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.
- Model ID
- google/gemini-3.1-flash-lite-preview
- Vendor
- 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 →
| Job | Tokens | Cost |
|---|---|---|
| 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 →
| # | Category | Score |
|---|---|---|
| #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 |
Similar models
Google: Gemini 3.6 Flash
Google: Gemini 3.5 Flash Lite
Google: Gemini 3.5 Flash
Google: Gemini 3.1 Flash Lite
Google: Gemma 4 26B A4B
Google: Gemma 4 26B A4B (free)
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.