |
| LMArena Vision Elo score | 1246 | 1305 |
| GPQA Diamond score | 91.4 | — |
| FrontierMath score | 40.7 | — |
FAQ
Is GPT-5.2 or Gemini 3 Pro cheaper?
Gemini 3 Pro is cheaper on output tokens ($12.00 vs $14.00 per 1M).
Which has the larger context window, GPT-5.2 or Gemini 3 Pro?
Gemini 3 Pro has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.