Gemini 2.5 models to be deprecated, 2.5 Flash redirected to 3.5 Flash-Lite

AIGoogle says Gemini API users on the Gemini 2.5 series should move, as Gemini 2.5 Pro is deprecated and redirected to 3.8 Flash on Dec 1, and Gemini 2.5 Flash to 3.5 Flash-Lite on the same date. Paige Bailey says Google's evals suggest 3.5 Flash-Lite and 3.8 Flash should have similar or stronger capabilities, latencies, and prices, and asks users to report otherwise.

👩‍💻 Paige BaileyOfficial

@DynamicWebPaige

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🗣️ PSA, if you're still using the Gemini 2.5 series models!

Based on our evals, we're pretty confident that Flash-Lite and 3.8 Flash should have similar (or even stronger!!) capabilities, latencies, and pricepoints, but please let us know if you don't find that to be the case.

Patrick Loeber@patloeber

PSA: Upcoming Gemini API deprecations - Gemini 2.5 Pro will be deprecated and auto-redirected to 3.8 Flash on Dec 1 - Gemini 2.5 Flash will be deprecated and auto-redirected to 3.5 Flash-Lite on Dec 1

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👩‍💻 Paige Bailey · x.comPublished Nov 3, 12:55 PM ET · added here 1:08 PM ET

Original title: 🗣️ PSA, if you're still using the Gemini 2.5 series models!

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Google / Gemini Deployment & engineering Model releases Business news