What is HY-Motion 1.0?
HY-Motion 1.0 is a text-to-motion model from Tencent's Hunyuan 3D Digital Human team. You describe one person's action in English, such as a squat into an overhead press, and it returns up to 12 seconds of animation on a standard SMPL-H body skeleton, which you then retarget onto your own character. It is a 1B-parameter diffusion transformer trained on more than 3,000 hours of motion data, with a 0.46B Lite version.
In Tencent's tests it clearly beat older open models such as MoMask and DART. It is still the current version, but Tencent has taken down its own HY-Motion web page.
Is HY-Motion 1.0 still available?
Yes. The weights, the code and a free Hugging Face demo are all live, but Tencent's own HY-Motion web page has been taken down.
- Weights and code
- Both models are on Hugging Face and GitHub, and Tencent's team still answers issues there.
- Online demo
- Tencent's Hugging Face Space runs in the browser at no cost.
- Tencent's web page
- The motion page on Tencent's Hunyuan site now shows page not found, and the new address Tencent gave shows no page either.
- Name
- It was first listed as Hunyuan Motion 1.0; Tencent now brands its Hunyuan models as HY.
- Newer version
- Tencent has not released a successor.
Who is HY-Motion 1.0 best for?
HY-Motion 1.0 is best for indie game developers prototyping humanoid animation, filler motion for background characters, and researchers who want an open text-to-motion baseline.
Indie game prototypes
It turns a sentence into a humanoid animation in seconds, which users find quicker and cheaper than setting up motion capture.
Background and placeholder motion
Quick variations for crowds and filler characters, where a little cleanup afterwards is acceptable.
Motion research
Open weights, a published training recipe and Tencent's released SSAE evaluation code make it a baseline to build on.
What's included with HY-Motion 1.0?
Text-to-motion from English prompts, an optional prompt rewriter that also sets the length, standard and Lite models, FBX export, seed variations, and batch or local web app use.
- Text to motion
- Describe a single person's action in English, ideally under 60 words, and get a skeleton animation at 30 frames per second.
- Prompt rewriter and duration guess
- An optional language model restructures your prompt for the model and predicts how long the motion should last.
- Standard and Lite models
- The 1B model needs 26 GB of GPU memory; the 0.46B Lite version needs 24 GB.
- FBX export
- The code writes FBX files for 3D tools when the FBX SDK Python package is installed.
- Variations and control
- Generate several takes of one prompt from a list of seeds, and set how closely the motion sticks to the text.
- Batch and local app
- A command-line script runs whole folders of prompts, and a local Gradio app previews each motion in 3D.
How much does HY-Motion 1.0 cost?
HY-Motion 1.0 is free: Tencent publishes both models as open weights and runs a free demo on Hugging Face, so the only cost is a GPU with 24 GB or more.
- 1B parameters
- At least 26 GB of GPU memory
- Tencent HY-Motion 1.0 Community License; weights on Hugging Face, code on GitHub
- Tencent HY-Motion 1.0 Community License
- 0.46B parameters
- At least 24 GB of GPU memory
- Clips from 0.5 to 12 seconds
- Prompt rewriting and example prompts built in
- Runs on Hugging Face's shared GPUs
There is no paid plan or API. The license is royalty-free but does not cover the European Union, the United Kingdom or South Korea, and companies whose products had more than 1 million monthly active users need a separate license from Tencent. Outputs may not be used to improve other AI models, published AI-made content must be labelled as machine-generated, and Tencent claims no rights in the motions you make. The memory figures leave out the optional prompt rewriter. Full pricing on github.com. We checked these prices on .
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HY-Motion 1.0 pros and cons
It is fast and follows prompts closely, but exporting, retargeting and installing it take work, and it only animates one humanoid at a time.
Pros
- Fast: users report a 5-second clip in about 5 seconds, and around 3 seconds per prompt on an RTX 5090.
- Follows detailed prompts closely, down to individual limbs; Tencent's human raters scored it 3.24 out of 5 for following instructions, against 2.31 for MoMask and DART.
- Users call it a cheap stand-in for motion capture for prototypes, indie games and background characters, with less cleanup than camera-based capture.
- Users run it on single consumer cards such as an RTX 3090 or 4070 Ti Super through the community ComfyUI node with a compressed text encoder.
Cons
- Getting animation out is the hard part: FBX export relies on an FBX SDK package that many users could not install, including on macOS and newer Python versions, and the fallback files do not import cleanly into Blender.
- Motion comes on a fixed SMPL-H body with no finger joints, so you must retarget it to your own rig, and users report broken stances and arms when mapping it to Mixamo-style skeletons.
- Setup is heavy for a 1B model: it also loads the Qwen3-8B text encoder, and the optional prompt rewriter pushed even a 32 GB RTX 5090 out of memory.
- It covers one humanoid at a time, with no animals, two-person scenes, loops or object contact, and users report feet sliding or floating in fast motions.
What are the best HY-Motion 1.0 alternatives?
Motorica for hosted game-ready locomotion, Cascadeur for hand-keyed animation and cleanup, and Plask Motion for capturing your own moves from video.
MotoricaFreemiumChoose it when you want hosted, game-ready locomotion with solid foot contact that works with Unreal, Unity, Maya, Blender and Godot, without running a model yourself; it has a free Lite tier.
CascadeurFreeChoose it when you want to keyframe or clean up motion yourself with physics tools and AI in-betweening; FBX export starts at $19 a month on Indie, since the free plan saves only its own format.
Plask MotionFreeChoose it when you can act the motion out on camera; its free plan captures 15 seconds of video a day, including hands and several people, and exports FBX, GLB and BVH.
Questions about HY-Motion 1.0
What is HY-Motion 1.0?
HY-Motion 1.0 is Tencent's open-weights model that turns a short English prompt into skeleton-based 3D human animation, for game developers, animators and researchers with a 24 GB GPU.
Who is HY-Motion 1.0 for?
HY-Motion 1.0 is best for indie game developers prototyping humanoid animation, filler motion for background characters, and researchers who want an open text-to-motion baseline.
Is HY-Motion 1.0 free?
Yes. HY-Motion 1.0 has a free HY-Motion-1.0 plan: 1B parameters.
What are the best HY-Motion 1.0 alternatives?
The closest alternatives on Recaply are Motorica, Cascadeur and Plask Motion.
Where can I try HY-Motion 1.0?
On its official website, github.com.
Can I use HY-Motion 1.0 commercially?
Yes, in most places. The Tencent HY-Motion 1.0 Community License is royalty-free, but it does not apply in the European Union, the United Kingdom or South Korea, and companies with more than 1 million monthly active users need a separate license. You may not use its outputs to train other AI models.
What GPU does HY-Motion 1.0 need?
Tencent lists at least 26 GB of GPU memory for the standard model and 24 GB for Lite, not counting the optional prompt rewriter. To use less, generate one seed at a time and keep prompts under 30 words and motions under 5 seconds.
Can HY-Motion 1.0 animate my own character?
Not directly. It animates a standard SMPL-H body, so you retarget the motion onto your own rig in a 3D tool. It does not animate animals, several people at once, hands and fingers, or loops.
Does HY-Motion 1.0 export FBX?
Yes, when the FBX SDK Python package listed in its requirements is installed; without it, the code returns raw motion data instead. That package does not install on macOS, and Tencent has said it is looking at other formats such as GLB.
Our verdict
HY-Motion 1.0 is the open text-to-motion model to try first if you animate humanoid characters.
It follows prompts far better than older open models in Tencent's tests, users find it fast, and it costs nothing beyond a 24 GB GPU.
- Skip it for
- Hand animation, creatures, two-person scenes or loops, and anyone in the EU, UK or South Korea, where the license does not apply.
- Check first
- Test FBX export and retargeting onto your own rig before building a pipeline on it.
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