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Veo 3.1 Fast

The quicker, cheaper tier of Veo 3.1. Cinematic motion with synchronized sound, built for iterating on shots before you commit to a final render.

The lowest listed Veo 3.1 Fast price we found at 1080p with sound and 4K with sound (checked 2026-10-26). See the other APIs

veo-3.1-fastGet API key

Pricing per second of video

ResolutionAudio offAudio on
720p$0.08lowest8 credits$0.1010 credits
1080p$0.1010 credits$0.1111 credits
4K$0.2525 credits$0.2929 credits

Billed in credits per second of video (100 credits = $1, rounded up to a whole credit). Charged once, only for the route that succeeds. Failed attempts cost $0.00.

Request

# 1. Submit a generation and keep its id (a refusal prints {"error": {"message": ...}})
RESP=$(curl -s https://api.revana.si/v1/generations \
  -H "Authorization: Bearer $REVANA_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "veo-3.1-fast",
    "input": {
      "prompt": "A slow dolly shot through a neon-lit night market in the rain, steam rising from food stalls",
      "resolution": "720p",
      "duration": 8,
      "aspect_ratio": "16:9",
      "audio": true
    }
  }')
echo "$RESP"
ID=$(echo "$RESP" | jq -r .id)

# 2. Poll it until status is "succeeded" or "failed" (a failed one has error.message)
curl -s https://api.revana.si/v1/generations/$ID \
  -H "Authorization: Bearer $REVANA_API_KEY"

# 3. Download the file once it has succeeded
curl -L https://api.revana.si/v1/generations/$ID/content \
  -H "Authorization: Bearer $REVANA_API_KEY" \
  -o out.mp4

Set REVANA_API_KEY to your key. Full reference in the quickstart.

Options

Tasks
Text to videoImage to videoFirst + last frameReference to video
Resolutions
720p1080p4K
Durations
4 s6 s8 s
Aspect ratios
16:99:16Auto
Audio
Supported
Input images
Up to 3
Billing unit
per second of video
Model id
veo-3.1-fast

2 routes

Every request starts on the cheapest route. If it fails, the job moves to the next one automatically.

About the Veo 3.1 Fast API

How much does the Veo 3.1 Fast API cost?

Veo 3.1 Fast costs from $0.08 per second of video on Revana (720p: $0.08; 720p + with audio: $0.10; 1080p: $0.10; 1080p + with audio: $0.11; 4K: $0.25; 4K + with audio: $0.29). You pay in prepaid credits, 100 credits to the dollar, with no subscription or monthly minimum. A generation that fails costs nothing.

What is the cheapest Veo 3.1 Fast API?

Revana, at $0.11 a second at 1080p with sound and $0.29 a second at 4K with sound: the lowest listed Veo 3.1 Fast price we found, below every other API we checked, the model maker's own included (checked 2026-10-26). At 720p, Google's own API lists the same $0.08; at 720p with sound, Google's own API lists the same $0.10; at 1080p, Google's own API lists the same $0.10. Every price is compared at https://revana.si/blog/veo-3-1-api-pricing.

How do I call Veo 3.1 Fast from code?

Send POST https://api.revana.si/v1/generations with {"model": "veo-3.1-fast", "input": {...}} and your Revana API key as a Bearer token, poll GET /v1/generations/{id} until it succeeds, then download GET /v1/generations/{id}/content. Every model on Revana takes the same request shape.

What happens if a Veo 3.1 Fast generation fails?

Revana has 2 routes for Veo 3.1 Fast. A job starts on the cheapest and moves to the next automatically if one fails. You are charged once, only for the route that delivers. A failed generation costs $0.00.

What can Veo 3.1 Fast do on Revana?

Veo 3.1 Fast supports text to video, image to video, first + last frame and reference to video, resolutions 720p, 1080p, 4K, durations 4 s, 6 s, 8 s, aspect ratios 16:9, 9:16, Auto, generated audio and up to 3 input images. A value it does not offer is refused with 422 before anything is charged.

Can my AI agent use Veo 3.1 Fast?

Yes. Connect the Revana MCP server (https://revana.si/api/mcp) to Claude, ChatGPT, Cursor or Codex, or have the agent call the REST API. The agent can list models, get a free quote and generate on your credits.

Veo 3.1 Fast price at other APIs (checked 2026-10-26)

Per second of output for a 16:9 clip; the +audio columns are with sound. Card and top-up fees are not included.

API720p720p+audio1080p1080p+audio4K4K+audio
Revana$0.08$0.10$0.10$0.11$0.25$0.29
Google's own API$0.08$0.10$0.10$0.12$0.25$0.30
fal$0.10$0.15$0.10$0.15$0.30$0.35
Replicate$0.10$0.15$0.10$0.15––
Runway API$0.10$0.15$0.10$0.15––

Lowest listed price per second: 720p Revana and Google's own API ($0.08); 720p+audio Revana and Google's own API ($0.10); 1080p Revana and Google's own API and fal and Replicate and Runway API ($0.10); 1080p+audio Revana ($0.11); 4K Revana and Google's own API ($0.25); 4K+audio Revana ($0.29).

Full comparison and sources: /blog/veo-3-1-api-pricing (data: /data/market-prices.json)

Guides

Compare with similar models

Also as markdown for agents. Every model and price: models.json.