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Gemini Docs

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Gemini Docs

September 17, 2026 at 10:02 PM UTC

Added the Lyria prompt guide covering prompt engineering for Lyria 3.5, Lyria 3 Clip, and Lyria RealTime (genre, style, instruments, structure, and real-time steering).

Changelog

Music generation

  • Added the Lyria prompt guide covering prompt engineering for Lyria 3.5, Lyria 3 Clip, and Lyria RealTime (genre, style, instruments, structure, and real-time steering).
  • Inline prompting sections on Music generation, Generate content: music generation, and Real-time music generation now point to that dedicated guide instead of duplicating prompt tips.
  • On Real-time music generation, the Lyria RealTime callout is labeled as a note (still experimental), and a JavaScript example uses setWeightedPrompts.

Image generation

  • Generate images using Imagen now states Imagen is shut down and no longer available in the Gemini API, with migration guidance to Nano Banana (generate_content, e.g. gemini-2.5-flash-image / Nano Banana 2).
  • Image generation, Models, Prompting strategies, and Text generation are updated to treat Imagen as shut down/legacy and to recommend Nano Banana for image generation.
Older release← Sep 17, 18:02 UTCNewer release→ Sep 18, 16:03 UTC
All Gemini Docs releases →