AiGanakGemini 3.8 Flash API pricing
Gemini 3.8 Flash costs $0.75 per million input tokens and $3.75 per million output tokens at Google's standard list price, checked 26 October 2026. It rises to $1.50 and $7.50 on 1 January 2027. One typical support answer costs about $0.00367.
Gemini 3.8 Flash (Google) costs $0.75 input, $0.075 cached input and $3.75 output per million tokens at standard list price, checked 26 October 2026. Batch: $0.375 input and $1.88 output. From 1 January 2027 the price rises to $1.50 input and $7.50 output. A typical support answer costs $0.00367.
Gemini 3.8 Flash price per million tokens
Model ID gemini-3.8-flash. Source: Google's pricing page, checked 26 October 2026. AiGanak re-checks every price weekly.
| Standard | Batch | From 1 January 2027 | |
|---|---|---|---|
| Input | $0.75 | $0.375 | $1.50 |
| Cached input | $0.075 | $0.0375 | $0.15 |
| Output | $3.75 | $1.88 | $7.50 |
- Batch requests return within 24 hours at the batch rate.
What Gemini 3.8 Flash costs per request
Token counts are stated so you can check the arithmetic.
| Task | Tokens | Per request | Per 1,000 | $100 buys |
|---|---|---|---|---|
| Chat reply | 2,000 input tokens, none cached, 300-token reply | $0.00263 | $2.63 | 38,095 |
| Support answer | 6,000 input tokens (4,000 cached instructions and help text), 500-token answer | $0.00367 | $3.67 | 27,210 |
| Document summary | 20,000-token document, no caching, 800-token summary | $0.018 | $18.00 | 5,555 |
Gemini 3.8 Flash compared with similar models
Cost of the same support answer (6,000 input tokens (4,000 cached instructions and help text), 500-token answer). Cheaper is not better unless quality holds on your own examples.
| Model | Input / output per 1M | Support answer | vs Gemini 3.8 Flash |
|---|---|---|---|
| Gemini 3.8 Flash | $0.75 / $3.75 | $0.00367 | — |
| GPT-6.1 Terra | $1 / $5 | $0.00470 | 28% dearer |
| GPT-6.1 Sol | $2 / $10 | $0.00940 | 156% dearer |
| Claude Sonnet 5.5 | $2 / $10 | $0.00940 | 156% dearer |
See every model on one page in the LLM Price Index, or upload your bill to the free LLM Bill Analyzer to see what Gemini 3.8 Flash costs you and what you could save.
Gemini 3.8 Flash pricing questions
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How much does Gemini 3.8 Flash cost per million tokens?
Gemini 3.8 Flash costs $0.75 input, $0.075 cached input and $3.75 output per million tokens at Google's standard list price, checked 26 October 2026. Batch processing costs $0.375 input and $1.88 output per million tokens.
How much does one request cost on Gemini 3.8 Flash?
A support answer with 6,000 input tokens (4,000 of them cached) and a 500-token reply costs about $0.00367, or $3.67 per 1,000 answers, at standard list prices.
Is Gemini 3.8 Flash getting more expensive?
Yes. Google's pricing page lists $0.75 input and $3.75 output until 31 December 2026, then $1.50 and $7.50 per million tokens from 1 January 2027.
What is a cheaper alternative to Gemini 3.8 Flash?
Among mid models from OpenAI, Anthropic and Google, GPT-6.1 Terra is the cheapest for the same support answer at $0.00470 per request, against $0.00367 on Gemini 3.8 Flash. Test quality on your own examples before switching.
Get an email when Gemini 3.8 Flash or any other LLM price changes
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