Gemini 3.1 Flash-Lite vs Gemini 3.1 Pro
Gemini 3.1 Flash-Lite (Google) and Gemini 3.1 Pro (Google DeepMind) compared on benchmarks, pricing, context window, and use-case rankings.
- Gemini 3.1 Pro leads on overall intelligence (ECI 155 vs 144).
- Gemini 3.1 Pro ranks higher for coding (65th vs 28th percentile).
| Attribute | Gemini 3.1 Flash-Lite | Gemini 3.1 Pro |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 144 | 155 |
| Coding | 28 | 65 |
| Math | — | 74 |
| Reasoning & Knowledge | 32 | 94 |
| Agentic & Tools | 14 | 83 |
| Specifications | ||
| Developer | Google DeepMind | |
| Family | Gemini | Gemini |
| Released | Mar 3, 2026 | Feb 19, 2026 |
| Parameters | — | — |
| Availability | API access | API access |
| Context window | 1M | — |
| Price — $/M input | $0.25 | — |
| Price — $/M output | $1.50 | — |
| Inputs | text, image, video, file, audio | — |
| Outputs | text | — |
| Benchmarks | ||
| APEX | 13% | 34% |
| GPQA Diamond | 82% | 94% |
| Humanity's Last Exam | 9% | 46% |
| SciCode | 42% | — |
| WebDev Arena | 1248 | 1461 |
| WeirdML | 52% | 72% |
| τ²-bench | 31% | — |
| AIME 2024/2025 | — | 96% |
| ARC-AGI | — | 98% |
| ARC-AGI-2 | — | 77% |
| FrontierMath | — | 37% |
| FrontierMath Tier 4 | — | 17% |
| GSO (code optimization) | — | 23% |
| METR task horizon | — | 6.4 h |
| SimpleBench | — | 80% |
| SimpleQA Verified | — | 77% |
| SWE-bench Verified | — | 76% |
| Terminal-Bench | — | 80% |
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Is Gemini 3.1 Flash-Lite better than Gemini 3.1 Pro?
On Epoch AI's Capabilities Index, Gemini 3.1 Pro scores higher (155) than Gemini 3.1 Flash-Lite (144). The right pick depends on your task — compare their coding, math, and reasoning scores in the table above.
Which is better for coding, Gemini 3.1 Flash-Lite or Gemini 3.1 Pro?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, Gemini 3.1 Pro ranks higher — 65th vs 28th percentile among the models tracked on Model Beat.
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Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.