text model comparison
Gemini 3.1 Flash-Lite vs Gemini 3.1 Pro Preview
Gemini 3.1 Flash-Lite and Gemini 3.1 Pro Preview are both current text models, from Google. On GPQA Diamond, Gemini 3.1 Flash-Lite scores 81.8% and Gemini 3.1 Pro Preview 94.4% (Epoch AI, measured October 12, 2026). Both accept 1,048,576 tokens of context.
Data verified October 12, 2026 · Dataset 2026-10-12
Side by side
Standard-tier prices in effect today. The better value in each row is highlighted.
| Fact | Gemini 3.1 Flash-Lite | Gemini 3.1 Pro Preview |
|---|---|---|
| Price per 1M input tokens | $0.25 | Not reported |
| Price per 1M output tokens | $1.50 | Not reported |
| GPQA Diamond | 81.8% (#33 of 37) | 94.4% (#6 of 37) (better) |
| FrontierMath Tiers 1-3 (v2) | 27.7% (#33 of 37) | 59.6% (#26 of 37) (better) |
| Arena Text | Not measured | 1487 Elo (#8 of 39) |
| SimpleQA Verified | Not measured | 73.5% (#3 of 34) |
| Provider | ||
| Release date | May 7, 2026 | February 19, 2026 |
| Access | API only | API only |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Max output | 65,536 tokens | 65,536 tokens |
| Input | text, image, audio, video | text, image, audio, video |
| Output | text | text |
When to choose each
Gemini 3.1 Flash-Lite
Best for
- High-volume multimodal extraction and translation
Watch out for
- The published price for audio input differs from the listed text, image, and video input price
- Google's earliest published shutdown date is 2027-05-07; migrate to gemini-3.5-flash-lite.
Gemini 3.1 Pro Preview
Best for
- Multimodal reasoning and agentic coding evaluations
Watch out for
- This preview endpoint may change before becoming stable; production use should account for its published prompt-length price tiers
Gemini 3.1 Flash-Lite vs Gemini 3.1 Pro Preview FAQ
Which scores higher on independent benchmarks, Gemini 3.1 Flash-Lite or Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview leads on GPQA Diamond, 94.4% to 81.8%; Gemini 3.1 Pro Preview leads on FrontierMath Tiers 1-3 (v2), 59.6% to 27.7%. Scores are independent evaluations, not either vendor's launch figures.
Which has the larger context window, Gemini 3.1 Flash-Lite or Gemini 3.1 Pro Preview?
Both accept 1,048,576 tokens of context.
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Production evaluation
Choosing between Gemini 3.1 Flash-Lite and Gemini 3.1 Pro Preview?
Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- A head-to-head evaluation on your real workload
- Routing between models by cost and difficulty