Gemini 3.1 Flash-Lite — API Pricing & Benchmarks
Gemini 3.1 Flash-Lite is Google's previous-generation reasoning model, released in 2026-03. The API costs $0.25 per 1M input tokens and $1.50 per 1M output tokens ($0.56 blended at a 3:1 ratio), with cached input at $0.03. It supports a 1.0M-token context window. On the independently measured Artificial Analysis Intelligence Index it scores 25.6, ranking #50 of 68 models tracked on this site, with a median output speed of 276 tokens/sec.
Explore provider routes and additional benchmark sources for Gemini 3.1 Flash-Lite
| Provider | |
| Input price / 1M tokens | $0.25 |
| Output price / 1M tokens | $1.50 |
| Cached input / 1M tokens | $0.03 |
| Blended price (3:1) | $0.56 |
| Context window | 1.0M |
| Max output tokens | 66K |
| Knowledge cutoff | 2025-01 |
| License | proprietary |
| Input modalities | T+I+A+V |
| Output speed (tok/s) | 276 |
| Released | 2026-03 |
| Artificial Analysis Intelligence Index | 25.6 |
| LMArena Elo | 1415 |
| GPQA Diamond | 82.2% |
| Humanity's Last Exam | 17.2% |
Where Gemini 3.1 Flash-Lite fits
On a blended 3:1 basis Gemini 3.1 Flash-Lite costs $0.56 per 1M tokens, cheaper than 76% of the 80 priced models in this index. It is a previous-generation model: usually only worth choosing if you have an existing integration, negotiated pricing, or need its specific behavior, since newer siblings offer better price-performance. Measured output speed of 276 tokens/sec is well above the index median of 104, making it suitable for interactive, user-facing use. Cached input is priced at $0.03 (90% below standard input), which rewards prompt structures with long stable prefixes — see our caching guide.
Price history
| Period | Input $/1M | Output $/1M | Cached $/1M |
|---|---|---|---|
| 2026-07-18 → current | $0.25 | $1.50 | $0.03 |
No list-price changes recorded since tracking began. Full dataset: price-history.json (CC BY 4.0).
Alternatives at a similar price
- Qwen3.6-Flash (Alibaba Qwen) — $0.56/1M blended
- MiniMax M3 (MiniMax) — $0.52/1M blended, AA Index 45.4
- MiniMax M2.7 (MiniMax) — $0.52/1M blended, AA Index 38.9
- Solar Pro 4 (Upstage) — $0.52/1M blended, AA Index 41.6
About Google
Google's Gemini models are natively multimodal — most accept text, images, audio and video input — with 1M-token context windows across the range. The Flash line now ships on a roughly monthly cadence (3.6, 3.7, 3.8 Flash between July and September 2026) at the same introductory price, competing on price-performance and speed rather than peak capability.