Coda One
AI writing tools to detect, humanize, rewrite and check grammar
Browser-first AI writing platform with unlimited free detection, humanization to natural-sounding text, rewriting, and grammar checking. Detect AI patterns
About this launch
Coda One is an AI writing quality platform designed for writers, students, and non-native English speakers. It provides four integrated tools in one workflow: an AI Detector that checks text for machine-generated patterns with published accuracy rates, an AI Humanizer that transforms AI-generated text into natural-sounding content across 9 writing modes, an AI Rewriter that offers 8 different tones, and a Grammar Checker. The detection engine runs on Coda One's own statistical model rather than language models, enabling unlimited free checking without daily limits. Users can start in the browser immediately, detect flagged content, and send results directly to the humanizer for revision without switching tabs. Paid plans unlock higher monthly word allowances and advanced features, while the core detector remains free forever.
What it does
- Unlimited free AI detector with no daily limit or signup required
- AI Humanizer with 9 writing modes including Standard, Academic, Blog, Formal, and Simple
- Statistical detection engine that processes text on own servers with no third-party sharing
- AI Rewriter with 8 different tones
- Grammar Checker tool included in all plans
- Chrome Extension for in-browser humanizing and detection
- Brand Voice feature for maintaining consistent tone across 1-3 voices depending on plan
- Re-humanize function to generate genuinely different drafts at higher variation
Pricing
Pricing model: Freemium
Free: unlimited AI Detector, 3 daily uses on writing tools, 5 of 9 humanizer modes, 5 of 8 rewriter tones. Starter $9.99/mo (or $7.99/mo annually): 30K words/month, every humanizer and rewriter mode, 500 words per process. Pro $19.99/mo (or $15.99/mo annually): 100K words/month, no per-request word
Shopper questions
Is there really a free plan?
Yes. The AI Detector is free with no daily limit, and every writing tool gives you 3 free uses per day. You can start in your browser before creating an account, and there is no card required to begin.
What happens if I exceed my word limit?
Requests stop until your allowance refills. You get a message showing how many words are left rather than a partial result. The allowance refills at the start of each calendar month, not on your billing date, so a plan bought mid-month gets its first refill on the 1st.
Do you offer refunds?
Yes, within 7 calendar days of purchase if you have used less than 20% of that month's word allowance and it is your first refund. Past 20% usage the refund is prorated against what is left.
What does re-humanize mean?
Re-humanize runs your humanized text through the engine again at a higher variation setting and skips the result cache, so you get a genuinely different draft instead of the same one back. It is available on every plan, including Free.
How much do I save on an annual plan?
Annual billing is about 20% cheaper than paying monthly: Starter is $7.99/mo billed annually versus $9.99/mo billed monthly, Pro is $15.99/mo annually versus $19.99/mo monthly, and Business is $31.99/mo annually versus $39.99/mo monthly.
Coda One has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
