tFold

Tencent's antibody structure prediction suite - PolyForm Noncommercial licence.

Developer: Tencent AI4S

Not for commercial useNo commercial option at any price

Overview

Developer
Tencent AI4S
Commercial rights
Non-commercial
Commercial cost
No commercial option
Compute
Single GPU
Open weights
Yes
Last verified

Capabilities

Predicts antibody and nanobody structures, and antibody-antigen complexes, from sequence without MSAs. Input: heavy/light (or VHH) sequences, plus antigen sequence for the complex mode; output: predicted Fv or complex structures with confidence estimates.

When to use it

Academic antibody-antigen complex prediction. In a company, use ImmuneBuilder/ABodyBuilder3 for Fv structures and Boltz-2 or Chai-1 for complexes.

Input / Output

Input
heavy/light (or VHH) sequences, plus antigen sequence for the complex mode
Output
predicted Fv or complex structures with confidence estimates

Compute

Single GPU. Other tools with this compute profile →

Commercial Licensing

Commercial rights — may a company use it?

Not for commercial use

Licence as writtenPolyForm Noncommercial License 1.0.0

The repo LICENSE is PolyForm Noncommercial 1.0.0, which grants rights only for noncommercial purposes. Contrast with the same lab's IgGM, which is MIT and explicitly commercial-friendly - read each repo's own file.

Original sources — read on 15 Oct 2026
  1. raw.githubusercontent.com/TencentAI4S/tfold/master/LICENSE

The licence limits use to non-commercial purposes; a company needs a separate agreement.

Commercial cost — is commercial use free of charge?

No commercial option at any price

No fee and no commercial route: PolyForm Noncommercial grants noncommercial rights only, and no commercial licence is offered on the repo.

Original sources — read on 15 Oct 2026
  1. raw.githubusercontent.com/TencentAI4S/tfold/master/LICENSE

Price and rights are separate: this panel is about money, the panel above is about permission.

  • Commercial OK ≠ Free of charge. A tool can be licensed for company use and still need a paid licence for a dependency (BindCraft → PyRosetta).
  • Free download ≠ Commercially licensed. Weights you can download at no cost may still forbid commercial use (AlphaFold 3).
  • Unverified ≠ Commercially permitted. If no published statement settles it, treat it as unknown — not as a yes.
  • Every component counts. Each status considers the code licence, the model-weights terms, required dependencies and any terms of use.

Model Weights

Open weights. A separate weights licence is Not documented as its own field; where weights carry different terms from the code, that is stated in the licence explanation above.

Dependencies

Not documented as a separate field. Any dependency that affects commercial use (for example a paid PyRosetta licence) is named in the licence and cost explanations above.

Official References

Official site / repo
github.com/TencentAI4S/tFold

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