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FrontierThe story, in brief

Introducing Gemini 2.5 Flash

Google just shipped the first hybrid reasoning model. Developers can now toggle thinking on or off—trading speed for accuracy in real time.

Reporting by Google DeepMind Blog 1 min brief
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Why it matters

Gemini 2.5 Flash introduces a new capability tier: reasoning-on-demand. This hybrid approach lets developers optimize for latency vs. accuracy per query, fundamentally changing how AI applications are architected.

The key facts

4 to know

  1. Gemini 2.5 Flash is Google's first fully hybrid reasoning model

  2. Developers can toggle reasoning on or off per request

  3. Addresses the speed-vs-accuracy tradeoff in production AI systems

  4. Published April 17, 2025 on Google DeepMind official blog

Go to the source

Google DeepMind Blogdeepmind.google

Publisher excerpt: Gemini 2.5 Flash is our first fully hybrid reasoning model, giving developers the ability to turn thinking on or off.
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