Google Launches Gemini 3.1 Flash-Lite — Fastest and Most Cost-Efficient AI Model Yet

Google has launched Gemini 3.1 Flash-Lite, the company’s fastest and most cost-efficient artificial intelligence model to date, now available to developers via Google AI Studio and Vertex AI, the company announced on Tuesday, April 8, 2026.

Performance Benchmarks

According to Google, Gemini 3.1 Flash-Lite delivers 2.5 times faster response times than its predecessor, while generating output at 45 percent greater speed. The model achieves these performance gains while maintaining quality benchmarks competitive with larger, more expensive frontier AI models for a wide range of tasks.

Cost-Efficient AI

At just $0.25 per million input tokens, Gemini 3.1 Flash-Lite positions itself as the most affordable production-grade AI model in Google’s Gemini family. For comparison, larger frontier models from OpenAI and Anthropic typically cost between $3 and $15 per million input tokens for similar capability classes.

The pricing makes Flash-Lite particularly attractive for high-volume, cost-sensitive applications such as content moderation, customer service chatbots, document summarisation, and real-time translation.

Developer Access

Gemini 3.1 Flash-Lite is available immediately through Google AI Studio for individual developers and startups, and through Vertex AI for enterprise customers. The model supports multimodal inputs including text, images, audio, and video.

The AI Speed Race

Google’s launch comes amid intensifying competition in the fast-inference AI model segment, with rivals including Groq, Cerebras, and Mistral all competing on speed and cost. Google’s ability to deploy Flash-Lite at scale through its global infrastructure gives it a significant distribution advantage in this increasingly competitive market.

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