ExamGPT, developed by Excelas, is an AI-powered exam marking service designed specifically for GCSE mock exams in UK secondary schools. Built to support teachers—not replace them, ExamGPT automates the marking process, saving time, improving marking consistency, and delivering detailed feedback that helps boost student performance and staff retention.

With full support for major UK exam boards (AQA, Edexcel, OCR, WJEC) and core STEM subjects including Mathematics, Physics, Biology, and Chemistry, ExamGPT integrates seamlessly into school workflows. It uses scanned student papers, generates accurate feedback in minutes, and significantly reduces workload, often by 50% or more.

Designed for ease of use, ExamGPT works with any scanner or smartphone and produces instant reports in PDF and Excel formats, helping teachers and departments make data-informed decisions.

What are the key features of ExamGPT?

AI-driven mock exam marking

ExamGPT replaces manual exam marking with automated, AI-powered assessment:

• Delivers marking accuracy of 90–98%, closely aligned with experienced teachers.

• Reduces cost by up to 90% compared to traditional marking services.

• Tested on 1,200+ real student responses across subjects and boards.

This results in faster turnaround, reliable assessment, and significant time savings for educators.

Streamlined three-step workflow

The platform is built to be simple and efficient, requiring no technical training:

1. Scan: Use any standard scanner or smartphone camera to digitize exam papers.

2. Upload: Submit PDFs directly through the ExamGPT platform.

3. Relax: Receive fully marked exams, analytics, and feedback in less than 24 hours.

No special hardware, no software installation, just fast, effective results.

Detailed and differentiated feedback

Unlike traditional marking, ExamGPT provides line-by-line breakdowns and reasoned mark allocations:

• Shows student understanding and pinpointed errors.

• Includes teacher-style explanations and suggestions for improvement.

• Enables personalized feedback at scale, which would be impractical manually.

This enhances both student learning outcomes and teacher insight.

High-performance marking engine

Internal benchmarks show ExamGPT outperforms leading AI models (Gemini 2.5, Claude 3.5, GPT-4o) on educational tasks:

• +6.2% higher accuracy in GCSE Mathematics (MSEG)

• +5.8% higher accuracy in GCSE Physics (PSEG)

Designed specifically for UK secondary assessment, the model is fine-tuned for exam content and pedagogy.

Time and cost savings for schools

ExamGPT has been proven to save schools substantial time and budget:

• Up to 4 hours saved per teacher per batch.

• Just £0.99 per exam, with estimated ROI over 650%.

• Sample calculation: 10 teachers × 120 mocks/year = 300 hours saved annually, worth £9,000+ in teaching time.

Use the built-in ROI calculator to estimate your school’s savings.

Seamless integration with school systems

The platform is designed to fit into existing workflows:

• Works with any school printer or scanner.

• Supports PDF scanning and Excel data exports.

• Easily integrated into both classroom teaching and department-level analysis.

No additional IT support or infrastructure is required.

What subjects and exam boards are supported?

ExamGPT currently supports GCSE-level exams from all major UK awarding bodies:

Exam Boards:

• AQA

• Edexcel (Pearson)

• OCR

• WJEC

Subjects (GCSE):

• Mathematics: algebra, geometry, statistics, number theory

• Biology: cell biology, genetics, ecology, evolution

• Chemistry: organic/inorganic, physical, analytical methods

• Physics: mechanics, electricity, waves, astrophysics

Coming soon: Computer Science, Engineering, A-Levels, IB qualifications

To summarize

ExamGPT helps UK schools deliver faster, more consistent, and cost-effective mock exam marking with AI. Designed to work with teachers, not replace them, it frees up critical hours, delivers high-quality feedback, and improves assessment equity.

The most chosen AI mock exam marking tool in England, ExamGPT stands out for:

• Exceptional accuracy, outperforming general-purpose AI models.

• Rapid turnaround, with detailed reports ready in under 24 hours.

• Massive time savings, cutting teacher workload by up to 50%.

• Subject and board alignment, tailored for real UK classrooms.

• Unmatched ROI, starting at only £0.99 per paper.

Currently deployed in UK schools and MATs, ExamGPT is already transforming how mock exams are delivered and assessed raising student performance, reducing burnout, and making formative assessment viable at scale.