Gemini 3.1 Pro Preview vs Gemini 4 Carbon
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Gemini 4 Carbon is 11% cheaper than Gemini 3.1 Pro Preview on a typical 3:1 input/output mix.
| Gemini 3.1 Pro Preview | Gemini 4 Carbon | |
|---|---|---|
| Input price / 1M | $2.00 | $2.00 |
| Output price / 1M | $12.00 | $10.00 |
| Blended price (3:1) | $4.50 | $4.00 |
| Cached input / 1M | $0.20 | $0.10 |
| Context window | 1M | 1M |
| Max output | 66K | 944K |
| Intelligence index | — | 60 |
| Coding index | 68.8 | — |
| Providers | — | 7 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-02-19 | 2026-11-10 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Gemini 3.1 Pro Preview or Gemini 4 Carbon?
Gemini 4 Carbon is 11% cheaper than Gemini 3.1 Pro Preview on a typical 3:1 input/output mix.
Gemini 3.1 Pro Preview vs Gemini 4 Carbon: which has a bigger context window?
Gemini 3.1 Pro Preview: 1,048,576 tokens. Gemini 4 Carbon: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 3.1 Pro Preview ≈ $10,000, Gemini 4 Carbon ≈ $9,000.
More comparisons
Gemini 3.1 Pro Preview vs Claude Fable 5.2Gemini 3.1 Pro Preview vs Gemini Omni 1.2 FlashGemini 3.1 Pro Preview vs Gemini Omni 1.1 FlashGemini 3.1 Pro Preview vs Hy4Gemini 3.1 Pro Preview vs GLM 5.3 FlashX LegalGemini 3.1 Pro Preview vs GPT-6.1 TerraGemini 3.1 Pro Preview vs GPT-6.1 Terra ProGemini 3.1 Pro Preview vs Kimi K3.1 ProGemini 3.1 Pro Preview vs MiniMax M3.1 FlashGemini 3.1 Pro Preview vs DeepSeek V4.1 Flash 1017Gemini 3.1 Pro Preview vs Nemotron 3.5 Super VLGemini 3.1 Pro Preview vs Gemini 4 ArgonGemini 3.1 Pro Preview vs Claude Haiku 5.5Gemini 3.1 Pro Preview vs Nano Banana 2.1Gemini 3.1 Pro Preview vs Mistral Large 4Gemini 3.1 Pro Preview vs GPT-6.1 Sol ProGemini 4 Carbon vs Claude Fable 5.2Gemini 4 Carbon vs Gemini Omni 1.2 FlashGemini 4 Carbon vs Gemini Omni 1.1 FlashGemini 4 Carbon vs Hy4Gemini 4 Carbon vs GLM 5.3 FlashX LegalGemini 4 Carbon vs GPT-6.1 TerraGemini 4 Carbon vs GPT-6.1 Terra ProGemini 4 Carbon vs Kimi K3.1 Pro