Gemini 3.1 Flash-Lite vs Gemini 3 Pro
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Gemini 3.1 Flash-Lite
Google · Mar 2026
The cheapest Gemini 3 model: multimodal input and a 1M context for $0.25/$1.50 — built for massive-scale pipelines.
Gemini 3 Pro
73.6Google · Nov 2025
Google's November 2025 frontier breakout — 91.9% GPQA Diamond and 37.5% HLE made it the reasoning leader of its generation.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: Gemini 3.1 Flash-Lite works out roughly 8.0x cheaper per blended million tokens.
Specs & pricing
| Gemini 3.1 Flash-Lite | Gemini 3 Pro | |
|---|---|---|
| modhub Index | — | 73.6 |
| Input price / 1M | $0.25 | $2 |
| Output price / 1M | $1.5 | $12 |
| Context window | 1M | 1M |
| Max output | 66K | 66K |
| Open weights | no | no |
| Reasoning model | no | yes |
| Multimodal input | text, image, audio, video | text, image, audio, video |
| Knowledge cutoff | Nov 2025 | Jan 2025 |
| Released | Mar 2026 | Nov 2025 |
| Example monthly cost* | $4.75 | $38.00 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Gemini 3.1 Flash-Lite or Gemini 3 Pro?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. On price the gap is dramatic: Gemini 3.1 Flash-Lite works out roughly 8.0x cheaper per blended million tokens.
- Which is cheaper, Gemini 3.1 Flash-Lite or Gemini 3 Pro?
- Gemini 3.1 Flash-Lite costs $0.25/$1.5 per million input/output tokens, while Gemini 3 Pro costs $2/$12. For a typical workload of 10M input and 1.5M output tokens per month, that's $4.75 versus $38.00.
- Which model is better for coding, Gemini 3.1 Flash-Lite or Gemini 3 Pro?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.
More comparisons
Gemini 3.1 Flash-Lite vs GPT-5.5Gemini 3 Pro vs GPT-5.5Gemini 3.1 Flash-Lite vs GPT-5.2Gemini 3 Pro vs GPT-5.2Gemini 3.1 Flash-Lite vs GPT-5.1Gemini 3 Pro vs GPT-5.1Gemini 3.1 Flash-Lite vs GPT-5Gemini 3 Pro vs GPT-5Gemini 3.1 Flash-Lite vs GPT-5 miniGemini 3 Pro vs GPT-5 miniGemini 3.1 Flash-Lite vs OpenAI o3Gemini 3 Pro vs OpenAI o3