Model comparison
Gemini 3.5 Flash-Lite vs Gemini 3.1 Flash-Lite
- Input
- $0.30
- Output
- $2.50
- Context
- 1M
- Released
- 2026-07-21
- Input
- $0.25
- Output
- $1.50
- Context
- 1M
- Released
- 2026-03-03
Gemini 3.1 Flash-Lite is cheaper on input tokens ($0.3 vs $0.3 per 1M, 1.2×).
Specs and pricing side by side
| Spec | Gemini 3.5 Flash-Lite | Gemini 3.1 Flash-Lite |
|---|---|---|
| Maker | Googlesame | |
| Released | 2026-07-21 | 2026-03-03 |
| Context window | 1M | 1Msame |
| Max output | 64K | 64Ksame |
| Input price | $0.30 | $0.25 |
| Output price | $2.50 | $1.50 |
| Parameters | Not disclosed | Undisclosed |
| License | Proprietary | Proprietarysame |
| Weights | API only | API onlysame |
| Modalities | Text, Vision, Audio, Video, PDF | Text, Vision, Audio, Video |
| Knowledge cutoff | March 2026 | Jan 2025 |
Benchmarks both models report
These two models have no benchmark in common in our registry, so there is no like-for-like score to compare. See each model’s own results: Gemini 3.5 Flash-Lite, Gemini 3.1 Flash-Lite.
Which one should you pick?
Pick Gemini 3.5 Flash-Lite if…
- You need PDF input, which Gemini 3.1 Flash-Lite lacks.
- Your use case is: reach for it as the default cheap tier for high-volume translation, classification, and tagging.
Pick Gemini 3.1 Flash-Lite if…
- Cost matters: input tokens cost 1.2× less ($0.3 vs $0.3 per 1M).
- Your use case is: reach for it for high-volume, cost-sensitive workloads like translation, classification, and tagging.
FAQ
Which is better, Gemini 3.5 Flash-Lite or Gemini 3.1 Flash-Lite?
Gemini 3.1 Flash-Lite is cheaper on input tokens ($0.3 vs $0.3 per 1M, 1.2×). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is Gemini 3.1 Flash-Lite?
Gemini 3.5 Flash-Lite: $0.30 input, $2.50 output. Gemini 3.1 Flash-Lite: $0.25 input, $1.50 output (list API prices as published by each maker).
What are the context windows of Gemini 3.5 Flash-Lite and Gemini 3.1 Flash-Lite?
Gemini 3.5 Flash-Lite offers 1M with up to 64K output; Gemini 3.1 Flash-Lite offers 1M with up to 64K output.
Is Gemini 3.5 Flash-Lite newer than Gemini 3.1 Flash-Lite?
Gemini 3.5 Flash-Lite was released 2026-07-21; Gemini 3.1 Flash-Lite was released 2026-03-03.
Go deeper
- Gemini 3.5 Flash-Lite: full specs, pricing and benchmarks
- Gemini 3.1 Flash-Lite: full specs, pricing and benchmarks
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