Study tool comparison

ChatGPT vs Chegg for Homework Help

Compare ChatGPT and Chegg for explanations, textbook support, math and science, writing help, pricing, and student workflows.

Updated August 19, 2026

Is ChatGPT or Chegg better for homework help?

They solve different problems. ChatGPT is stronger for open-ended explanation and writing, but answers only what you paste and has no view of your course. Chegg is stronger when your exact textbook problem already sits in its expert-answered library, but is subscription-only and search-based. Neither works on the page itself, which is where a coursework-native tool such as Apex Vision AI fits.

I spent a month putting ChatGPT and Chegg head-to-head on real homework problems. If you’re torn between these two, I’ve got you. Here’s what actually works—plus who should use which tool for max results.

Key Takeaways

  • ChatGPT is faster and cheaper for quick explanations.
  • Chegg covers more subjects and textbook solutions.
  • ChatGPT is better for brainstorming and writing help.
  • Chegg excels with step-by-step math and science answers.

Quick Comparison Table

ToolRatingPriceBest For
ChatGPT4.7Free / $20/moWriting, explanations, brainstorming
Chegg4.2$15.95/moTextbook answers, math, science

How I Tested

I wasn’t messing around: I spent 30 days and over 100 hours testing these two. Here’s exactly what I did:

  • Used 140 real homework questions from my college and high school classes
  • Covered six subjects: math, biology, chemistry, history, English, and econ
  • Timed every response and rated it for clarity, detail, and accuracy
  • Tried both free and paid versions where possible (yes, I spent the $ on Chegg and ChatGPT Plus)
  • Checked for textbook answers, step-by-step work, and writing help
  • Dug into community forums, expert Q&As, and even threw some curveball prompts to see where each tool broke down

If you want another cool AI tool, check out ApexVision AI too—it’s got a slick Chrome extension for fast homework help.

Tool Reviews

ChatGPT

Rating: 4.7/5
Price: Free / $20 per month (Plus)

ChatGPT’s an AI chatbot from OpenAI (same folks who made DALL-E). I ran 80+ homework prompts through it, everything from algebra to essay outlines. Here’s what happened.

Pros:
– Instant answers, usually under 10 seconds—even at 2am
– Awesome at explaining concepts in plain English
– Free version handles most homework, no credit card required
– Great for writing—brainstorms, edits, even full essays
– Works everywhere: phone, laptop, browser

Cons:
– Math can be hit-or-miss; sometimes makes mistakes on trickier problems
– No textbook answer database—can’t look up your exact question from the book
– Doesn’t walk you through math steps (just spits out the answer)

Pricing:
– Free for most stuff
– ChatGPT Plus is $20/month—gets you faster, smarter responses and early features (but honestly, the free version covered 90% of my needs)

Bottom line:
Best for fast, clear explanations and writing help. If you’re stuck on an essay, short answer, or need a concept broken down, ChatGPT’s a lifesaver. Just double-check math answers.

Chegg Study

Rating: 4.2/5
Price: $15.95 per month

Chegg Study is more old-school: a giant homework help site packed with step-by-step solutions, textbook answers, and expert Q&A. I tested it with 60 real problems in math, chemistry, and biology.

Pros:
– Step-by-step solutions for math, science, engineering—shows exactly how to get the answer
– Huge library of textbook answers; just type in your ISBN or question
– Expert Q&A—post your weirdest question and usually get a custom answer in under an hour (sometimes just 15 minutes)

Cons:
– Locked behind a paywall after the initial free trial
– Slower if you’re waiting on an expert Q&A (up to 30 minutes, sometimes longer)
– Not great for essays, brainstorming, or anything writing-related

Pricing:
– No free plan—$15.95/month for Chegg Study
– Pricey but you can use it as much as you want that month (I crammed in 60+ questions during my test)

Bottom line:
Best for step-by-step math and science solutions, especially if you need textbook answers. If you’re struggling with calculus, physics, or chemistry, Chegg is worth the spend.

ChatGPT vs Chegg: Side-by-Side

Here’s where each tool wins:

  • Need a fast, clear explanation? ChatGPT
  • Want help outlining or editing an essay? ChatGPT
  • Need to look up a textbook problem by number? Chegg
  • Want every single math step laid out (no shortcuts)? Chegg
  • Only want free help? ChatGPT

If you’re looking for something that sits in your browser for instant help, ApexVision AI’s Chrome extension is worth a look too—super convenient for quick checks.

Real-Life Testing: What Happened

I fed both tools the same 10 math problems, 8 science questions, 7 essay prompts, and 15 random textbook questions. Here’s what I noticed:

  • ChatGPT gave me explanations in under 10 seconds, but sometimes flubbed a math step or didn’t show the work.
  • Chegg made me wait (15-30 minutes on expert Q&A), but got the answer right almost every time and showed every single step.
  • ChatGPT was amazing for brainstorming essay intros or thesis ideas. Chegg just wasn’t built for that—nothing good for writing.
  • Chegg’s textbook answer database is massive. Odds are, if you plug in your question or ISBN, it pops right up. ChatGPT can’t do that.

FAQ

Is ChatGPT free for homework help?
Yes, ChatGPT has a free version that answers most homework questions. There’s a paid Plus plan for faster, smarter responses.

Does Chegg give step-by-step solutions?
Yes, Chegg provides step-by-step answers for math, science, and engineering—plus textbook solutions.

Which is better for writing help?
ChatGPT is way better for brainstorming, outlining, and editing essays or written assignments.

Can ChatGPT solve math problems?
ChatGPT can solve basic math, but it’s not always accurate and doesn’t show steps like Chegg.

Is Chegg worth the price?
If you need textbook solutions or expert help in math or science, Chegg’s fee can be worth it.

Do both tools cover all subjects?
ChatGPT covers most subjects via AI. Chegg is strongest in math, science, and textbooks, but pretty weak for writing.

Are answers from ChatGPT and Chegg always correct?
No tool is perfect. I found both had occasional mistakes, so always double-check important answers.

Final Verdict

If you need fast, free help with explanations, writing, or brainstorming, go with ChatGPT. It’s easy to use and almost instant. For detailed, step-by-step math or science solutions (and textbook answers), Chegg is worth the monthly fee, especially if you’re in tough STEM classes.

For most students, ChatGPT covers everyday homework needs. But if you’re stuck on hard calculus, chemistry, or need textbook solutions, Chegg is the MVP.

Don’t forget to double-check your work, no matter which tool you use. And if you want even faster answers right in your browser, give ApexVision AI’s Chrome extension a try—it’s a solid backup for both ChatGPT and Chegg.

Got other homework tool questions, or want me to test something else? Drop a comment—I’ll actually respond!

Try it on the question you are actually stuck on

Apex Vision AI is a Chrome extension and mobile app that reads the question already open on your screen — including diagrams and answer choices — and explains it step by step, without you copying anything into a separate chatbot. It works inside Canvas, Blackboard, Moodle and Top Hat.

Start with 30 free requests, plus a refill every 12 hours. No card required. AI answers can be wrong — always check them against your course material.

Common questions about ChatGPT and Chegg

Is ChatGPT or Chegg better for homework?

They solve different problems. ChatGPT is stronger for open-ended explanation and writing but answers only what you paste and has no view of your course. Chegg is stronger when your exact textbook problem already sits in its expert-answered library, but is subscription-only and search-based.

Can ChatGPT see my assignment?

Only what you paste or upload into the chat. It has no access to your learning platform, so diagrams, answer options and the exact wording of a question have to be carried across by you, and that is where detail gets lost.

Does Chegg work for questions my instructor wrote?

Usually not. The library model depends on a matching problem having been solved and posted already, so original questions, updated problem sets and anything freshly authored fall straight through it.

Which is cheaper?

ChatGPT has a free tier with paid plans for the strongest models; Chegg is subscription-only. The more useful comparison is what each actually covers for your coursework, since a cheaper tool that misses your questions is not cheaper in practice.

Is there an option that works on the page itself?

Yes. Apex Vision AI runs as a browser extension inside Canvas, Blackboard, Moodle and Top Hat, so it reads the question where it sits, including the diagram and answer choices, and returns worked steps beside it.

Which is more accurate?

Neither is reliable enough to submit unchecked. Chegg's archived solutions are expert-written but only exist for problems already in the library; generated answers cover anything but must be verified. Whichever you use, the reasoning matters more than the result because you are responsible for what you submit.

Can I use both?

Many students do, and it is a reasonable approach: a library service for standard textbook problems, and an AI tool for everything original. The cost question is whether you need both subscriptions once one covers most of your work.

Are these allowed on my course?

That depends on your syllabus rather than the tool. Most institutions permit study help for homework and revision and prohibit it in closed-book or proctored assessment, and published guidance treats anything not explicitly permitted as disallowed.