Blog post published March 25, 2026

Ultra-fast Binder Optimization with RamaX Opt


Today, we are unveiling RamaX Opt, our ultra-fast sequence optimization workflow. We share results demonstrating 5-50x affinity maturation across 4 binder sequences, plus sequence liability removal – all in ~1 week.


To our knowledge, this is the fastest affinity maturation method available (outperforming even the most advanced existing AI approaches). Building on the binder discovery capabilities of RamaX, you can now improve affinity and remove sequence liabilities from initial hits within the same timeline.

What RamaX Opt can do now

Here’s a quick summary of the key results:

  • Improve affinity rapidly: Achieve significant, 5–50x affinity improvements with a 1-2 week turnaround.
  • Multi-objective sequence optimization: Optimize, humanize, and remove liabilities in your sequences simultaneously with improving affinity.

Weeks to a Lead Binder

For us, this update solves another piece of the puzzle for end-to-end binder design. By linking DiffuseSandbox (design), RamaX Discovery (hit discovery), and RamaX Opt (optimization), you can move from design to a validated lead candidate all within weeks. 

Powering the Next Generation of Foundation Models

RamaX Opt is more than an optimization tool; it is a core component of our data strategy. Our fast experimental platforms are designed to generate high-quality datasets that will make future protein foundation models more accurate, versatile, and powerful.

Partner with Us

We're excited to begin offering RamaX Opt as a workflow. Fill out the intake form, or get in touch to discuss how we can work together to fundamentally accelerate drug design!

In addition, we're actively looking for stellar computational and experimental scientists to grow our team. If you're excited about the problems we tackle, work with us by joining our team.

— The Diffuse team

Contact Us

Email

info@diffuse.bio

Headquarters

San Carlos, CA

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We are eager to connect with you.

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