Ren Blog

Research, product updates, and thinking from the Ren team.

• Teach the AI Your House Style

  Every department marks differently. Ren learns your standard two ways — a style guide that builds from your edits, and a calibration pass you approve before the batch runs.

  2026-08-02 • Product

• Confidence Scores Are Not a Safety Net

  We tested the AI's own confidence score against tens of thousands of production marks. It has almost no range, and it points the wrong way. Here is what we use instead.

  2026-07-27 • Research

• 426 reports at university scale: our IS1108 pilot with NUS Computing

  Our largest university pilot to date. Ren marked individual reports for all 426 students in NUS Computing's IS1108, with feedback grounded in how the module is taught.

  2026-06-14 • Partnerships

• Ren and MENDAKI: closing the feedback gap for A-Level students

  Ren partners with Yayasan MENDAKI to bring AI feedback software to JC students. Faster insight for the learner, less overhead for the tutor.

  2026-05-08 • Partnerships

• Two wins, 5,000 students, four months: Ren's year at N-House Pitch Night

  Ren won NUS Enterprise's N-House Pitch Night for the second year. The trophies are not the headline. The 12 institutional pilots, 50 teachers, and 5,000 students behind them are.

  2026-05-01 • Announcement

• An AI That Scores Perfectly Can Still Be Useless

  It is harder to measure good essay feedback than to check a mark. Here is the methodology we rebuilt, and why it matters for trust.

  2026-02-16 • Research

• Built by People Who Use It

  We run a digital academy on our own product. Here is why that is the fastest way to build something that works.

  2026-02-09 • Product

• Why AI Marking Still Needs Human Oversight

  AI marking tools are powerful. Without a human in the loop, they amplify bias and miss nuance. Here is how we design against that.

  2026-02-05 • Research

• Better Feedback Loops in Education

  How a structured tag system turns individual comments into data a teacher or a department can act on.

  2026-01-20 • Product

• Our Benchmark Results: How Ren Compares to Human Markers

  We tested Ren against experienced teachers on real submissions. Here is what we found.

  2026-01-08 • Research