Quillbot alternatives
By Joris van Huët · each comparison from the vendors' own pricing and help pages, prices dated on the page
The short answer: 3 tools are compared with Quillbot on this site, and the line under each one is the verdict from its comparison: who should pick which, with the figures that decide it on the comparison itself. Read the one that names your job. What Quillbot costs and who it suits is in its entry, and how to use Quillbot walks through one job with it.
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ChatGPT
When the copy already exists and has been approved, QuillBot is the tool with rails: its free plan rewrites up to 100 words at a time in two modes, and Premium removes the word limit, opens the eight other modes in its guide and lets you freeze brand terms in the modes that support it (free versus Premium, modes).
GPTZero
If your job is checking where freelance or agency drafts came from, GPTZero is the specialist: free for 10,000 words a month, then Premium at $23.99 a month on monthly billing, or $12.99 a month billed annually, for 300,000 words (GPTZero pricing, checked on 26 October 2026).
Grammarly
Choose QuillBot if your job is rewording; choose Grammarly if your job is keeping several people on one set of rules.
QuillBot vs Grammarly (Superhuman): Rewrite or Enforce Rules
A senior operator doing the work: campaigns, channels, CRM and AI agents, live from day one.
With Joris van Huët, interim and fractional CMO in Utrecht. From EUR 5,000 a month, monthly cycles, a 30-day exit.