gemini-3.5-flash API pricing
Google Gemini charges $1.5 per million input tokens and $9 per million output tokens for gemini-3.5-flash, and $0.15 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.006, or $0.003 through the batch API.
Prices updated October 28, 2026
Input / 1M tokens
$1.5
Output / 1M tokens
$9
Cached input / 1M tokens
$0.15
Typical request
$0.006
gemini-3.5-flash price per million tokens
| Token type | Standard | Batch API |
|---|---|---|
| Input | $1.5 | $0.75 |
| Cached input | $0.15 | $0.075 |
| Output | $9 | $4.5 |
gemini-3.5-flash supports a 1.05M-token context window, up to 65.5K output tokens, image input, tool calling and reasoning.
What gemini-3.5-flash costs per request
| Request | 1 request | 1,000 requests | 1M requests |
|---|---|---|---|
| Short chat message (300 in, 200 out) | $0.00225 | $2.25 | $2,250.00 |
| Typical request (1K in, 500 out) | $0.006 | $6.00 | $6,000.00 |
| Long document summary (20K in, 1K out) | $0.039 | $39.00 | $39,000.00 |
| Coding agent step (50K in, 2K out) | $0.093 | $93.00 | $93,000.00 |
At standard rates. A token is about 4 characters of English text, so 1,000 tokens is roughly 750 words. Google Gemini counts tokens with its own tokenizer, so the same text can be a different number of tokens.
Models with a similar price
| Model | Provider | Input / 1M | Cached input / 1M | Output / 1M | Typical request |
|---|---|---|---|---|---|
| mistral-medium | Mistral | $1.5 | $0.15 | $7.5 | $0.00525 |
| mistral-medium-3 | Mistral | $1.5 | $0.15 | $7.5 | $0.00525 |
| gpt-4.1 | OpenAI | $2 | $0.5 | $8 | $0.006 |
| o3 | OpenAI | $2 | $0.5 | $8 | $0.006 |
| gemini-omni-1.1-flash | Google Gemini | $1.5 | – | $9 | $0.006 |
| gpt-5 | OpenAI | $1.25 | $0.125 | $10 | $0.00625 |
| gpt-5.1 | OpenAI | $1.25 | $0.125 | $10 | $0.00625 |
| gemini-2.5-pro | Google Gemini | $1.25 | $0.125 | $10 | $0.00625 |
Other Google Gemini models
- gemini-2.5-flash $0.3 / $2.5
- gemini-2.5-flash-lite $0.1 / $0.4
- gemini-2.5-pro $1.25 / $10
- gemini-3-flash-preview $0.5 / $3
- gemini-3.1-flash-lite $0.25 / $1.5
- gemini-3.1-pro-preview $2 / $12
- gemini-3.5-flash-lite $0.3 / $2.5
- gemini-3.6-flash $0.75 / $3.75
- gemini-3.7-flash $0.75 / $3.75
- gemini-3.8-flash $0.75 / $3.75
- gemini-4-argon $2 / $10
- gemini-omni-1.1-flash $1.5 / $9
Source: Google Gemini pricing.