BindCraft2 Released: Code Open-Sourced Same Day, Free for Commercial Use

Martin Pacesa's lab released BindCraft2 (BC2), open-sourcing the complete code on GitHub the same day — free for both academic and commercial use — without waiting for the accompanying paper. The release was deliberately timed ahead of the new Adaptyv–Anthropic protein design competition so participants could use it immediately. It is the lab's first major version release.

Confirmed

• Code open-sourced same day; free for academic and industrial use
• Release timed before the Adaptyv–Anthropic competition for immediate adoption
• BC2 is much faster than the original PyRosetta-based BindCraft and supports a broader range of therapeutic protein formats
• BC2 unifies workflows covering de novo miniproteins and sc-formats (per repost summaries)
• The tool is available on the Ariax platform

Why it matters

• The team described the original BindCraft as the "DeepSeek moment" of protein design; BC2 extends it in speed and applicable protein formats, further lowering barriers
• The "code first, paper later" release with a free commercial license gives competitors and industry an immediately usable toolchain

2026-09-21 ~ 2026-09-22 · 5 related posts

• BindCraft2 protein design suite launches with full open-source code, free for academic and industry use — mmbronstein · 2026-09-21
• BindCraft2 released early with open code ahead of Adaptyv-Anthropic protein design contest testing 5,000+ designs — anshulkundaje · 2026-09-21
• BindCraft2 launches with major speedups, free for academic and commercial use — AllThingsApx · 2026-09-22

2 near-duplicate retellings: AllThingsApx · iskander