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Google: Gemini 3.1 Flash Lite Preview

Gemini 3.1 Flash Lite Preview is Google's multimodal offering that accepts text, images, video, audio, and file inputs. Its context window reaches 1,048,576 tokens, making it suited for long-document or multi-turn workloads. The model supports tool use and reasoning, though structured output support is unconfirmed from available data. At $0.25 per million input tokens and $1.50 per million output tokens, it sits in budget territory and may appeal to developers building high-volume pipelines who want multimodal flexibility without paying premium rates. The significant caveat is that no independent benchmark coverage currently exists, so its actual task performance relative to competitors is unproven. Buyers who need verified quality scores before committing should treat this as a model to monitor rather than one with an established track record.

Quality Score
100/100
price + capability + benchmarks
Input Price
$0.25
per 1M tokens
Output Price
$1.50
per 1M tokens
Context Window
1,048,576
tokens
Model ID
google/gemini-3.1-flash-lite-preview
Vendor
google
Released
March 2026
Tokenizer
Gemini
Input Modalities
text, image, video, file, audio
Output Modalities
text
Max Output
65,536 tokens
Tool Calling
✓ supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
✓ accepts images
Audio
✓ accepts audio
Moderated
no

What it costs in practice

Computed from the current $0.25/M input and $1.50/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out under $0.01
Classify 1,000 customer emails 500k in / 50k out $0.20
A month of a busy support chatbot 5M in / 2M out $4.25

Strong choice for

Category rankings

Where Google: Gemini 3.1 Flash Lite Preview places across the 4 categories it ranks in. How we rank →

#CategoryScore
#5 TranscriptionVoice · of 22 ranked 123
#11 TTS ReplacementVoice · of 22 ranked 115
#16 Audio SummarizationVoice · of 22 ranked 139
#18 Video Auto-TaggingVideo · of 25 ranked 123

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Quick answers

How much does Google: Gemini 3.1 Flash Lite Preview cost?
$0.25 per million input tokens and $1.50 per million output tokens.
What is Google: Gemini 3.1 Flash Lite Preview's context window?
1,048,576 tokens, roughly 1,572 pages of text in a single request.
Does Google: Gemini 3.1 Flash Lite Preview support tool calling?
It supports tool calling, structured output, a reasoning mode.
Can Google: Gemini 3.1 Flash Lite Preview process images?
Yes, it accepts image input.