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Gemini 1.5 Flash

Fast variant optimized for speed over maximum reasoning; million-token context with reduced latency; ideal for real-time applications and high-throughput workloads.

Gemini 1.5 Flash was released in May 2024 as the high-speed complement to 1.5 Pro, maintaining the revolutionary 1-million-token context window while prioritizing inference speed and cost efficiency. Unlike Pro, Flash uses an optimized architecture trading some reasoning depth for dramatically faster response times, making it suitable for real-time chatbots, live support systems, and applications handling millions of daily requests. The model retains strong multimodal capabilities including video, image, text, and audio understanding within its expansive context window. Flash achieves 40% faster inference than 1.5 Pro while maintaining competitive quality on many tasks. It sparked widespread adoption among developers building production systems requiring both capability and speed. Knowledge cutoff: May 2024. Updated version 002 launched September 2024 with performance enhancements.

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