Wan-2.1 First-Last-Frame-to-Video Image to Video

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Wan-2.1 First-Last-Frame-to-Video

Advanced AI Model for Dynamic Video Generation from Key Frames

Transform your creative workflows with Wan-2.1 FLF2V, a powerful AI model that generates smooth, coherent video sequences by intelligently bridging between first and last frame images.

Overview

Wan-2.1 FLF2V delivers high-quality video generation by synthesizing intermediate frames between user-specified start and end images. Built on fal.ai's robust infrastructure, it offers seamless integration options through both REST APIs and native SDKs.

Key Benefits

Transform your applications with Wan-2.1 FLF2V's unique advantages:

• Generate dynamic videos from just two frame images
• Create smooth, natural transitions between scenes
• Produce 720p high-definition video output
• Fast processing times (approximately 1 minute)
• Commercial use permitted

Getting Started

Getting up and running with Wan-2.1 FLF2V takes just a few minutes. Here's how to begin:

1. Install your preferred SDK:

For JavaScript/TypeScript:

bash
npm install --save @fal-ai/client

For Python:

bash
pip install fal-client

2. Configure your authentication:

JavaScript:

javascript
import { fal } from "@fal-ai/client";

fal.config({
  credentials: "YOUR_FAL_KEY"
});

Python:

python
import fal_client
import os

os.environ["FAL_KEY"] = "YOUR_FAL_KEY"

Implementation Example

Here's a practical example of generating videos with Wan-2.1 FLF2V:

javascript
import { fal } from "@fal-ai/client";

async function generateVideo() {
  try {
    const result = await fal.subscribe("fal-ai/wan-flf2v", {
      input: {
        first_frame_url: "https://your-domain.com/first-frame.jpg",
        last_frame_url: "https://your-domain.com/last-frame.jpg",
        prompt: "Smooth transition between frames",
        resolution: "720p"
      }
    });
    return result;
  } catch (error) {
    console.error("Generation failed:", error);
  }
}

Best Practices

Maximize your results by following these proven approaches:

• Use high-quality images for first and last frames
• Ensure both frames have consistent aspect ratios
• Write clear prompts to guide the transition
• Choose appropriate resolution based on your needs
• Implement proper error handling for production environments

Advanced Usage

For production deployments, consider implementing these patterns:

Queue-based Processing:

javascript
const { request_id } = await fal.queue.submit("fal-ai/wan-flf2v", {
  input: {
    first_frame_url: "your-first-frame.jpg",
    last_frame_url: "your-last-frame.jpg",
    prompt: "Your transition description"
  },
  webhookUrl: "https://your-webhook.url"
});

// Check status
const status = await fal.queue.status("fal-ai/wan-flf2v", {
  requestId: request_id
});

// Get result
const result = await fal.queue.result("fal-ai/wan-flf2v", {
  requestId: request_id
});

File Upload Support:

javascript
const file = new File([imageData], "frame.jpg", { type: "image/jpeg" });
const url = await fal.storage.upload(file);
// Use the uploaded URL in your request

Technical Specifications

Input Requirements:

• First frame image: JPG, JPEG, PNG, WEBP, GIF, AVIF formats
• Last frame image: Same formats as above
• Resolution options: 480p or 720p

Output:

• Format: MP4 video
• Resolution: 480p or 720p (based on input)
• Processing time: Approximately 1 minute

Integration Support

Our comprehensive support ensures smooth implementation:

• Detailed API documentation
• Direct technical support through fal.ai's support channels
• Regular updates and performance improvements
• Community Discord for knowledge sharing
• Example code and integration patterns

Pricing and Usage

Transparent, usage-based pricing:

• 480p resolution: $0.20 per video generation
• 720p resolution: $0.40 per video generation
• Pay-per-use model with no subscription required
• No hidden fees or minimum commitments

Example: For $1, you can generate approximately 5 videos at 480p or 2.5 videos at 720p.

View detailed pricing or contact sales for enterprise solutions.

Getting Help

We're here to support your implementation:

• Visit our documentation at fal.ai/models/fal-ai/wan-flf2v
• Join our community Discord for real-time assistance
• Contact our support team for technical questions
• Check our blog for tutorials and best practices
• Monitor system status at status.fal.ai

Start building with Wan-2.1 FLF2V today and experience powerful video generation from key frames. Create your free account at fal.ai/login to begin exploring the possibilities.