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Chai Discovery vs Profluent

A side-by-side comparison of Chai Discovery and Profluent, two Science tools, drawn from Ignaite's continuously-verified listings.

Compared from listings verified as of

Chai Discovery

Science

Foundation models for molecular structure and antibody design.

View Chai Discovery

Profluent

Science

Generative protein language models that design novel proteins.

View Profluent

At a glance

Feature comparison of Chai Discovery and Profluent
AttributeChai DiscoveryProfluent
CategoryScienceScience
Pricing (differs)FREEMIUMPAID
License (differs)Open coreProprietary
DeploymentCloudCloud
Platforms (differs)Web, APIWeb
Model support——
Vendor (differs)Chai DiscoveryProfluent Bio

The honest brief

Chai Discovery

One of the few drug-discovery shops to ship open model weights plus a free in-browser server, rather than locking everything behind pharma partnerships.

  • Free in-browser structure prediction
  • Open Chai-1 weights
  • SOTA protein-ligand accuracy
  • OpenAI-backed
  • Weights non-commercial only
  • Chai-2 not open
  • Young company (2024)
  • Core IP still proprietary

Profluent

Pairs frontier protein LLMs with openly released designs like OpenCRISPR-1, while most peers keep AI-designed molecules proprietary.

  • ProGen protein-LLM lineage
  • Open-released gene editor
  • Nature-published work
  • Eli Lilly and IDT partnerships
  • Partnership/licensing only
  • No self-serve platform
  • Open releases are sequences, not a service
  • Opaque pricing
Chai Discovery detailsProfluent detailsAll Science apps