Gemini 2.5 Flash API pricing — cost per million tokens
Google's Gemini 2.5 Flash costs $0.3 per million input tokens and $2.5 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 2.5 Flash price per million tokens
| direction | $ / Mtok | $ / 1K tokens |
|---|---|---|
| input (prompt) | $0.3 | $0.0003 |
| output (completion) | $2.5 | $0.0025 |
What real requests cost on Gemini 2.5 Flash
| workload | input | output | total |
|---|---|---|---|
| Chat message (1K in / 500 out) | $0.0003 | $0.00125 | $0.00155 |
| Long document (100K in / 2K out) | $0.03 | $0.005 | $0.035 |
| Agent session (500K in / 50K out) | $0.15 | $0.13 | $0.28 |
How Gemini 2.5 Flash pricing compares
On the same chat-message workload, Gemini 2.5 Flash costs 1.9× 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 $2.5/Mtok, a 50K-token agent transcript costs $0.13 in output alone. Official rate card: Google pricing.
Related: Gemini 3 Flash pricing · Gemini 3.7 Flash pricing · GPT-5.6 Luna pricing · release timeline
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