Model and API retirements

Within 30 days64Firm dates ahead558

64 within 30 days · 558 firm dates ahead

imagen-4.0-fast-generate-001 retirement date and replacement

Gemini API · Model · retired Aug 17, 2026 (retired)

Vendor page

Dates

Checked Nov 2, 2026 on Google's page
RetiredAug 17, 2026 (retired)
Replacementgemini-nano-banana-2.1
What it isimagen-4.0-fast-generate-001 stopped answering on Gemini API.
Sourceai.google.dev/gemini-api/docs/deprecations

Changes

ReplacementUnverified

Google changed the replacement for imagen-4.0-fast-generate-001 from gemini-3.1-flash-image to gemini-nano-banana-2.1.

Oct 7Source

Around the same time on Gemini API

Google
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embedding-2-preview

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retiredAug 10
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imagen-4.0-generate-001

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retiredAug 17
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imagen-4.0-ultra-generate-001

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retiredAug 31
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Stopped answering on Gemini API.

40 days agoSep 30