Gregator vs ChatGPT
Pick ChatGPT when you want one assistant for everything: questions, writing, coding, voice chat, and studying from your own notes and files. Pick Gregator when you want a topic researched for you and delivered as a saved, multi-chapter course with footnoted sources, a view of source quality, quizzes, and a tutor that has read the course.
What ChatGPT does well
ChatGPT covers a lot of ground in one place. Its pricing page lists unlimited everyday text chats on every plan (subject to abuse guardrails), web search, file uploads, projects, memory, voice, image creation, and data analysis, with apps on web, iOS, and Android.
For learning, ChatGPT has study mode, available on every plan including Free. OpenAI describes it as step-by-step guidance instead of quick answers: questions, hints, and explanations; lessons that adjust to your level and remember past sessions; knowledge checks with quizzes and open-ended questions; and progress tracking. Its examples include working through a homework problem, preparing for an exam, and turning your class notes into flashcards.
Deep research produces longer, source-based reports. It is limited on Free, expanded on Plus, and at its maximum on Pro.
The strongest case for ChatGPT is your own material. If you want to be quizzed on your lecture slides or have your essay graded against a rubric, ChatGPT can take those files. Gregator researches the open web only and does not accept uploads.
How Gregator works differently
Gregator does the research before the conversation starts. You type a topic, and it plans a curriculum of 1 to 12 chapters sized to that topic, each with a learning objective and 3 to 6 search queries. It searches seven providers, including arXiv and Wikipedia, extracts up to 18 sources per chapter with at most 4 from any one domain, and writes each chapter from its 7 most relevant sources under a domain and perspective diversity cap.
Every source is classified for type (peer-reviewed, institutional, journalism, community) and evidence quality. The course shows a trust overview with the mix of source types and an evidence-quality label, and each chapter shows how many sources and peer-reviewed sources it draws on. Individual source scores are not displayed.
Chapters run about 700 to 1,200 words, use inline footnote citations placed after the claims they support, and end with a Sources list. For a topic the planner marks as contested, the research also searches for criticism, and the writer is told to present each position with citations. A course-level review then checks the whole course for redundancy, difficulty spikes, coherence gaps, and one-sided sourcing, and revises flagged chapters automatically.
The result stays in your library as a course, not as a chat log. Each chapter has up to five multiple-choice questions with an explanation for every option, and the course ends with a final quiz. Grading happens on the server, and a wrong answer links back to the section that covers it. Greg, the tutor, reads your chapters, can search the course and the web, remembers what you tell it, and can offer a deep dive that adds a new chapter. Gregator tracks progress per chapter and recommends what to study next.
Side by side
| ChatGPT | Gregator | |
|---|---|---|
| Output | Chat replies, deep research reports, files, images | A saved course of 1 to 12 chapters with key takeaways |
| Sources and citations | Web search on every plan; deep research produces source-based reports | Inline footnotes and a Sources list per chapter; research across seven search providers including arXiv and Wikipedia |
| Source credibility | Not described on the pages reviewed | Every source classified for type and evidence quality; course trust overview and per-chapter counts |
| Learning features | Study mode on every plan: guided questions, quizzes, open-ended checks, progress tracking; voice chat | Server-graded quizzes linked to chapter sections, Greg tutor, deep dives, progress, recommendations; chapter narration on paid plans |
| Your own files | File uploads on every plan, limited on Free | Not supported; open web only |
| Pricing (as of October 2026) | Free $0; Go $8/month (may include ads); Plus $20/month; Pro from $100/month | Free $0 for 3 courses in total; Starter $9.99/month; Pro $19.99/month |
| Best for | General help across many tasks, and studying your own material | Learning a new topic from researched, cited, structured chapters |
When to choose ChatGPT
- You want one assistant for writing, coding, analysis, images, and everyday questions.
- You want to study from your own notes, slides, or readings.
- You want a live voice conversation.
- You want a native app on iOS or Android, or you study in a language other than English. Gregator is English-first and runs as an installable web app.
- You already pay for ChatGPT and a guided chat is all you need.
When to choose Gregator
- You are starting a topic from zero and do not know which sources to trust or what order to learn things in.
- You want the material researched across many sources and written up as chapters you can return to.
- You want to see the balance of peer-reviewed, institutional, journalism, and community sources behind a course.
- You want quizzes tied to specific chapter sections, not to the last few messages of a chat.
- You want to listen to each chapter as narration (Starter and Pro), export it as Markdown, or share a public link that anyone can read without an account.
Gregator does not replace a general assistant. It has no file uploads, no PDF export, and no native app. What it offers is a researched course with visible sourcing, and the Free plan includes three courses to try it.