Veo 3.1 Lite preview shuts down Oct 22: Omni Flash on Sume

Google's deprecations page lists veo-3.1-lite-generate-preview shutting down October 22, 2026, with gemini-omni-1.1-flash as the recommended replacement. Sume's video docs list Gemini Omni Flash 1.1 under the catalog id gemini-omni-flash-1.1: 3 to 10 seconds, 16:9 or 9:16, with native synced audio.

Dates are from the Gemini API page and model facts from Video generation, read 2026-10-01.

Which Google models shut down on October 22?

What does Omni Flash 1.1 take on Sume?

The docs say 3 to 10 seconds at 360p, 720p, 1080p or 4K in 16:9 or 9:16 with native synced audio. It accepts image and video input_references (no audio) and exposes video edit mode through the Video Router video_url field. Check duration limits against your Veo prompts: the range is shorter than a clip you may have planned on a different model.

How do I find the id to call?

Read GET /v1/catalog, which lists capabilities, endpoints, runtime readiness, models and pricing metadata. Sume uses bare catalog ids and never carries a provider-org prefix, so the id you send is gemini-omni-flash-1.1, not Google's string.

What should I do before October 22?

Inventory calls that use the three preview ids, re-run a few prompts on the replacement and compare output. For the earlier Veo retirements see Veo 3 shutdown.