Gemini 3.8 Flash vs Gemini 3.6 Flash: API cost
Standard, cached and batch API prices for Gemini 3.8 Flash (Google) and Gemini 3.6 Flash (Google), and what each costs for your usage.
Gemini 3.8 Flash and Gemini 3.6 Flash have the same standard input and output prices.
- Input $22.50
- Cached input $2.25
- Output $33.75
- Input $22.50
- Cached input $2.25
- Output $33.75
| Token type | Gemini 3.8 Flash | Gemini 3.6 Flash | |
|---|---|---|---|
| Input | $0.75 | $0.75 | Same price |
| Cached input | $0.075 | $0.075 | Same price |
| Output | $3.75 | $3.75 | Same price |
| Batch input | $0.375 | $0.375 | Same price |
| Batch cached input | $0.0375 | $0.0375 | Same price |
| Batch output | $1.875 | $1.875 | Same price |
Gemini 3.8 Flash: promotional price until Dec 31, 2026.
Gemini 3.6 Flash: promotional price until Dec 31, 2026.
| Workload | Gemini 3.8 Flash | Gemini 3.6 Flash |
|---|---|---|
Support chatbot 2,000 in / 300 out tokens,
1,000 requests a day, 50% cached | $58.50 | $58.50 |
Document summaries 10,000 in / 800 out tokens,
200 requests a day | $63.00 | $63.00 |
Tagging / classifying 400 in / 20 out tokens,
20,000 requests a day | $225.00 | $225.00 |
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- Gemini 3.8 Flash vs Gemini 3.5 Flash-Lite
Or see Gemini 3.8 Flash pricing, Gemini 3.6 Flash pricing, or compare any two models.
FAQ
Frequently asked questions
Is Gemini 3.8 Flash cheaper than Gemini 3.6 Flash?
Gemini 3.8 Flash and Gemini 3.6 Flash have the same standard input and output prices. Based on standard API rates last checked on Oct 18, 2026.
How much do Gemini 3.8 Flash and Gemini 3.6 Flash cost per million tokens?
Gemini 3.8 Flash: $0.75 per million input tokens and $3.75 per million output tokens. Gemini 3.6 Flash: $0.75 input and $3.75 output. These are standard rates in USD, before tax, from each provider’s own pricing page.
Which is cheaper with the Batch API?
Gemini 3.8 Flash’s batch rates are $0.375 input and $1.875 output per million tokens (50% off); Gemini 3.6 Flash’s batch rates are $0.375 input and $1.875 output per million tokens (50% off).
Does prompt caching change the comparison?
Gemini 3.8 Flash charges $0.075 per million cached input tokens, against $0.75 for normal input; Gemini 3.6 Flash charges $0.075 per million cached input tokens, against $0.75 for normal input. Cache write and storage charges are extra and aren’t included here.