Gemini 3.5 Flash pricing
Google · list prices as of 2026-09-29
| Input | $1.50 per 1M tokens |
|---|---|
| Output | $9 per 1M tokens |
| Cached input (read) | $0.15 per 1M tokens |
| Batch / async | 50% off |
| Context window | 1.049M tokens |
| Longest answer | 66K tokens |
What a call costs
| Typical call | Input tokens | Output tokens | Per call | Per month at 1,000 a day |
|---|---|---|---|---|
| Chat reply | 1,000 | 300 | $0.0042 | $126.00 |
| Document summary | 6,000 | 400 | $0.0126 | $378.00 |
| Code change | 3,000 | 1,200 | $0.0153 | $459.00 |
No caching or batch discount. Your own prompt will differ: count it exactly below.
Price your own prompt on Gemini 3.5 FlashSimilarly priced models
- Gemini 2.5 Pro (Google): about the same
- GPT-5 (OpenAI): about the same
- GPT-5.1 (OpenAI): about the same
- GPT-4.1 (OpenAI): 1.0× more
- o3 (OpenAI): 1.0× more
Questions
How much does Gemini 3.5 Flash cost?
Gemini 3.5 Flash costs $1.50 per million input tokens and $9 per million output tokens, as of 2026-09-29.
How much is one Gemini 3.5 Flash call?
A call with 1,000 input tokens and a 300-token answer costs about $0.0042, or $126.00 a month at 1,000 calls a day.
How big is the Gemini 3.5 Flash context window?
1,048,576 tokens.