Gemini 3.1 Flash-Lite

Q: What is the API model name for Gemini 3.1 Flash-Lite?

Use gemini-3.1-flash-lite in API calls to Google. The context window is 1.05M tokens, and a response can run to 65,536 output tokens.

Gemini 3.1 Flash-Lite API cost is $0.25 per million input tokens and $1.50 per million output tokens.

Provider: Google
API model name: gemini-3.1-flash-lite
Status: Previous generation
Input, $ per 1M tokens: $0.25
Cached input, $ per 1M tokens: $0.025
Output, $ per 1M tokens: $1.50
Sample request (10K in, 2K out), $: $0.0055
Context window, tokens: 1.05M
Price checked on: October 31, 2026
Official pricing page: ai.google.dev

The input rate covers text, image and video on Google’s own API at standard rates; audio input costs $0.50 per million tokens. Cached input is billed at $0.025 per million tokens. A request with 10,000 input tokens and 2,000 output tokens costs about $0.0055 before caching or batch discounts, less than the $0.008 of the newer Gemini 3.5 Flash-Lite. The API model name is gemini-3.1-flash-lite, and the context window is 1.05M tokens.

Max output, tokens: 65.54K
Input types: Text, image, video, audio, PDF
Open weights: No
Pricing notes: Audio input costs $0.50 per 1M tokens.
Sources: Page URL Checked
Gemini Developer API pricing https://ai.google.dev/gemini-api/docs/pricing 2026-10-19
OpenRouter model listing (context and output limits) https://openrouter.ai/models 2026-09-29

Page	URL	Checked
Gemini Developer API pricing	https://ai.google.dev/gemini-api/docs/pricing	2026-10-19
OpenRouter model listing (context and output limits)	https://openrouter.ai/models	2026-09-29

Questions

How much does the Gemini 3.1 Flash-Lite API cost?

Gemini 3.1 Flash-Lite costs $0.25 per million input tokens and $1.50 per million output tokens for text, image and video input on Google’s own API. Cached input costs $0.025 per million tokens.

What is the API model name for Gemini 3.1 Flash-Lite?

Use gemini-3.1-flash-lite in API calls to Google. The context window is 1.05M tokens, and a response can run to 65,536 output tokens.

What does one Gemini 3.1 Flash-Lite request cost?

A request with 10,000 input tokens and 2,000 output tokens costs about $0.0055 at standard rates, before caching or batch discounts.

Sources

Prices are read from each provider’s official pricing page: OpenAI, Anthropic, Google Gemini API, xAI, DeepSeek and Mistral AI. Context and output limits that a provider does not publish come from OpenRouter’s model listing. Each model’s Sources field lists the pages used and the date each was checked. How we check prices · Price change log