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The API for AI Marking

Co-Pilot for Marking®. Examiner-grade marking and feedback, white-label, built for EdTech platforms, training providers, and awarding bodies.

1,000,000+ Scripts marked for clients
Seconds per response

Accuracy where it matters most

Trusted by national Ministries of Education
Integrated with leading international awarding bodies
Your data is never used to train AI models
Student Response
A
2/3
High Confidence
3.2s

Features

We've built the marking infrastructure we wished we'd had as examiners. Designed for the EdTech platforms, training providers, and awarding bodies integrating AI marking into their own products, without losing the standards a candidate complaint or a regulator's audit will be measured against.

Examiner-grade marking, as an API

Drop-in API

Integrate examiner-grade marking into your platform in days, not quarters. RESTful, well-documented, built for production from day one.

Consistent and defensible

Co-Pilot for Marking® applies the same mark scheme criteria to every response, with full traceability back to those criteria. Calibrated by examiners, auditable end-to-end.

Detailed feedback responses

Return detailed, criteria-anchored feedback to your learners alongside the mark. Calibrated to your mark scheme, in your voice if you need it.

Adaptable

Free-text, mathematical workings, handwriting, diagrams. Any subject, any mark scheme. Tell us what you need marked.

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How It Works

Four steps to faster, fairer marking

Built around how examiners actually work

01

Upload

Submit student responses - handwritten scans, typed text or digital submissions

02

Analyse

AI evaluates responses against your mark scheme criteria in seconds

03

Review

Confidence scoring flags edge cases for human oversight when needed

04

Results

Detailed marks, feedback, and insights delivered instantly

Seconds
per response
Any scale
one paper or thousands
Human-in-loop
when it matters
"After twenty-five years as a chief examiner, I've watched markers be asked to do the impossible. Be fast. Be fair. Be consistent across thousands of scripts. Vision Marker does the part a human shouldn't have to, so the examiner can focus on the part only they can."

Barry Lambert Chief Examiner & Co-Founder

About Us

Barry & James

A father-and-son team building the marking infrastructure they wished they'd had. Barry brings 35 years of teaching, 25 of them as a Chief Examiner. James holds a PhD in Machine Learning and statistics. Together, they've built Co-Pilot for Marking® on examining expertise and AI research in equal measure.

FAQ

Here are the answers to the most frequently asked questions

Our Co-Pilot for Marking® uses advanced AI to automate exam marking, providing accurate, consistent results in seconds. It handles text responses, mathematical workings, and handwritten scripts across any subject or mark scheme.

Talk to us about integrating Vision Marker

A 20-minute conversation, no pitch deck. We'll walk through what your mark schemes look like, how the API fits, and what a pilot looks like.

Get in touch

Contact Us

We reply within 24 hours on weekdays. You can also follow us on LinkedIn.