For writers waiting on beta readers
AI Beta Reader: See Where Readers Stop
Paste a chapter and get a beta reader's report: where they were hooked, where they got lost or skimmed, and the exact line where they'd stop.
Free to start. No card needed.
How to get an honest beta read
Ask a beta reader to describe the read, and leave the fixing to you. Tee T., a freelance editor on Reedsy, advises keeping your questions focused on how it felt to read the story, not what they'd do differently1. Her first suggested question is "Were there any spots where you felt bored, confused, or tempted to skim?" Then ask for the line where they'd have put the book down, because a reader who has to name a line can't hide behind "I liked it."
Treat confusion and boredom as different problems. A confused reader lost the thread (too many new names, a jump in time, a fact nobody gave them), and the fix is clarity. A bored reader followed but stopped caring, often in backstory that arrives before the story has earned it. Cut it or save it for later. Then weigh each note by how many readers share it: in Tee T.'s words, "If three people say the same scene feels off, that's worth looking at."
An AI reader needs two more checks. First, flattery. A 2023 study by Anthropic researchers found that five AI assistants often gave more positive feedback on the same text when the user said they liked or wrote it2. Second, your rights. The Authors Guild warns that by default, material you enter into almost all public chatbots can be used to train those models3. So don't say the chapter is yours or that you love it. Ask for quoted lines, not a verdict, and check the training setting before you paste.
How it works
What does an AI beta reader do?
An AI beta reader reads your chapter the way a first reader would and tells you how it felt. River's beta reader finishes the whole chapter, then writes a reader's report in a doc. It says whether it would keep reading, names the line where it would stop (or came closest), and marks the moments it was hooked, got lost or started skimming. Every reaction quotes your words with a paragraph number, so you can find the spot in your own file.
Paste a chapter or drop in a Word or PDF file. River reads as a fan of your genre, which it works out from the pages. You can choose a picky reader, a newcomer to the genre or a teen reader instead. Give it several chapters and you get one report that names the chapter for every quote. If a file looks cut short, the report says so up top and names the last line it read.
It reports and doesn't fix: no scores, grammar notes or rewritten lines, just a reader's honest account and one closing sentence on what it would change first. Afterward, ask for ideas on the slow spots and River points the way without rewriting your chapter. For an editor's notes on stakes and cuts, try the AI book editor. To tighten a passage the reader skimmed, use the AI line editor, and for facts that change between chapters, the plot hole finder.
How it works
From chapter to reader's report
Paste your chapter
Paste a full chapter, or drop in the file, so the reader can show where it stops.
River reads it
It reads to the end, reacting as a first reader would, and quotes every moment it reacts to.
Read your report
Your reader's report lands in a doc you can keep, compare across drafts and ask about.
Revise and rerun
Fix what matters to you, then paste the new draft to see whether the reader keeps going.
Theo had been dumped at his own surprise party, which was a first, even for him.
The restaurant had been in the Caruso family for three generations, ever since his great-grandfather came over from Naples with a recipe and a debt.
Ava explained the zoning dispute in detail: the setbacks, the variance, the hearing in March.
- Hooked"Dumped at his own surprise party." Great first line. I'm in.
- Skimming"Three generations." A history lesson while I wait for the party fallout.
What you'll get
A reader's report that names the line where they'd stop
- The line where a reader would stop, and why
- The spots where they got lost or started skimming
- What pulled them forward, quoted from your chapter
Before and after
Your chapter in. A reader's honest reactions out.
The Ninth Bell of Varrow tolled for the Sundering, as it had since the Accord of Ashes, and Keth Varn-Ilsa, last of the Ilsa line, stood in the Hall of Echoes holding the Shardkey of Morrow. Her uncle, the Regent-Who-Waits, had told her the key would choose. It had not chosen. Below, the Grey Assembly argued about the tithe of salt. She thought of Mira. She thought of the river. She thought about leaving, and how the key would follow her if she did.
Lost: "the Sundering, as it had since the Accord of Ashes." Name after name in one sentence, and I don't know whose story this is yet. Hooked: "It had not chosen." The first thing I understand, and I want to know why. I'd stop here: "Below, the Grey Assembly argued about the tithe of salt." The key won't choose her and we cut to a meeting about salt.
No scores and no fixes. Just what reading it felt like.
What lands in your doc
What's in your reader's report
- Would I keep reading: yes, maybe or no, with the one line that decided it
- Where I'd stop: the exact line, quoted, with what the reader felt in that moment
- Six to 15 reactions, in reading order, each tagged Hooked, Lost or Skimming and quoting your line
- Lost moments say what the reader thought was happening, so you can compare it with your intent
- What pulled me forward: two to four quoted moments that hooked the reader, to protect in revision
- Questions I'm carrying, plus the one thing the reader would change first, as a direction
Questions authors ask
Common questions
What is a beta reader?
A beta reader is someone who reads a finished or nearly finished manuscript and gives the author feedback before publication. Reedsy describes good betas as a test audience1 who regularly read books like yours, so they notice tired tropes and missing pieces. They typically come after alpha readers, who usually see the first draft, and before a professional editor.
How is an AI beta reader different from a human one?
A human beta reader is a real member of your audience. An AI reader can only stand in for one, and it can lean toward telling you what you want to hear2. But it never tires, never goes quiet halfway and can point to the exact line where it drifted. Use it as a first pass, then work through the self-editing checklist before human betas see the pages.
How do I get a beta read with River?
Paste a chapter into the box at the top of this page, or drop in a Word or PDF file, and pick who's reading if you like. River reads to the end and writes a reader's report into your free River workspace. Start with your opening chapter, the one every reader sees first, then try the chapter where your human betas went quiet.
How much do beta readers cost?
Often nothing. Reedsy says unpaid arrangements are the most common among indie authors1, such as writers swapping manuscripts. For paid reads, the Editorial Freelancers Association's 2026 rate chart gives a median range of 0.5¢ to 0.8¢ a word4, about $400 to $640 for an 80,000-word novel. The chart's median fee per project is $150. The types of editing guide explains how a beta read differs from an edit.
Is it cheating to use AI as a beta reader?
Generally not, because a beta read adds no words to your book. The Authors Guild's guidance treats AI used in the background, with none of its output entering your work3, as the least risky kind of use. Amazon KDP doesn't require you to disclose AI-assisted content5: text you wrote yourself and then used AI to edit, refine or error-check. If you have a publisher, check its AI rules too.
Is my chapter private?
Your chapter and the report stay in your own River workspace, not on a public page, and River leaves your file as it is. River's privacy policy says River doesn't use your documents or drafts to train AI models. The AI services that process your chapter work under agreements that keep them from training on it too.
Is the AI beta reader free?
Yes, it is free to start, and you don't need a card. Your reader's report opens in a River workspace, where you can edit it, share it or ask River to change it. Paid plans add more AI use and access to the most advanced models.
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