IgBert / IgT5

Exscientia's paired-antibody BERT and T5 models, MIT licensed on Hugging Face.

Exscientia

What it does

Encode or generate antibody sequences with paired heavy+light context. Input: heavy and light chain sequences (space-separated residues, paired or unpaired); output: per-residue and sequence embeddings, masked-residue predictions (IgBert) or sequence-to-sequence generation (IgT5), for naturalness scoring, humanness work and property prediction.

Commercial use

Commercial use OK

Licence as writtenMIT License (as declared on the model cards)

Both model repositories declare the MIT licence in their card metadata on Hugging Face, covering the published weights; the models are ungated and download without an access request. Verified against the Hugging Face model API for Exscientia/IgBert and Exscientia/IgT5.

The licence read at the source allows use by a company. Attribution or copyleft conditions may still apply — read the note.

Is commercial use free of charge?

Free for commercial use

Free: MIT-declared weights, public download, no access request and no fee.

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

When to use it

A commercially clean antibody language model pair, trained with paired-chain context - useful alongside AbLang2 for scoring designs. IgT5 if you want generation, IgBert if you want embeddings.

Facts

Maker
Exscientia
Cost for commercial use
Free for commercial use
Compute
Single GPU
Open weights
Yes
Licence
MIT License (as declared on the model cards)
Last verified