WAN-2.1 FLF2V Now Live on WaveSpeedAI: From Keyframes to Cinematic Motion

WaveSpeedAI,Mon Apr 21 2025

We’re excited to bring another powerful addition to the WAN-2.1 lineup: WAN-2.1 FLF2V (First-Last Frame-to-Video) is now live on WaveSpeedAI.

This model introduces a novel approach to video generation by taking a starting frame and a target end frame, and then generating a smooth, dynamic video that transitions between the two. Instead of interpolating or morphing, WAN-FLF2V creates realistic motion informed by text prompts, style, and visual coherence.

Whether you’re visualizing storyboards or animating scenes from key concepts, FLF2V opens new doors in controllable video generation.

What is WAN-2.1 FLF2V?

FLF2V stands for First-Last Frame to Video. The model uses two image anchors—the first frame and last frame—and generates a short cinematic sequence that connects the two via plausible and creative motion.

Rather than simply blending frames, it leverages the architecture of Wan 2.1, integrating LoRA conditioning, diffusion guidance, and temporal consistency training to produce meaningful transitions.

The FLF2V model bridges the creative gap between keyframes. The results often feel like scenes from short animated films—with character motion, background transitions, and action unfolding fluidly.

Key Features

Dual-Anchor Motion Synthesis: Generates video by connecting two key frames with context-aware motion sequences.
Supports Prompt + Image Input: Combine text guidance with first/last frame images for even finer control over content and style.
LoRA Compatible: Natively supports all LoRA models—customize characters, styles, and environments with precision.
High Fidelity + Realism: Trained to avoid warping, artifacts, or lazy interpolation—motion unfolds naturally and consistently.
Fast Inference with WaveSpeedAI Inference: Run WAN-FLF2V at blazing speeds with our optimized inference engine, saving time and compute costs.

Use Cases

Storyboard Visualization: Input the beginning and end of a scene—let FLF2V bring your storyboard panels to life.
Character Entrance/Exit Scenes: Animate how a character walks in, turns, jumps, or exits—FLF2V makes short transitions cinematic.
Environment-to-Environment Transitions: For conceptual art or games, animate a journey from a desert to a forest, day to night, etc.
Social Content & Edits: Perfect for smooth cuts and stylized transitions on platforms like TikTok, Instagram, or YouTube Shorts.

How to Use on WaveSpeedAI

Go to any WAN-2.1 FLF2V model page on WaveSpeedAI
Upload or generate a first frame and a target last frame.
Set your prompt, negative prompt, and resolution.
Generate a full video bridging the two scenes.

Whether you’re prototyping animations, visualizing transitions, or pushing the boundaries of AI-assisted storytelling, WAN-2.1 FLF2V opens up a powerful new dimension in controllable video generation. By simply specifying a first and last frame, creators can now produce smooth, coherent motion that connects moments with striking visual fidelity.