Gemini 2.5 Flash

active

Google's fastest thinking model. Configurable reasoning budget.

Context window1000K tokens

Input / 1M tokens$0.15

Output / 1M tokens$0.6

Version History

gemini-2.5-flash-preview-11-05minorNovember 5, 2025

Gemini 2.5 Flash November preview with configurable thinking budget improvements and better cost efficiency at higher thinking token counts.

gemini-2.5-flash-preview-05-20majorMay 20, 2025

Gemini 2.5 Flash enters preview with configurable thinking budget. Fastest Google model with reasoning at sub-$1/M input cost.