Is Gemini 3.1 Flash Lite Preview available on FastMetal?

Not at the moment. GLM 5.3 Flash, from the same lab, is available on the FastMetal API today.

What is the context window of Gemini 3.1 Flash Lite Preview?

1,048,576 tokens, shared between the prompt and the response.

google/gemini-3-1-flash-lite-preview

Not Available

Gemini 3.1 Flash Lite Preview

Gemini 3.1 Flash Lite Preview is Google's high-efficiency model optimized for high-volume use cases. It outperforms Gemini 2.5 Flash Lite on overall quality and approaches Gemini 2.5 Flash performance across key capabilities. Improvements span audio input/ASR, RAG snippet ranking, translation, data extraction, and code completion. Supports full thinking levels (minimal, low, medium, high) for fine-grained cost/performance trade-offs. Priced at half the cost of Gemini 3 Flash.

3/3/2026

1,048,576 tokens

Specifications

Modalities

Input

text

image

video

file

audio

Output

text

Supported Parameters

include_reasoning

max_tokens

reasoning

response_format

seed

stop

structured_outputs

temperature

tool_choice

tools

top_p

Max Output Tokens

65,536

Reasoning Configuration

Default: Thinking on (effort: minimal)
Selectable effort levels: high
medium
low
minimal
Turning thinking off: Possible (reasoning.enabled: false)

How to control thinking, and what it costs

Frequently asked questions

Is Gemini 3.1 Flash Lite Preview available on FastMetal?: Not at the moment. GLM 5.3 Flash, from the same lab, is available on the FastMetal API today.
What is the context window of Gemini 3.1 Flash Lite Preview?: 1,048,576 tokens, shared between the prompt and the response.

Models you can use on FastMetal