AiGanakGemini 3.1 Flash-Lite API pricing
Gemini 3.1 Flash-Lite costs $0.25 per million input tokens and $1.50 per million output tokens at Google's standard list price, checked 26 October 2026. One typical support answer costs about $0.00135.
Gemini 3.1 Flash-Lite (Google) costs $0.25 input, $0.025 cached input and $1.50 output per million tokens at standard list price, checked 26 October 2026. Batch: $0.125 input and $0.75 output. A typical support answer costs $0.00135.
Gemini 3.1 Flash-Lite price per million tokens
Model ID gemini-3.1-flash-lite. Source: Google's pricing page, checked 26 October 2026. AiGanak re-checks every price weekly.
| Standard | Batch | |
|---|---|---|
| Input | $0.25 | $0.125 |
| Cached input | $0.025 | $0.0125 |
| Output | $1.50 | $0.75 |
- Batch requests return within 24 hours at the batch rate.
What Gemini 3.1 Flash-Lite 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 | $0.00095 | $0.950 | 105,263 |
| Support answer | 6,000 input tokens (4,000 cached instructions and help text), 500-token answer | $0.00135 | $1.35 | 74,074 |
| Document summary | 20,000-token document, no caching, 800-token summary | $0.00620 | $6.20 | 16,129 |
Gemini 3.1 Flash-Lite 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 3.1 Flash-Lite |
|---|---|---|---|
| GPT-6 Luna | $0.1 / $0.5 | $0.00049 | 64% cheaper |
| Claude Haiku 5.5 | $0.1 / $0.5 | $0.00049 | 64% cheaper |
| Gemini 3.1 Flash-Lite | $0.25 / $1.50 | $0.00135 | — |
| Gemini 3.5 Flash-Lite | $0.3 / $2.50 | $0.00197 | 46% 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 3.1 Flash-Lite costs you and what you could save.
Gemini 3.1 Flash-Lite pricing questions
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How much does Gemini 3.1 Flash-Lite cost per million tokens?
Gemini 3.1 Flash-Lite costs $0.25 input, $0.025 cached input and $1.50 output per million tokens at Google's standard list price, checked 26 October 2026. Batch processing costs $0.125 input and $0.75 output per million tokens.
How much does one request cost on Gemini 3.1 Flash-Lite?
A support answer with 6,000 input tokens (4,000 of them cached) and a 500-token reply costs about $0.00135, or $1.35 per 1,000 answers, at standard list prices.
Is Gemini 3.1 Flash-Lite getting more expensive?
No price change was announced on Google's pricing page when AiGanak checked it on 26 October 2026. AiGanak re-checks prices weekly and emails alerts when one changes.
What is a cheaper alternative to Gemini 3.1 Flash-Lite?
Among small models from OpenAI, Anthropic and Google, GPT-6 Luna is the cheapest for the same support answer at $0.00049 per request, against $0.00135 on Gemini 3.1 Flash-Lite. Test quality on your own examples before switching.
Get an email when Gemini 3.1 Flash-Lite or any other LLM price changes
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