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feat: add Veo 3.1 model support (fixes #595)#773

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tarai-dl:rn/feat-veo-3.1-support
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feat: add Veo 3.1 model support (fixes #595)#773
tarai-dl wants to merge 1 commit intoMerit-Systems:masterfrom
tarai-dl:rn/feat-veo-3.1-support

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Summary

This PR adds support for Google's new Veo 3.1 video generation models:

  • veo-3.1-generate-preview
  • veo-3.1-fast-generate-preview

As referenced in the Vertex AI documentation, these are the latest video generation models from Google.

Changes

  • Added Veo 3.1 models to supported-models/video/vertex-ai.ts with pricing
  • Added Veo 3.1 models to VertexAIProvider VEO3_MODELS list
  • Updated VideoModelOption type to include new models
  • Updated video template model selector with "Veo 3.1" and "Veo 3.1 Fast" options
  • Updated video generation API validation to accept new models
  • Updated vertex.ts handler type to include new models

Pricing

The pricing follows the same structure as Veo 3.0 models:

  • Veo 3.1: $0.40/second with audio, $0.20/second without audio
  • Veo 3.1 Fast: $0.15/second with audio, $0.10/second without audio

Fixes #595

Add support for veo-3.1-generate-preview and veo-3.1-fast-generate-preview
models to the Echo router and video template.

Changes:
- Added Veo 3.1 models to supported-models/video/vertex-ai.ts
- Added Veo 3.1 models to VertexAIProvider VEO3_MODELS list
- Updated VideoModelOption type to include new models
- Updated video template model selector with Veo 3.1 options
- Updated video generation API validation to accept new models
- Updated vertex.ts handler type to include new models
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vercel Bot commented Apr 20, 2026

@tarai-dl is attempting to deploy a commit to the Merit Systems Team on Vercel.

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Support Veo 3.1 in the veo provider

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