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Google Debuts Gemini 2.5 Flash with Hybrid Reasoning Controls

The AI model, now in preview, offers developers adjustable 'thinking budgets' to balance cost, speed, and reasoning quality.

Overview

  • Gemini 2.5 Flash is available in preview through the Gemini app, API, Google AI Studio, and Vertex AI, offering developers early access to its features.
  • The model introduces hybrid reasoning, allowing developers to toggle its 'thinking' function on or off for tailored performance.
  • A 'thinking budget' feature lets developers allocate computational resources, optimizing cost and latency for complex tasks.
  • Priced at $0.15 per million input tokens and $0.60/$3.50 per million output tokens (without/with reasoning), it aims to deliver cost-efficient reasoning capabilities.
  • Google is gathering developer feedback during the preview phase to refine its dynamic reasoning features for broader deployment.