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September 2025#

This is the fifth issue of our new monthly newsletter, and we have a huge announcement to make:

SAMSON is now free for non-commercial use!#

Starting this week, we are making the entire SAMSON molecular design platform - SAMSON + every SAMSON Extension on SAMSON Connect - free for non-commercial use.

This means you can now use SAMSON at no cost in academic and nonprofit settings for:

  • Education (teachers, students, classrooms)
  • Academic & publicly funded research
  • Personal projects (no revenue, no paid consulting)

If this is your case, you can activate your free non-commercial license yourself by visiting the Pricing page on SAMSON Connect and clicking on the Switch to free non-commercial license button (which becomes visible when you sign in):

Manage your plan: Switch to free non-commercial license

This will grant you a free Expert plan (the new name of the Ensemble plan) and make all SAMSON Extensions free to add on SAMSON Connect. This includes extensions for docking, simulating, animating, scripting, etc. (as you know, most features run locally, but some optional calculations run in the cloud, such as structure prediction and cloud simulations - these require computing credits).

When your work involves paid services, consulting, product development, or commercial R&D, just visit the Pricing page and select one of the commercial plans. You can later revert to non-commercial use.

If you are unsure whether you are eligible to a free non-commercial license, please just reply to this email and we'll work it out with you.

Of course, feel free to share the news with your friends, students, and colleagues (and everyone else 😊).

SAMSON 2025 R3 is now available#

This is a small release, as the upcoming data science features are still in development, but it has several quality-of-life improvements, including:

  • Extended NSL: the Node Specification Language has more attribute spaces and attributes, to facilitate further advanced selections. You can learn more about this in the corresponding documentation page (and SAMSON AI can convert your natural language queries into NSL expressions 😉 : just use the /nsl command, or even the /select command to directly select whatever is matched by the NSL expression).
  • Improved Gaussian surfaces: the surface topology has been improved when ligands are covalently bound to proteins.
  • Clickable tooltips: all links contained in tooltips are now clickable when the tooltips appear while hovering a command (before, the links were only clickable when the tooltips were shown as results of Find everything). We also added a shortcut to ask SAMSON AI in each tooltip:

Clickable tooltips

Clicking the tooltip automatically asks SAMSON AI for a description (in case the one in the tooltip is not sufficient), tips and examples:

Ask SAMSON AI called from tooltips

SAMSON Cloud#

SAMSON Cloud images now include GROMACS 2025.3. Want to run GROMACS in the cloud? Try our GROMACS Wizard or contact us.

We’ve also rolled out service updates for Boltz 2 and Chai-1.

SAMSON Extensions#

What’s new#

Many SAMSON extensions were updated this month:

Minor improvements#

SAMSON AI Assistant, Secondary Structure visual models, Polyhedral visual model, AutoDock Vina Extended, and various importers.

Upcoming Events#

Stephane Redon (CEO) and Dmitriy Marin (CSO) will be at the Drug Discovery Chemistry (Europe) conference in Barcelona, Spain, November 11-13, 2025. Want to discuss how SAMSON can integrate your resources and streamline molecular design? Schedule a chat with them.

Coming next#

We will introduce a few major developments before the end of the year, and we can't wait to announce them. Meanwhile, if you have feature requests or feedback, please let us know!

Thank you for being part of our growing community!