GradeLab vs HARPA AI

GradeLab is an assessment platform built for schools, universities, coaching centers, and government exam bodies that need to grade handwritten and digital exams faster without giving up teacher control. Upload scanned answer sheets or run online tests, and the system applies your rubrics to score essays, math, diagrams, and mixed-format papers while flagging anything that needs a human review.

What sets it apart is the focus on real exam workflows: OCR trained on student handwriting across 30+ languages, on-screen marking for distributed examiners, question generation from PDFs, LaTeX exam paper formatting, and REST APIs for LMS and EdTech integrations. Institutions can deploy on-premise so exam data stays inside their network.

GradeLab targets K-12 schools, higher-ed departments, test-prep centers, corporate training teams, and public-sector assessment programs that process large paper volumes and want consistent grading with analytics parents and administrators can actually read.

HARPA AI is a browser extension that puts GPT-5.4, Claude 4.6, Gemini 3.1, DeepSeek, and Perplexity on any web page you visit. Press Alt+A to summarize YouTube videos, draft Gmail replies, rewrite selected text, monitor pages for price drops, and run 100+ page-aware automations without copying content into a separate chat window.

Unlike standalone ChatGPT tabs, HARPA reads the page you are on, so summaries, email drafts, and data extraction stay grounded in the actual source. It also bundles web monitoring, SEO keyword research, Midjourney prompt builders, and Zapier or Make.com triggers in one sidebar, which general chatbots do not ship out of the box.

Marketers, researchers, recruiters, and developers use HARPA to speed up search, inbox triage, copywriting, and lightweight browser automation. The extension runs locally, does not log conversations by default, and supports local Llama models plus your own API keys if you want full control over data routing.