Compare
Animiotics vs Blender and Molecular Nodes
Molecular Nodes is a free Blender add-on that brings structures, trajectories and cryo-EM data into Blender. Animiotics gives you a finished molecular animation from a description, built and rendered in the cloud, without learning Blender.
What Molecular Nodes is great at
Molecular Nodes, created by Brady Johnston, is free and open source under the GPL. Version 520.2.0, released in September 2026, works with Blender 5.2 LTS and newer. Type a PDB code and it downloads the structure from RCSB. It also imports molecular dynamics trajectories through MDAnalysis, cryo-EM and cryo-ET data, and CellPack ensembles.
If you already know Blender, it gives you complete control over every atom, material and frame, and the results can be stunning. It is the right choice for artists and scientists who want to build everything by hand.
What it asks of you
Blender is powerful and takes time to learn: the interface, geometry nodes, materials, lighting, cameras and keyframes. Rendering happens in Blender on your own machine, and Blender recommends an 8-core CPU, 32 GB of memory and a graphics card with 8 GB of video memory for comfortable work.
What Animiotics does instead
Animiotics also builds its scenes in Blender, on our servers. A frontier AI model downloads the structures, writes and runs the Blender code, reviews rendered frames and fixes problems. You describe the animation; you never open Blender. The finished scene opens in your browser, where you can look around and change objects, colors, camera and timing, and final renders run on cloud GPUs.
Side by side
| Animiotics | Blender and Molecular Nodes | |
|---|---|---|
| Price | From $3.99 a month | Free and open source |
| How you build | Describe it in words, then refine | By hand in Blender's node and animation tools |
| Structures | PDB downloads, your PDB or mmCIF files, AlphaFold search | PDB codes, local files, many formats |
| MD trajectories | In the editor: multi-model PDB, XTC with topology, XYZ, ASE .traj, XDATCAR, H5 | Through MDAnalysis, with its wide format support |
| Cryo-EM densities | Not supported | Supported |
| Rendering | Cloud GPUs | Your computer |
| Works on a phone | Yes, for creating, viewing and sharing | No |
| Time to a first film | About an hour, without your attention | Depends on your Blender experience |
Checked on each vendor's own website in October 2026.
Which one should you use?
Choose Molecular Nodes if you know Blender or want to learn it, need cryo-EM densities or complex trajectory analysis, or want frame-by-frame control at no cost. Choose Animiotics if you need a polished animation this week, do not want to learn 3D software, or work from a laptop or phone.
Questions
Is Molecular Nodes free?
Yes. Molecular Nodes is free and open source under the GPL, and Blender is free as well.
Does Animiotics use Blender?
Yes, behind the scenes. AI-generated scenes are built and rendered with Blender on our cloud computers. You work with the result in the browser.
Can I load MD trajectories in Animiotics?
Yes, in the editor, as atoms and bonds. Supported formats include multi-model PDB, XTC with a PDB or mmCIF topology, XYZ, ASE .traj, XDATCAR and H5, up to 500 MB and 2,000 frames.
Keep reading
Describe it. Watch it move.
Start your first animation from a description, a structure or a photo.