Wan 2.1 Plus · First & Last Frame to Video / 首尾帧生视频
Wan2.1 start and end frames to video Plus version, generate a smooth transition video for two images. Support for large and complex movements, adherence to physical laws, rich artistic styles, and visual quality at the film and television level. The ability to follow instructions is further enhanced, resulting in richer details in the generated video.
Wan 2.1 KF2V PlusStart & End Frame Video at 720P
Wan 2.1 keyframe-to-video generates 5-second clips at 720P from start and end frames with optional prompt extension and negative prompt steering.
At a Glance
Wan 2.1 KF2V Plus Capabilities
Precise dual-frame transitions at 720P.
Start & End Frame Bridges
Land exactly on a target end frame for match cuts, product morphs, and seamless transitions.
Native 720P Output
Default 720P with prompt_extend and negative_prompt for cleaner, richer generations.
5 Second Clips
Fixed 5-second duration for predictable editorial timing.
Seed Reproducibility
Pin a seed to regenerate the same creative baseline after brief revisions.
How It Works
Dual-frame to finished clip.
Prepare Frames
Collect start and end frames for the transition.
Write the Motion Brief
Describe the action and camera language.
Set Canvas & Length
720P; 5 seconds; optional prompt_extend.
Steer & Deliver
Use negative_prompt and seed for production reruns.
Wan 2.1 KF2V Domains
Where dual-frame transitions matter.
Match Cuts
Start-and-end frames for seamless transitions.
Product Morphs
Animate packshots into lifestyle stills.
Social Drafts
5s clips for Reels and TikTok.
Previs Boards
Dual-frame bridges for shot-to-shot continuity.
Prompt Tips
Cleaner Wan 2.1 KF2V generations.
Mention the end composition so the model aims for that landing.
List only what you must avoid rather than long ban lists.
wan2.2-kf2v-flash supports up to 1080P for hero placements.
Wan 2.1 KF2V Quickstart
Dual-frame 720P video.
curl -X POST "https://api.powertokens.ai/v1/videos" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "wan2.1-kf2v-plus",
"prompt": "Cinematic tracking shot through a neon cyberpunk city in heavy rain.",
"seconds": "5",
"size": "720P",
"ratio": "16:9",
"watermark": false
}'Technical Specifications
Confirmed parameters and runtime execution protocols.
价格详情
此模型的实际计费根据您在 API 请求中传入的具体参数动态计算。以下是具体的组合及其对应的价格：
| 模态 | 积分 | 价格 (USD) |
|---|---|---|
| 720P | 100/ Second | $0.100 |
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Frequently Asked Questions
Everything you need to know before integrating this model.
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