Gemini 3.8 Flash cost calculator
Monthly cost of Gemini structured output (Vertex AI / Agent Platform) at 10k to 10M requests, worked out from its list price of $0.75 in / $3.75 out per 1M tokens.
Classification500 in · 5 out tokens
| Requests / month | Gemini 3.8 Flash (introductory) |
|---|---|
| 10k | $3.94 |
| 100k | $39.38 |
| 1M | $394 |
| 10M | $3,938 |
Formula: 1,000,000 requests × (500 in × $0.75 + 5 out × $3.75) ÷ 1,000,000
Chatbot turn1,000 in · 300 out tokens
| Requests / month | Gemini 3.8 Flash (introductory) |
|---|---|
| 10k | $18.75 |
| 100k | $188 |
| 1M | $1,875 |
| 10M | $18,750 |
Formula: 1,000,000 requests × (1,000 in × $0.75 + 300 out × $3.75) ÷ 1,000,000
Agent loop step4,000 in · 500 out tokens
| Requests / month | Gemini 3.8 Flash (introductory) |
|---|---|
| 10k | $48.75 |
| 100k | $488 |
| 1M | $4,875 |
| 10M | $48,750 |
Formula: 1,000,000 requests × (4,000 in × $0.75 + 500 out × $3.75) ÷ 1,000,000
Price notes
- Gemini structured output (Vertex AI) · Gemini 3.8 Flash (introductory). Introductory price through 2026-12-31; standard $1.50 / $7.50 per 1M from 2027-01-01. The response schema counts toward input tokens.
- List prices before free allowances and taxes. Presets are our assumptions, not vendor figures.
FAQ
How much does Gemini 3.8 Flash cost per month?
At $0.75 in / $3.75 out per 1M tokens (Gemini 3.8 Flash (introductory)), 1M chatbot-size requests (1,000 input, 300 output tokens) cost $1,875 a month, and 100k classification requests cost $39.38. Prices verified 2026-10-17.
Does Gemini 3.8 Flash have a free tier?
No free allowance is listed with the price we checked; the tables show list prices.
How is the cost calculated?
1,000,000 requests × (1,000 in × $0.75 + 300 out × $3.75) ÷ 1,000,000 = $1,875 for 1M chatbot requests. Change requests and tokens in the calculator to match your workload.
SourcesPricing pages
- 1Gemini structured output (Vertex AI) pricingcloud.google.com/vertex-ai/generative-ai/pricingVerified 2026-10-17