Gemini 3.7 Flash API pricing — cost per million tokens
Google's Gemini 3.7 Flash costs $0.75 per million input tokens and $3.75 per million output tokens on the standard API tier (verified 2026-09-02). Note: Introductory price through 2026-12-31; rises to $1.50 / $7.50 on 2027-01-01. Compare it in the full pricing table or price your own prompts in the token cost calculator.
Gemini 3.7 Flash price per million tokens
| direction | $ / Mtok | $ / 1K tokens |
|---|---|---|
| input (prompt) | $0.75 | $0.00075 |
| output (completion) | $3.75 | $0.00375 |
What real requests cost on Gemini 3.7 Flash
| workload | input | output | total |
|---|---|---|---|
| Chat message (1K in / 500 out) | $0.00075 | $0.00187 | $0.00262 |
| Long document (100K in / 2K out) | $0.075 | $0.0075 | $0.0825 |
| Agent session (500K in / 50K out) | $0.38 | $0.19 | $0.56 |
How Gemini 3.7 Flash pricing compares
On the same chat-message workload, Gemini 3.7 Flash costs 3.3× more than GPT-5.6 Luna (the cheapest tracked model) — capability, latency and context limits are the other side of that trade. Output tokens dominate long generations: at $3.75/Mtok, a 50K-token agent transcript costs $0.19 in output alone. Official rate card: Google pricing.
Related: Gemini 3 Flash pricing · Gemini 2.5 Flash pricing · GPT-5.6 Luna pricing · release timeline
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