AI Cost Calculator / Model pricing
Gemini 3.1 Pro costs $2.00 per 1M input tokens and $12.00 per 1M output tokens (list pricing as of 2026-08-15, sourced from Vertex Ai-language-models). See the full rate card below and project your monthly spend in the calculator.
| Input | $2.00 / 1M tokens |
| Output | $12.00 / 1M tokens |
| Cache read | $0.200 / 1M tokens |
| Cache write | Not published |
| Context window | 1,048,576 tokens |
| Max output | 65,536 tokens |
Official source: Google pricing page . Batch API discounts (typically 50%) are available via the calculator's Batch mode.
A chat app making 500 calls/day at 1.2K input + 400 output tokens spends roughly $108.00/mo on Gemini 3.1 Pro. Enter your real workload for an exact projection and to compare against other models.
Calculate Gemini 3.1 Pro monthly cost →| Model | Provider | Input /1M | Output /1M |
|---|---|---|---|
| Llama 3.3 70b Instruct Fp8 Fast | Meta | $0.293 | $2.25 |
| Minimax M2.1 | MiniMax | $0.300 | $1.20 |
| Llama 4 Maverick 17b | Meta | $0.350 | $1.40 |
| Deepseek V3 Turbo | DeepSeek | $0.400 | $1.30 |
| Claude Haiku 4 5 | Anthropic | $1.00 | $5.00 |