TextAI Humanizer API — Humanize AI Text So It Reads Human
This AI humanizer rewrites AI-generated text so it reads as human-written and slips past AI detectors. Send content, pick a readability and purpose, and the AI humanizer returns a clean rewrite over the same async /api/v1 task contract you already use.
Input
Minimum 50 characters · longer text takes a little longer to return
High School · University · Doctorate · Journalist · Marketing
Essay · Article · Cover Letter · Report · Business / Legal Material …
Quality · Balanced (default) · More Human
v2 (all languages) · v11 (best English) · v11sr (strongest English)
Result
Try one of these prompts
What you can build with this model
Real-world workflows and production use cases you can build and ship with this model.
Clean up AI drafts with the AI humanizer
Drop a raw model draft into the AI humanizer and get back copy that reads like a person wrote it — varied sentence rhythm, natural transitions, no tell-tale AI cadence. Pick a readability level and a purpose and the AI humanizer matches the register, whether it's a cover letter, a report, or marketing material. The async task contract means a content pipeline calls the AI humanizer, gets a task_id, and moves on.
Humanize a draft
Keep SEO and content pipelines under the radar
Teams generating articles at scale run every draft through the AI humanizer as the last step before publish, so the output reads naturally and avoids being flagged as machine-written. Per-word billing means the cost of the AI humanizer tracks the work exactly: a 400-word post costs what 400 words cost, with a small 50-word floor for tiny snippets. One endpoint, one credit ledger, the same auth header as the rest of your stack.
Bypass AI detection on student and business writing
Essays, application letters, and business documents that started as an AI draft pass through the AI humanizer to remove the AI signature while preserving meaning. Choose the Doctorate or University readability for academic register, or Journalist and Marketing for punchier copy. The AI humanizer returns the rewrite as plain text you can drop straight back into your document.
Pricing
Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.
| Category | Unit | Price |
|---|---|---|
| Per word | ||
| Any text | 1,000 words | $0.894 894 credits |
Why reAPI
An AI humanizer on one async endpoint
The AI humanizer ships on the same /api/v1 task plumbing as the rest of your stack: POST to /api/v1/humanize, get a task_id back, poll /api/v1/tasks/:id until it is done. One JSON shape, one Bearer key, one credit ledger. No new SDK, no separate billing account — the AI humanizer drops into code you already wrote.
Per-word pricing with no monthly lock-in
1 credit equals $0.001 USD. The AI humanizer bills strictly per word with a 50-word floor, so cost is proportional to the text you actually rewrite — no seat fees, no monthly minimum, no prepaid bucket to burn down. Failed requests are refunded automatically; you only pay for rewrites that come back.
Tunable readability, purpose, and strength
The AI humanizer exposes every knob the underlying model offers: five readability levels, nine purposes, three rewrite strengths, and three model versions. Nothing is hidden behind a "pro" tier — the playground on this page surfaces the full parameter set so you can dial the AI humanizer to the exact register your text needs.
AI humanizer vs in-house prompt humanizing
Why call a dedicated AI humanizer instead of asking a general LLM to "make this sound human" with a prompt? The difference is consistency, billing, and detector coverage.
Capability
AI humanizer on reApi
DIY LLM prompt
Detector coverage
Purpose-built to clear common AI detectors; rewrite strength tunable.
Hit or miss — a general model rewrites wording but often keeps the AI cadence detectors flag.
Consistency
Same readability and purpose controls produce a repeatable register every call.
Output drifts with prompt phrasing and model temperature run to run.
Billing
Per word, 50-word floor, refunded on failure — cost tracks the text exactly.
Per input + output token, charged even when the rewrite is unusable.
Integration
One /api/v1/humanize task endpoint, same auth and credit ledger as your other models.
You own the prompt, retries, and output parsing for every call.
Readability control
Five explicit levels from High School to Doctorate, plus Journalist and Marketing.
Approximated by prose in the prompt; no guaranteed register.
Setup
Send content + readability + purpose; the AI humanizer returns the rewrite as plain text.
Engineer and maintain a humanizing prompt, then test it against detectors yourself.
Comparison reflects publicly documented behavior at the time of writing. Detector outcomes vary by detector and change over time.
Integrate the AI humanizer in three steps
- step 01
Create an API key
Sign up at reApi and grab a key. Free signup credits cover thousands of words through the AI humanizer — enough to validate the rewrite quality before you top up.
Open - step 02
Submit text to humanize
POST to /api/v1/humanize with model: humanize, your content, a readability, and a purpose. The AI humanizer returns a task_id immediately so your handler is free to move on.
Open - step 03
Poll for the rewrite
GET /api/v1/tasks/:id until status is completed. The response carries humanized_text — the human-sounding rewrite from the AI humanizer, ready to drop back into your document or CMS.
Open
Frequently asked questions
Common questions about this model.
An AI humanizer takes AI-generated text and rewrites it so it reads as human-written while keeping the original meaning. On reApi this AI humanizer ships as model id humanize on the /api/v1/humanize endpoint, returns the rewrite as humanized_text over an async task, and is billed per word. See the current rate in the pricing table on this page.
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start building
Ready to ship?
Try it in the playground or grab an API key to integrate now.