Imagen 4 API models shut down on August 17, 2026

What breaks

Applications pinned to any of the three Imagen 4 model IDs will lose image generation on August 17.

• Requests to the listed Imagen 4 model IDs will stop working after shutdown.

Affected identifiers and fields

Search your code, environment variables, gateway configuration, and stored request templates for these exact values.

• imagen-4.0-generate-001
• imagen-4.0-ultra-generate-001
• imagen-4.0-fast-generate-001

• Imagen 4
• image generation
• generate_images
• model

Migration target

Migrate image-generation workflows to gemini-3.1-flash-image using Google's current image-generation guidance.

• gemini-3.1-flash-image

What to do

Move to gemini-3.1-flash-image and test request shape, output handling, latency, image quality, and safety behavior before the deadline.

Official source receipts

These provider pages support the dates, identifiers, symptoms, and migration direction recorded above.