Paste a draft and Detect AI for an AI percentage, signals, and exportable results — then Humanize if it still reads like a model.
Detector workflow: paste → Detect AI → export JSON/CSV → optional Strong humanize.
Drop files here or Upload file — txt, md, docx, doc, odt, pdf, pptx, xlsx, csv, rtf, html, epub (multi-file OK).
Optional distraction while long documents process. Humanize keeps running in the background.
Switch to annual and save ~2 months.
Try Carbon on short drafts
or $90/yr billed yearly
Light weekly posting
or $190/yr billed yearly
Teams & frequent writers
or $290/yr billed yearly
Agencies & heavy use
or $390/yr billed yearly
No word cap — full access
Five tiers — Free through Unlimited (~$39/mo). Annual billing is cheaper (pay for 10 months, get 12). Sign in before paying so your plan stays on your account. Payments via Stripe + PayPal.
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Turn stiff model drafts into readable copy with your channel’s cadence — faster drafts, less rewrite fatigue.
Ship LinkedIn, email, and ads that don’t read like spammy AI templates — keep trust when you publish.
Polish abstracts and notes so they sound authored, not generated — while keeping claims and citations intact.
Carbon’s detector blends style heuristics with an LLM judge so you can catch polished academic AI that “sounds smart” but still reads like a model. Scores are Carbon’s own style check — not a third-party Turnitin/GPTZero certificate.
Yes. The Free plan includes monthly word allowance for Check voice and Humanize. After a humanize you also get one Free Retry on the same draft that does not burn extra words.
Carbon blends local style heuristics (sentence burstiness, hedge stacks, abstract-noun density, and more) with a structured LLM judge, then shows an AI percentage you can export. It is a self-edit score — not a certified third-party detector badge.
Yes — Check plagiarism is a built-in originality risk scan using Carbon’s AI (plus local heuristics). It estimates risk and flags quote-like / likely-copied passages. It is not Turnitin or a web crawl. Clear plagiarism rewrites unattributed stretches in your own words while keeping meaning and citations.
Light is a gentle polish. Standard is a full humanize for your selected format. Strong pushes hardest for human rhythm — uneven sentences, fewer buzzwords, more concrete voice — without inventing facts. If the after-score is still high, Carbon runs an automatic repair pass.
Carbon is for improving your own drafts and making AI-assisted writing clearer and more human. Keep authorship honest for your context (school, work, client rules).
Yes — use the Automate page and API key to call humanize/check from n8n or your own tools.