Google Gemini 3.1 Flash-Lite debuts, offering 2.5x faster first-word response time.

Google released the lightweight AI model Gemini 3.1 Flash-Lite, claiming it to be the fastest and most cost-effective model in the Gemini 3 series. The model boasts a 2.5x faster first-word response time compared to the 2.5 Flash, and an overall output speed improvement of 45%. It is priced at $0.25 per million input tokens and $1.50 per million output tokens. The model achieved an Elo score of 1432 on Arena.ai and a GPQA Diamond score of 86.9%, surpassing its predecessor in multiple metrics.