证据：Gemini API deprecations page (checked 2026-10-22): the Imagen 4 models table lists imagen-4.0-generate-001, imagen-4.0-ultra-generate-001 and imagen-4.0-fast-generate-001 with release date June 24, 2025 and shutdown date August 17, 2026; the recommended replacement is gemini-nano-banana-2.1.
capability_tags
公开事实
text_to_image
高置信度，已绑定来源与证据。
条件：Official Imagen documentation explicitly describes image generation from text prompts. This tag does not imply image-to-image editing, video generation, or output quality.
证据：Google's official Gemini API documentation describes Imagen as an image generation model capable of generating images from text prompts. The Imagen 4 model versions table lists imagen-4.0-generate-001, imagen-4.0-ultra-generate-001 and imagen-4.0-fast-generate-001 with Text input and Images output. The page marks Imagen 4 as Deprecated and states shutdown on 2026-08-17.
证据：Gemini API deprecations page (checked 2026-10-22): the Imagen 4 models table lists imagen-4.0-generate-001, imagen-4.0-ultra-generate-001 and imagen-4.0-fast-generate-001 with release date June 24, 2025 and shutdown date August 17, 2026; the recommended replacement is gemini-nano-banana-2.1.
证据：Gemini API deprecations page (checked 2026-10-22): the Imagen 4 models table lists imagen-4.0-generate-001, imagen-4.0-ultra-generate-001 and imagen-4.0-fast-generate-001 with release date June 24, 2025 and shutdown date August 17, 2026; the recommended replacement is gemini-nano-banana-2.1.
证据：Gemini API deprecations page (checked 2026-10-22): the Imagen 4 models table lists imagen-4.0-generate-001, imagen-4.0-ultra-generate-001 and imagen-4.0-fast-generate-001 with release date June 24, 2025 and shutdown date August 17, 2026; the recommended replacement is gemini-nano-banana-2.1.
证据：Gemini API deprecations page (checked 2026-10-22): the Imagen 4 models table lists imagen-4.0-generate-001, imagen-4.0-ultra-generate-001 and imagen-4.0-fast-generate-001 with release date June 24, 2025 and shutdown date August 17, 2026; the recommended replacement is gemini-nano-banana-2.1.