Gemini 3.1 Flash Lite
GeminiCompact
ThinkingTool UseVisionStructured Output
About this model
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.
Performance Tier
Compact
Gemini 3.1 Flash Lite is a compact model from Gemini : optimized for speed and affordability.
Small, fast, and affordable. Optimized for speed and low cost, great for high-volume or simple tasks.
Pricing
This model is included in Elosia plans| Type | per 1M tokens |
|---|---|
| Input (prompt) | $0.250 |
| Output (completion) | $1.50 |
| Image | $0.250 |
| Internal reasoning | $1.50 |
| Cache read | $0.025 |
| Cache write | $0.083 |
Capabilities
Context Length1.0M
Max Output Tokens66K
TokenizerGemini
Inputtext, image, video, file, audio
Outputtext
Release DateMarch 3, 2026
Benchmarks
General Intelligence
MMLU
88.9%
GPQA Diamond
86.9%
Mathematics
MATH-500
Not reported
Programming
HumanEval
Not reported
Reasoning
Humanity's Last Exam
16%
Multimodal
MMMU-Pro
76.8%
Recommended Use Cases
General ChatSummarizationData ExtractionCustomer SupportTranslation
Strengths
- Ultra-fast inference (~389 tokens/s) at half the cost of Flash
- 1M token context window with full multimodal input (text, image, video, audio)
- Strong general knowledge (MMLU 88.9%) for a lite model
- Built-in thinking mode with configurable depth
Limitations
- Preview model — behavior may change
- Complex reasoning significantly weaker than Flash base (HLE 16% vs 43.5%)
- Poor long-context performance at 1M tokens (MRCR 12.3%)
Resources
This model may use your data for training
