Core features

Veo 3.1 focuses on practical content creation features:

Native audio generation (dialogue, ambient sound, SFX) integrated in outputs. Veo 3.1 generates native audio (dialogue + ambience + SFX) aligned to the visual timeline; the model aims to preserve lip sync and audio–visual alignment for dialogue and scene cues.
Longer outputs (support for up to ~60 seconds / 1080p versus Veo 3’s very short clips,8s), and multi-prompt multi-shot sequences for narrative continuity.
Scene Extension and First/Last Frame modes that extend or interpolate footage between key frames.
Object insertion and (coming) object removal and editing primitives inside Flow.

Each bullet above is designed to reduce manual VFX work: audio and scene continuity are now first-class outputs rather than afterthoughts.

Technical details (model behavior & inputs)

Model family & variants: Veo belongs to Google’s Veo-3 family; the preview model ID is typically veo3.1-pro; veo3.1 (CometAPI doc). It accepts text prompts, image references (single frame or sequences), and structured multi-prompt layouts for multi-shot generation.

Resolution & duration: Preview documentation describes outputs at 720p/1080p with options for longer durations (up to ~60s in certain preview settings) and higher fidelity than earlier Veo variants.

Aspect ratios: 16:9 (supported) and 9:16 (supported except in some reference-image flows).

Prompt language: English (preview).

API limits: typical preview limits include max 10 API requests/min per project, max 4 videos per request, and video lengths selectable among 4, 6, or 8 seconds (reference-image flows support 8s).

Benchmark performance

Google’s internal and publicly summarized evaluations report strong preference for Veo 3.1 outputs across human rater comparisons on metrics such as text alignment, visual quality, and audio–visual coherence (text→video and image→video tasks).

Veo 3.1 achieved state-of-the-art results on internal human-rater comparisons across several objective axes — overall preference, prompt alignment (text→video and image→video), visual quality, audio-video alignment, and “visually realistic physics” on benchmark datasets such as MovieGenBench and VBench.

Limitations & safety considerations

Limitations:

Artifacts & inconsistency: despite improvements, certain lighting, fine-grained physics, and complex occlusions can still yield artifacts; image→video consistency (especially over long durations) is improved but not perfect.
Misinformation / deepfake risk: richer audio + object insertion/removal increases misuse risk (realistic fake audio and extended clips). Google notes mitigations (policy, safeguards) and earlier Veo launches referenced watermarking/SynthID to aid provenance; however technical safeguards do not eliminate misuse risk.
Cost & throughput constraints: high-resolution, long videos are computationally expensive and currently gated in a paid preview—expect higher latency and cost compared with image models. Community posts and Google forum threads discuss availability windows and fallback strategies.

Safety controls: Veo3.1 has integrated content policies, watermarking/synthID signaling in earlier Veo releases, and preview access controls; customers are advised to follow platform policy and implement human review for high-risk outputs.

Practical use cases

Rapid prototyping for creatives: storyboards → multi-shot clips and animatics with native dialogue for early creative review.
Marketing & short form content: 15–60s product spots, social clips, and concept teasers where speed matters more than perfect photorealism.
Image→video adaptation: turning illustrations, characters, or two frames into smooth transitions or animated scenes via First/Last Frame and Scene Extension.
Tooling augmentation: integrated into Flow for iterative editing (object insertion/removal, lighting presets) that reduces manual VFX passes.

Comparison with other leading models

Veo 3.1 vs Veo 3 (predecessor): Veo 3.1 focuses on improved prompt adherence, audio quality, and multi-shot consistency — incremental but impactful updates aimed at reducing artifacts and improving editability.

Veo 3.1 vs OpenAI Sora 2: tradeoffs reported in press: Veo 3.1 emphasizes longer-form narrative control, integrated audio, and Flow editing integration; Sora 2 (when compared in press) focuses on different strengths (speed, different editing pipelines). TechRadar and other outlets frame Veo 3.1 as Google’s targeted competitor to Sora 2 for narrative and longer video support. Independent side-by-side testing remains limited.

Veo 3.1 가격

[모델명]의 경쟁력 있는 가격을 살펴보세요. 다양한 예산과 사용 요구에 맞게 설계되었습니다. 유연한 요금제로 사용한 만큼만 지불하므로 요구사항이 증가함에 따라 쉽게 확장할 수 있습니다. [모델명]이 비용을 관리 가능한 수준으로 유지하면서 프로젝트를 어떻게 향상시킬 수 있는지 알아보세요.

veo3.1（videos）

Model name	Tags	Calculate price
veo3.1-all	videos	$0.20000
veo3.1	videos	$0.40000

Veo 3.1의 샘플 코드 및 API

[모델 이름]의 포괄적인 샘플 코드와 API 리소스에 액세스하여 통합 프로세스를 간소화하세요. 자세한 문서는 단계별 가이드를 제공하여 프로젝트에서 [모델 이름]의 모든 잠재력을 활용할 수 있도록 돕습니다.

#!/bin/bash
# Get your CometAPI key from https://api.cometapi.com/console/token
# Export it as: export COMETAPI_KEY="your-key-here"

BASE_URL="https://api.cometapi.com/v1"
IMAGE_PATH="/tmp/veo3.1_reference.jpg"

# ============================================================
# Step 1: Download Reference Image
# ============================================================
echo "Step 1: Downloading reference image..."

curl -s -o "$IMAGE_PATH" "https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=1280"
echo "Reference image saved to: $IMAGE_PATH"

# ============================================================
# Step 2: Create Video Generation Task (form-data with image upload)
# ============================================================
echo ""
echo "Step 2: Creating video generation task..."

RESPONSE=$(curl -s -X POST "${BASE_URL}/videos" \
  -H "Authorization: $COMETAPI_KEY" \
  -F 'prompt=A breathtaking mountain landscape with clouds flowing through valleys, cinematic aerial shot' \
  -F 'model=veo3.1' \
  -F 'size=16x9' \
  -F "input_reference=@${IMAGE_PATH}")

echo "Create response:"
echo "$RESPONSE" | jq .

TASK_ID=$(echo "$RESPONSE" | jq -r '.id')

if [ "$TASK_ID" = "null" ] || [ -z "$TASK_ID" ]; then
  echo "Error: Failed to get task_id from response"
  exit 1
fi

echo "Task ID: $TASK_ID"

# ============================================================
# Step 3: Query Task Status
# ============================================================
echo ""
echo "Step 3: Querying task status..."

QUERY_RESPONSE=$(curl -s -X GET "${BASE_URL}/videos/${TASK_ID}" \
  -H "Authorization: $COMETAPI_KEY")

echo "Query response:"
echo "$QUERY_RESPONSE" | jq .

TASK_STATUS=$(echo "$QUERY_RESPONSE" | jq -r '.data.status')
echo "Task status: $TASK_STATUS"

cURL Code Example

#!/bin/bash
# Get your CometAPI key from https://api.cometapi.com/console/token
# Export it as: export COMETAPI_KEY="your-key-here"

BASE_URL="https://api.cometapi.com/v1"
IMAGE_PATH="/tmp/veo3.1_reference.jpg"

# ============================================================
# Step 1: Download Reference Image
# ============================================================
echo "Step 1: Downloading reference image..."

curl -s -o "$IMAGE_PATH" "https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=1280"
echo "Reference image saved to: $IMAGE_PATH"

# ============================================================
# Step 2: Create Video Generation Task (form-data with image upload)
# ============================================================
echo ""
echo "Step 2: Creating video generation task..."

RESPONSE=$(curl -s -X POST "${BASE_URL}/videos" \
  -H "Authorization: $COMETAPI_KEY" \
  -F 'prompt=A breathtaking mountain landscape with clouds flowing through valleys, cinematic aerial shot' \
  -F 'model=veo3.1' \
  -F 'size=16x9' \
  -F "input_reference=@${IMAGE_PATH}")

echo "Create response:"
echo "$RESPONSE" | jq .

TASK_ID=$(echo "$RESPONSE" | jq -r '.id')

if [ "$TASK_ID" = "null" ] || [ -z "$TASK_ID" ]; then
  echo "Error: Failed to get task_id from response"
  exit 1
fi

echo "Task ID: $TASK_ID"

# ============================================================
# Step 3: Query Task Status
# ============================================================
echo ""
echo "Step 3: Querying task status..."

QUERY_RESPONSE=$(curl -s -X GET "${BASE_URL}/videos/${TASK_ID}" \
  -H "Authorization: $COMETAPI_KEY")

echo "Query response:"
echo "$QUERY_RESPONSE" | jq .

TASK_STATUS=$(echo "$QUERY_RESPONSE" | jq -r '.data.status')
echo "Task status: $TASK_STATUS"

Python Code Example

import os
import requests
import json

# Get your CometAPI key from https://api.cometapi.com/console/token, and paste it here
COMETAPI_KEY = os.environ.get("COMETAPI_KEY") or "<YOUR_COMETAPI_KEY>"
BASE_URL = "https://api.cometapi.com/v1"

headers = {
    "Authorization": COMETAPI_KEY,
}

# ============================================================
# Step 1: Download Reference Image
# ============================================================
print("Step 1: Downloading reference image...")

image_url = "https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=1280"
image_response = requests.get(image_url)
image_path = "/tmp/veo3.1_reference.jpg"
with open(image_path, "wb") as f:
    f.write(image_response.content)
print(f"Reference image saved to: {image_path}")

# ============================================================
# Step 2: Create Video Generation Task (form-data with image upload)
# ============================================================
print("\nStep 2: Creating video generation task...")

with open(image_path, "rb") as image_file:
    files = {
        "input_reference": ("reference.jpg", image_file, "image/jpeg"),
    }
    data = {
        "prompt": "A breathtaking mountain landscape with clouds flowing through valleys, cinematic aerial shot",
        "model": "veo3.1",
        "size": "16x9",
    }
    create_response = requests.post(
        f"{BASE_URL}/videos", headers=headers, data=data, files=files
    )

create_result = create_response.json()
print("Create response:", json.dumps(create_result, indent=2))

task_id = create_result.get("id")
if not task_id:
    print("Error: Failed to get task_id from response")
    exit(1)
print(f"Task ID: {task_id}")

# ============================================================
# Step 3: Query Task Status
# ============================================================
print("\nStep 3: Querying task status...")

query_response = requests.get(f"{BASE_URL}/videos/{task_id}", headers=headers)
query_result = query_response.json()
print("Query response:", json.dumps(query_result, indent=2))

task_status = query_result.get("data", {}).get("status")
print(f"Task status: {task_status}")

JavaScript Code Example

import fs from "fs";
import path from "path";
import os from "os";

// Get your CometAPI key from https://api.cometapi.com/console/token, and paste it here
const api_key = process.env.COMETAPI_KEY || "<YOUR_COMETAPI_KEY>";
const base_url = "https://api.cometapi.com/v1";

// ============================================================
// Step 1: Download Reference Image
// ============================================================
console.log("Step 1: Downloading reference image...");

const imageUrl = "https://images.unsplash.com/photo-1506905925346-21bda4d32df4?w=1280";
const imageResponse = await fetch(imageUrl);
const imageBuffer = Buffer.from(await imageResponse.arrayBuffer());
const imagePath = path.join(os.tmpdir(), "veo3.1_reference.jpg");
fs.writeFileSync(imagePath, imageBuffer);
console.log(`Reference image saved to: ${imagePath}`);

// ============================================================
// Step 2: Create Video Generation Task (form-data with image upload)
// ============================================================
console.log("\nStep 2: Creating video generation task...");

const formData = new FormData();
formData.append("prompt", "A breathtaking mountain landscape with clouds flowing through valleys, cinematic aerial shot");
formData.append("model", "veo3.1");
formData.append("size", "16x9");
formData.append("input_reference", new Blob([fs.readFileSync(imagePath)], { type: "image/jpeg" }), "reference.jpg");

const createResponse = await fetch(`${base_url}/videos`, {
  method: "POST",
  headers: {
    "Authorization": api_key,
  },
  body: formData,
});

const createResult = await createResponse.json();
console.log("Create response:", JSON.stringify(createResult, null, 2));

const taskId = createResult?.id;
if (!taskId) {
  console.log("Error: Failed to get task_id from response");
  process.exit(1);
}
console.log(`Task ID: ${taskId}`);

// ============================================================
// Step 3: Query Task Status
// ============================================================
console.log("\nStep 3: Querying task status...");

const queryResponse = await fetch(`${base_url}/videos/${taskId}`, {
  method: "GET",
  headers: {
    "Authorization": api_key,
  },
});

const queryResult = await queryResponse.json();
console.log("Query response:", JSON.stringify(queryResult, null, 2));

const taskStatus = queryResult?.data?.status;
console.log(`Task status: ${taskStatus}`);

Veo 3.1의 버전

Veo 3.1에 여러 스냅샷이 존재하는 이유는 업데이트 후 출력 변동으로 인해 일관성을 유지하기 위해 이전 스냅샷을 보관하거나, 개발자에게 적응 및 마이그레이션을 위한 전환 기간을 제공하거나, 글로벌 또는 지역별 엔드포인트에 따라 다양한 스냅샷을 제공하여 사용자 경험을 최적화하기 위한 것 등이 포함될 수 있습니다. 버전 간 상세한 차이점은 공식 문서를 참고해 주시기 바랍니다.

Model id	description	Availability	Price	Requst
veo3.1-all	The technology used is unofficial and the generation is unstable etc	✅	$0.2 / per	Chat format
veo3.1	Recommend, Pointing to the latest model	✅	$0.4/ per	Async Generation

Veo 3.1

Veo 3.1의 Playground