Resea AI Humanizer

Resea AI's page describes an AI Humanizer built for AI-assisted writing. Users paste an AI draft (the page names ChatGPT, Claude and Gemini), choose a writing style such as academic, blog, formal, casual, concise or expanded, and receive a rewritten version. The page says the tool shows Turnitin, GPTZero, Originality.ai, ZeroGPT and its own detector scores side by side, lets users lock keywords and key terms so they survive rewrites, detects citation styles such as APA 7th to keep references intact, and supports output in English, Chinese, Portuguese, Spanish, French and German. The page also lists a free plan (10 rewrites a day, up to 1,000 words per input, no credit card) and paid Starter and Plus plans with pricing shown on the page, plus related tools for Deep Research, an AI Writing Editor and a Cite Checker. The page includes a caveat that results vary by text and users should review final versions and follow their school or workplace rules.

Key features

• Rewrites AI-generated drafts into more natural text
• Shows AI detection scores from Turnitin, GPTZero, Originality.ai, ZeroGPT and Resea Detector side by side
• Multiple writing styles: academic, blog, formal, casual, concise, expanded and custom 'My Voice'
• Locks keywords and key terms so they remain unchanged in rewrites
• Automatically detects citation style (e.g., APA 7th) and keeps references and formatting intact
• Multilingual output in English, Chinese, Portuguese, Spanish, French and German
• Free plan with 10 rewrites per day and up to 1,000 words per input
• Paid plans offering higher daily rewrite limits, larger word limits, pro model rewriting and more styles
• Related tools on the page: Deep Research, AI Writing Editor and Cite Checker

Best suited for

• Students and academic writers revising AI-assisted essays and papers
• Bloggers and SEO content teams who need consistent voice and locked keywords
• Professionals rewriting emails, reports and marketing copy
• Legal or technical writers who need defined terms and citations preserved
• Non-native English speakers polishing AI-assisted writing

Pricing

Free plan at $0 (10 rewrites per day, up to 1,000 words per rewrite). Paid plans shown on the page: Starter at $9.5/month ($19 list, annual subscription) and Plus at $24.5/month ($49 list, annual subscription), with a 50% yearly discount noted.