AI Molecule Generator Molecules, proteins and crystals, free
Free. Use your own Anthropic or OpenAI key.
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An example structure
A sample file from the viewer, from the same sources the AI uses: PubChem, the Protein Data Bank, the Crystallography Open Database or a textbook lattice.
Watch how it works
How it works
- 1. Describe it or add a photoType what you want in plain words, with sizes if you know them, or add a photo as a reference. Describe an object or a person.
- 2. The AI builds and checks itThe AI writes an OpenSCAD program for an object, or sets up the character generator for a person. It looks at six rendered views of the result and fixes what is wrong, up to five builds per message.
- 3. Refine and exportThe model opens in the viewer at real size. Ask for changes in the chat, move the sliders, then download it or pick a format from the Export menu.
Why make it with AI here
- Named compounds come from PubChem, proteins, DNA and complexes from experimental Protein Data Bank entries, and crystals from the Crystallography Open Database.
- New or modified small molecules are built from SMILES and relaxed with the MMFF94s force field, then checked for formula, stereochemistry, strain and clashes.
- Proteins open as a cartoon with their ligands as ball and stick, small molecules as ball and stick, and a space-filling layer shows each atom at its van der Waals radius.
Prompts to try
Click one to open it in the AI panel, then change the sizes to suit.
Getting the structure out
- Download the SDF (small molecules) or CIF (proteins and crystals) from the version list in the AI panel.
- For a 3D model, open the Export menu and choose GLB, glTF, OBJ, STL, 3MF, PLY, FBX or USDZ.
- Save a PNG of the view, or a self-contained HTML page that opens the structure in 3D in any browser.
The SDF and CIF keep the atoms, bonds and cell for chemistry software. The 3D exports are meshes of the structure as drawn, for renders, 3D printing, AR and presentations.
Best export formats: GLB, STL, USDZ, PNG
Open AI Molecule Generator files in the free AI Molecule Generator viewer
Good to know
Proteins come only from experimental entries in the Protein Data Bank: a protein with no published structure cannot be made, because the tool does no structure prediction. Molecules built from SMILES are computed models, and metal complexes such as ferrocene come from crystal structures in COD.
Cost and privacy
You use your own Anthropic or OpenAI API key. It is stored only in your browser and sent only to that provider, which bills you directly: a model typically costs $0.05 to $0.30 at Standard quality and up to about $1 at Detailed, and Innerscene charges nothing. Your key and prompts are not sent to Innerscene; we record anonymous usage statistics such as the steps used, the model chosen, token counts, a cost estimate and whether a model was made.