Gemini 3.5 Flash vs Gemini Flash Lite
Detailed comparison of API pricing, technical specifications, and benchmark scores. Updated 2026-06-29.
Cost at a Glance
Gemini 3.5 Flash is 3.3× more expensive than Gemini Flash Lite — switching could save 69.4% on your monthly API bill.
At 5M input + 2M output tokens per month:
Choosing Gemini Flash Lite could save you $2.95/mo
Price Comparison (per 1M tokens)
| Metric | Gemini 3.5 Flash | Gemini Flash Lite |
|---|---|---|
| Input (per 1M tokens) | $0.25 | $0.10 |
| Output (per 1M tokens) | $1.50 | $0.40 |
| Cache Write (per 1M tokens) | — | — |
| Cache Read (per 1M tokens) | $0.03 | $0.01 |
| Batch Input (per 1M tokens) | — | — |
| Batch Output (per 1M tokens) | — | — |
Prices are per 1 million tokens. Actual costs depend on your monthly token volume. Use the calculator →
Specifications
| Spec | Gemini 3.5 Flash | Gemini Flash Lite |
|---|---|---|
| Context Window | 1M | 1M |
| Max Output Tokens | 64K | 64K |
| Knowledge Cutoff | 2026-04 | 2026-04 |
| Modalities | Text, Image | Text |
| Prompt Caching | Yes | Yes |
| Batch API | No | No |
| Thinking / Reasoning | No | No |
Benchmark Scores
| Benchmark | Gemini 3.5 Flash | Gemini Flash Lite |
|---|---|---|
| SWE-bench Verified | 65.0 | 45.0 |
| MMLU-Pro | 80.0 | 72.0 |
| HumanEval | 90.0 | 82.0 |
Benchmark scores from official provider reports. Higher is better. Missing scores indicate the provider has not published that benchmark yet.
Use Cases
Gemini 3.5 Flash
Gemini Flash Lite
About the Providers
Gemini 3.5 Flash is developed by Google. Gemini Flash Lite is developed by Google. Both models are from the same provider, representing different tiers in the Google model lineup. For the most up-to-date pricing, always check the official API documentation from each provider.