Gemini 3.1 Flash-Lite Preview vs Gemini 3 Pro
Compare Google and Google AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Gemini 3.1 Flash-Lite Preview
Gemini 3 Pro
Cost Differences
Gemini 3 Pro costs more than Gemini 3.1 Flash-Lite Preview
Feature Comparison
| Feature | Gemini 3.1 Flash-Lite Preview | Gemini 3 Pro |
|---|---|---|
| Provider | ||
| Input Price | $0.25/1M tokens | $2.00/1M tokens |
| Output Price | $1.50/1M tokens | $12.00/1M tokens |
| Context Window | 1,000,000 tokens | 2,000,000 tokens |
| Max Output | 8,192 tokens | 131,072 tokens |
| Category | efficient | flagship |
| Capabilities | textvisioncode | textvisionaudiovideocode |
| Release Date | 3/3/2026 | 11/18/2025 |
Gemini 3.1 Flash-Lite Preview vs Gemini 3 Pro: Which Should You Choose?
Choosing between Gemini 3.1 Flash-Lite Preview and Gemini 3 Pro depends on your priorities: cost efficiency, context length, or raw capability. Gemini 3.1 Flash-Lite Preview is the more affordable option at $0.25/1M input tokens — 88% cheaper than Gemini 3 Pro. Meanwhile, Gemini 3 Pro offers a significantly larger context window at 2,000,000 tokens vs 1,000,000 for Gemini 3.1 Flash-Lite Preview.
These models target different tiers: Gemini 3.1 Flash-Lite Preview is a efficient model while Gemini 3 Pro is flagship. This means they're optimized for different workloads. Gemini 3 Pro targets more demanding workloads, while Gemini 3.1 Flash-Lite Preview provides a cost-effective option for everyday tasks.
Output costs matter too. Gemini 3.1 Flash-Lite Preview charges $1.50/1M output tokens vs $12.00 for Gemini 3 Pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Gemini 3.1 Flash-Lite Preview has the edge here at $1.50/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose Gemini 3.1 Flash-Lite Preview when:
- • Budget is a primary concern
- • You're already using Google's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Choose Gemini 3 Pro when:
- • You need a larger context window (2,000,000 tokens)
- • You need more capabilities (audio, video)
- • You need longer outputs (up to 131,072 tokens)
- • You're already using Google's API ecosystem
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Gemini 3.1 Flash-Lite Preview (Google)
Gemini 3 Pro (Google)
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