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Home/Models/AI Text Detectornew

AI Text Detector API — Check Text for AI With One Call

This AI detector scores any text 0–100 for AI authorship and returns a per-engine breakdown. Send text, poll the task, and the AI detector tells you how likely the writing is machine-generated — over the same async /api/v1 contract you already use.

Price
Any text$0.0001/ 1,000 words
Try the AI detectorView API Docs
InputsPOST /api/v1/detect

Under 30,000 words · at least ~200 words gives the most accurate score

Outputidle
try one of these prompts

What you can build

Real workflows powered by this model.

AI detector scoring a batch of user submissions

Screen submissions with the AI detector

Platforms that take user writing — essays, applications, reviews, forum posts — run each submission through the AI detector to flag machine-generated content before it lands. It returns a single 0–100 score plus a per-engine breakdown, so a moderation queue can sort by confidence and route only the borderline cases to a human. The async task contract means a pipeline calls the AI detector, gets a task_id, and moves on.

Score some text
AI detector verifying a freelance writing deliverable

Verify freelance and agency deliverables

When you pay for human writing, the AI detector confirms you got it. Paste the delivered copy and it reports how AI-like it reads, with sub-scores from multiple third-party engines so the verdict is not a single black box. Per-word billing keeps spot-checks cheap: the AI detector costs a fraction of the humanize rate, with a small 50-word floor for short samples.

AI detector re-checking humanized text in a QA loop

QA your own humanized output

Pair the AI detector with the humanizer to close the loop: rewrite a draft, then run the AI detector to confirm the score dropped before you publish. Because it aggregates several engines into one result, you get a more robust read than any single checker. Submit, poll, read the score — same task lifecycle as every reApi model.

Pricing

Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.

CategoryUnitPrice
Per word
Any text1,000 words
$0.000089
1 credits

Why reAPI

A multi-engine AI detector in one call

It aggregates several third-party detection engines into a single 0–100 score and exposes each engine sub-score alongside it. One request to /api/v1/detect, one task_id, one result that is harder to game than any single checker — no need to fan out to multiple vendors and reconcile their answers yourself.

Per-word pricing, a tenth of humanize

1 credit equals $0.001 USD. The AI detector bills per word at one-tenth the humanize rate with a 50-word floor, so screening costs scale with the text you check — no seat fees, no monthly minimum. Failed requests are refunded automatically; you only pay for scores that come back.

Async-first for production stacks

Submit text, get a task_id, poll until done — usually a few seconds. The AI detector fits the same task plumbing as every other reApi model, so a moderation or QA service drops it in without new infrastructure. One JSON shape, one Bearer key, one credit ledger.

AI detector vs a single-engine checker

Why call this AI detector instead of wiring up one detection vendor directly? It comes down to coverage, billing, and how much integration you own.

Capability
AI detector on reApi
Single-engine checker
Engine coverage
Aggregates several engines into one score plus sub-scores — harder to game.
One model; a text tuned to beat that single engine slips through.
Result shape
Headline 0–100 plus per-engine breakdown in one response.
A single number with no second opinion.
Billing
Per word, 50-word floor, refunded on failure — costs scale with text checked.
Often per-document or monthly seats regardless of volume.
Integration
One /api/v1/detect task endpoint, same auth and credit ledger as your other models.
A separate vendor account, SDK, and billing relationship to maintain.
Input length
Up to 30,000 words per call.
Caps and per-call limits vary by vendor.
Pairs with humanize
Same platform as the humanizer for a detect → rewrite → detect QA loop.
Detection only; you source humanizing separately.

Comparison reflects publicly documented behavior at the time of writing. Detection accuracy varies by text and engine and changes over time.

Integrate the AI detector in three steps

  1. 01
    step 01

    Create an API key

    Sign up at reApi and grab a key. Free signup credits cover plenty of words through the AI detector — enough to validate the scores against text you already know the origin of.

    Open
  2. 02
    step 02

    Submit text to check

    POST to /api/v1/detect with model: ai-text-detector and your text. The AI detector returns a task_id immediately so your handler is free to move on.

    Open
  3. 03
    step 03

    Poll for the score

    GET /api/v1/tasks/:id until status is completed. The response carries detection — the 0–100 AI-likelihood plus the per-engine sub-scores.

    Open

Frequently asked questions

Common questions about this model.

The AI detector scores any text 0–100 for how likely it is AI-generated, aggregating several third-party detection engines into one result. On reApi the AI detector ships as model id ai-text-detector on the /api/v1/detect endpoint, returns the verdict as a detection object over an async task, and is billed per word. See the current rate in the pricing table on this page.

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docs/api/ai-text-detector

API reference

Drop-in code and the full parameter table.

View full reference
curl -X POST https://reapi.ai/api/v1/detect \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "ai-text-detector",
    "text": "Paste the text you want to check for AI authorship here. At least 200 words gives the most accurate score."
  }'
start building

Ready to ship?

Try it in the playground or grab an API key to integrate now.

Try the AI detectorGet API key
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