QuillBot vs ToHuman

What is QuillBot?

QuillBot started in 2017 as a single paraphrasing tool and has grown into a four-tool AI writing suite used by 50M+ students, researchers, ESL writers, and content teams. The four products are tightly integrated: paste text once and you can paraphrase it, humanize it (so it passes AI detection), check whether the original was AI-generated, or rewrite it in QuillBot's full Flow editor without switching tools.

In testing on April 2026, we ran 60+ paragraphs of ChatGPT-generated text through QuillBot's pipeline. The AI Detector flagged 100% as AI; after running the Humanizer in Advanced mode, the same text scored 0% AI on QuillBot's own detector and dropped below detection thresholds on GPTZero and Originality.AI in most cases. The Paraphraser's Humanize mode shows changed words inline so you can verify edits before accepting them, a level of transparency competitors like Wordtune and Jasper don't match.

Full detail in our QuillBot review.

What is ToHuman?

ToHuman rewrites AI-generated text into more natural prose. It runs in the browser and through an API, with integrations documented for n8n, Make, Zapier, LangChain, CrewAI, AutoGen and an MCP server.

Two things are worth stating plainly, because this category invites claims that cannot be checked. First, the free tier is real: 2,500 words a month with no credit card, including every humanization intensity, document history and API access at 60 requests a minute.

Full detail in our ToHuman review.

Key differences at a glance

• QuillBot Premium starts from $8.33 a month on the annual list. ToHuman Pro is $19 a month, with a free tier at 2,500 words.
• ToHuman includes API access on its free plan at 60 requests a minute. QuillBot is primarily an editor interface.
• ToHuman documents integrations for n8n, Make, Zapier, LangChain, CrewAI and an MCP server. QuillBot does not compete on that.
• QuillBot covers paraphrasing, grammar and citations. ToHuman rewrites and nothing else.

Feature-by-feature comparison

Both feature lists below are taken from each tool's own review on this site, where they were checked against the vendor's documentation.

Pros and cons

QuillBot

• 4 tools in one suite, replaces multiple subscriptions
• Best price/feature ratio (Premium from $8.33/mo annual)
• AI Detector is fully free, no signup, unlimited use
• Humanizer Advanced mode passes most AI detectors in testing
• Native integrations with Google Docs, Word, Chrome

• Free tier word limits feel tight after a few uses
• Not a full content generator like ChatGPT / Jasper
• Aggressive paraphrasing can shift meaning, always review output
• Grammar checker is good but Grammarly Pro edges it for nuance
• Some universities ban AI-paraphrased work, check your policy

ToHuman

• Genuinely free tier with no credit card
• API access included on the free plan
• Wide, documented automation integrations
• One-off $9 pack avoids a subscription
• Vendor states text is processed on a self-hosted model

• Bypass and undetectability claims are unverified by ToolChase
• 2,500 free words is a small allowance for regular use
• Only one paid subscription tier
• Output still needs a human read before publication

Pricing comparison

QuillBot: Free tier (incl. AI Detector) · Premium from $8.33/mo (annual list; $4.17/mo promo) Free plan: Yes, incl. unlimited AI Detector.

ToHuman: Free $0 forever (2,500 words/mo) · Pro $19/mo (100,000 words/mo) · $9 word pack (50,000 words) Free plan: Yes, 2,500 words a month, no credit card.

Both figures were read from each vendor's own live pricing page in August 2026 and match that tool's review on this site.

Which tool should you choose?

QuillBot if you want paraphrasing, grammar and citations in one place. ToHuman if you need a rewriting step you can call from an automated workflow.

Choose QuillBot if you need…

• paraphrasing, grammar and citation tools in one subscription
• a mature product with a long track record

Choose ToHuman if you need…

Best fit: Writers and teams who want a rewriting pass inside an automated pipeline, and who will judge the output on how it reads rather than on a detector score.

• a rewriting pass inside an automated pipeline
• the largest free monthly word allowance
• a documented API on the free plan

Final verdict: QuillBot vs ToHuman

These are not really the same product. QuillBot is a writing suite where humanizing is one mode among several, and it scores 4.6 because the rest of the suite is genuinely good. ToHuman does one thing, exposes it through an API on the free plan, and runs its own model rather than relaying your text to a third party. We have not published a score for ToHuman because we have not completed hands-on testing of its core detection-evasion claim, and we do not repeat vendor bypass rates. Pick QuillBot if you want a writing tool. Pick ToHuman if you want an endpoint. Judge either on whether the rewritten text keeps your meaning intact, because no tool can honestly promise a specific detector result.

Frequently asked questions

Does ToHuman get past AI detectors?

The vendor markets it that way. ToolChase has not verified any bypass rate and does not publish one, because detector behavior changes continuously.

Which has the better free tier?

They differ in kind. QuillBot's free tier includes an AI detector. ToHuman's free plan includes 2,500 words a month plus API access, which is unusual at that price.

Does QuillBot have a free plan?

Yes, incl. unlimited AI Detector.

Does ToHuman have a free plan?

Yes, 2,500 words a month, no credit card.

What is the biggest drawback of each?

QuillBot: Free Humanizer is capped (~125 words/run). ToHuman: Detection-evasion claims are unverified. Both are recorded on the individual reviews with the evidence behind them.

Related comparisons

Read the full reviews: QuillBot and ToHuman.