Gemini 3.1 Pro API pricing — what it really costs
Gemini 3.1 Pro (Google) costs $2 per 1M input tokens and $12 per 1M output tokens. Do 200K tokenow promptu; powyzej 2x cena. Prices verified 2026-07-05; we track the price you are actually billed today, including promotional rates.
Price per 1M tokens
| Input | Output | Cached input |
|---|---|---|
| $2 | $12 | — |
Real monthly costs on Gemini 3.1 Pro
Three realistic workloads, computed from the prices above (cached share billed at the cache-read rate where the provider offers one):
Customer-support chatbot
$10.00/mo
2M input + 0.5M output tokens/month, 60% of input served from prompt cache
RAG / document Q&A
$52.00/mo
20M input + 1M output tokens/month, 70% cached (shared context)
Agentic coding assistant
$160/mo
50M input + 5M output tokens/month, 80% cached (long sessions)
Want exact numbers for your usage? Open the calculator — same verified prices, your token volumes.
Compare Gemini 3.1 Pro
- Gemini 3.1 Pro vs Claude Sonnet 5 — which is cheaper?
- Gemini 3.1 Pro vs GPT-5.4 — which is cheaper?
- Gemini 3.1 Pro vs GPT-5.5 — which is cheaper?
- Gemini 3.1 Pro vs Gemini 3.5 Flash — which is cheaper?
- Gemini 3.1 Pro vs Gemini 2.5 Pro — which is cheaper?
FAQ
How much does the Gemini 3.1 Pro API cost?
Gemini 3.1 Pro costs $2 per 1M input tokens and $12 per 1M output tokens. Note: Do 200K tokenow promptu; powyzej 2x cena. Pricing verified 2026-07-05.
What does a typical workload cost on Gemini 3.1 Pro?
Customer-support chatbot: about $10.00/month (2M input + 0.5M output tokens/month, 60% of input served from prompt cache). RAG / document Q&A: about $52.00/month (20M input + 1M output tokens/month, 70% cached (shared context)). Agentic coding assistant: about $160/month (50M input + 5M output tokens/month, 80% cached (long sessions))
Is Gemini 3.1 Pro expensive compared to other models?
Gemini 3.1 Pro ranks #10 of 15 models by blended price in our comparison. The cheapest tracked model is DeepSeek V4 Flash at $0.140/$0.280 per 1M tokens.