Gemini 3.1 Flash Lite Preview vs Gemini 2.5 Flash Lite

Gemini 3.1 Flash Lite Preview is Google’s high-efficiency model designed for high-throughput, high-volume use cases. It delivers better overall quality than Gemini 2.5 Flash Lite and comes close to Gemini 2.5 Flash performance across core capabilities. Enhancements include audio input/ASR, RAG snippet ranking, translation, data extraction, and code completion. It supports the full range of thinking levels (minimal, low, medium, high) to enable fine-grained cost/performance tuning. Pricing is set at half the cost of Gemini 3 Flash.

Gemini 2.5 Flash-Lite is a streamlined reasoning model from the Gemini 2.5 family, designed for extremely low latency and cost-effectiveness. It delivers higher throughput, quicker token generation, and enhanced performance on standard benchmarks compared to previous Flash models.