Veo 3.1 Fast Preview

Faster, lower-cost Veo 3.1 video generation with synchronized audio.

Googleveo-3.1-fast-generate-preview2025-10-15Report incorrect data

Specs

Context: —
Max output: —
Input price: —
Output price: $0.1/ second
Released: 2025-10-15

Context

Context window: —
Max input: 1K
Max output: —

Pricing · USD / second

Input: —
Output: $0.1
Cache read: —
Cache write: —

Modalities

Input: TextImage
Output: Video

API

API types: video

Reasoning

Reasoning: No

Info

Status: Deprecated
Released: 2025-10-15
Knowledge cutoff: —

Features

Not published

How to call

googlemodel = veo-3.1-fast-generate-preview

video

POSThttps://generativelanguage.googleapis.com/v1beta/models/{model}:predictLongRunning

JSON

veo-3.1-fast-generate-preview.json

{
  "id": "veo-3.1-fast-generate-preview",
  "object": "model",
  "created": 1760486400,
  "owned_by": "google",
  "name": "Veo 3.1 Fast Preview",
  "api": {
    "types": [
      "video"
    ]
  },
  "limits": {
    "context": null,
    "input": 1024,
    "output": null
  },
  "modalities": {
    "input": [
      "text",
      "image"
    ],
    "output": [
      "video"
    ]
  },
  "reasoning": {
    "supported": false,
    "efforts": []
  },
  "pricing": {
    "currency": "USD",
    "unit": "second",
    "input": null,
    "output": 0.1,
    "cache_read": null,
    "cache_write": null
  },
  "features": [],
  "info": {
    "status": "deprecated",
    "release_date": "2025-10-15",
    "knowledge_cutoff": null,
    "description": "Faster, lower-cost Veo 3.1 video generation with synchronized audio.",
    "docs": "https://ai.google.dev/gemini-api/docs/models/veo-3.1-generate-preview",
    "verified_at": "2026-10-11"
  }
}

Official sources