Gemini 3 Flash API pricing — cost per million tokens
Google's Gemini 3 Flash costs $0.5 per million input tokens and $3 per million output tokens on the standard API tier (verified 2026-09-02). Compare it in the full pricing table or price your own prompts in the token cost calculator.
Gemini 3 Flash price per million tokens
| direction | $ / Mtok | $ / 1K tokens |
|---|---|---|
| input (prompt) | $0.5 | $0.0005 |
| output (completion) | $3 | $0.003 |
What real requests cost on Gemini 3 Flash
| workload | input | output | total |
|---|---|---|---|
| Chat message (1K in / 500 out) | $0.0005 | $0.0015 | $0.002 |
| Long document (100K in / 2K out) | $0.05 | $0.006 | $0.056 |
| Agent session (500K in / 50K out) | $0.25 | $0.15 | $0.40 |
How Gemini 3 Flash pricing compares
On the same chat-message workload, Gemini 3 Flash costs 2.5× 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/Mtok, a 50K-token agent transcript costs $0.15 in output alone. Official rate card: Google pricing.
Related: Gemini 3.7 Flash pricing · Gemini 2.5 Flash pricing · GPT-5.6 Luna pricing · release timeline
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