Gemini 3.8 Flash vs GPT-6.1 Terra
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Gemini 3.8 Flash is 18% cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix. GPT-6.1 Terra scores higher on the Artificial Analysis Intelligence Index (51.3 vs 30.8). GPT-6.1 Terra has the larger context window (1.1M vs 1M).
| Gemini 3.8 Flash | GPT-6.1 Terra | |
|---|---|---|
| Input price / 1M | $0.82 | $1.00 |
| Output price / 1M | $4.13 | $5.00 |
| Blended price (3:1) | $1.65 | $2.00 |
| Cached input / 1M | $0.0825 | $0.05 |
| Context window | 1M | 1.1M |
| Max output | 66K | 128K |
| Intelligence index | 30.8 | 51.3 |
| Coding index | 76.3 | — |
| Providers | 7 | 7 |
| Best provider uptime (30m) | 100.0% | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-02 | 2026-10-26 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Gemini 3.8 Flash or GPT-6.1 Terra?
Gemini 3.8 Flash is 18% cheaper than GPT-6.1 Terra on a typical 3:1 input/output mix.
Gemini 3.8 Flash vs GPT-6.1 Terra: which has a bigger context window?
Gemini 3.8 Flash: 1,048,576 tokens. GPT-6.1 Terra: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 3.8 Flash ≈ $3,713, GPT-6.1 Terra ≈ $4,500.
More comparisons
Gemini 3.8 Flash vs Gemini 4 CarbonGemini 3.8 Flash vs Claude Fable 5.2Gemini 3.8 Flash vs Gemini Omni 1.2 FlashGemini 3.8 Flash vs Gemini Omni 1.1 FlashGemini 3.8 Flash vs Hy4Gemini 3.8 Flash vs GLM 5.3 FlashX LegalGemini 3.8 Flash vs GPT-6.1 Terra ProGemini 3.8 Flash vs Kimi K3.1 ProGemini 3.8 Flash vs MiniMax M3.1 FlashGemini 3.8 Flash vs DeepSeek V4.1 Flash 1017Gemini 3.8 Flash vs Nemotron 3.5 Super VLGemini 3.8 Flash vs Gemini 4 ArgonGemini 3.8 Flash vs Claude Haiku 5.5Gemini 3.8 Flash vs Nano Banana 2.1Gemini 3.8 Flash vs Mistral Large 4Gemini 3.8 Flash vs GPT-6.1 Sol ProGPT-6.1 Terra vs Gemini 4 CarbonGPT-6.1 Terra vs Claude Fable 5.2GPT-6.1 Terra vs Gemini Omni 1.2 FlashGPT-6.1 Terra vs Gemini Omni 1.1 FlashGPT-6.1 Terra vs Hy4GPT-6.1 Terra vs GLM 5.3 FlashX LegalGPT-6.1 Terra vs GPT-6.1 Terra ProGPT-6.1 Terra vs Kimi K3.1 Pro