Gemini 2.5 Flash

Gemini 2.5 Flash was previewed May 20, 2025 at Google I/O as a cost-efficient reasoning model. Featured hybrid reasoning with a toggleable thinking budget, 1M token context window, and multimodal capabilities. Priced at \$0.15/\$0.60 per million tokens. Designed to bring 2.5 Pro reasoning quality to Flash-tier pricing.