Payment wasn't completed
Nothing was charged. Pick a plan to try again.
Beat AI detectors and write freely. Use Humanio for essays, reports, and creative work.
Choose a plan based on the amount of text you work with and the model you need:
Standard is designed to work well against most popular AI detectors. If your workflow includes Pangram, choose Pro or Business for access to Ultra model. Ultra uses more credits per word, so factor that into your choice.
Credits are deducted based on the number of words in the text you submit and the tool or model you use.
| Tool or model | Credit usage | Example: 325 words |
|---|---|---|
| Standard humanization | 1 credit per word | 325 credits |
| AI Detector | 1 credit per word | 325 credits |
| Ultra humanization | 3 credits per word, with a minimum charge of 300 credits per request | 975 credits |
Ultra has a minimum charge of 300 credits per request. This means that texts of up to 100 words cost 300 credits; longer texts cost 3 credits per word.
Humanization is charged based on your input text. Checking the same text with the AI Detector is a separate action and uses additional credits.
We do not set a separate per-request word limit, but you need enough credits to process your text with the selected model.
For the best humanization results, we recommend submitting up to 1,500 words at a time. You can split longer documents into sections and review each result before continuing.
On weekly and monthly plans, your credit allowance refreshes at the start of each new subscription period. Unused credits from the previous period expire and do not roll over.
On annual plans, your yearly allowance is distributed in 12 equal monthly allocations. Your credits refresh each month, and unused credits expire at the end of that monthly allocation period.
You can wait until your next credit refresh or renew your subscription early to start a new billing period and receive a fresh credit allowance.
When you renew early, you are charged immediately for a full new billing period. The new period starts at that point, and your fresh credit allowance becomes available once payment is confirmed.
For an annual subscription, early renewal means paying for a new full year; credits are still allocated monthly.
Choose the plan and billing period that suit your needs. Your subscription then renews automatically every week, month, or year, depending on your selection, unless you cancel before renewal.
Annual subscriptions are billed once a year, while their credits are allocated monthly. The amount due and billing frequency are shown at checkout.
Payments and subscription billing are handled by Polar, our payment partner. Polar sends payment receipts and applicable billing notifications.
You can upgrade immediately or schedule a change for your next billing period.
To upgrade at your next renewal:
To upgrade immediately:
For an immediate upgrade, both the additional payment and the extra credits are prorated for the time remaining in your current period. You do not receive the full difference between the plans’ allowances.
For example, suppose you upgrade from Pro with 50,000 credits to Business with 90,000 credits, with 10 days remaining in a 30-day monthly period:
(90,000 − 50,000) × 10 ÷ 30 ≈ 13,333 additional credits
The exact amount depends on the time remaining in your subscription period.
Go to My Account → Manage Subscription to open the Polar customer portal, then select the lower plan you want.
The downgrade takes effect at the start of your next billing period. Until then, you keep access to the features and remaining allowance of your current plan.
Everyone can try the AI Detector once for free. A free humanization trial of up to 300 words is available to eligible users, subject to daily availability limits. Humanization trial eligibility is determined automatically, and we do not disclose the details of those checks.
The trial itself is free. The price and billing schedule for a paid subscription are shown at checkout.
If the humanization trial is not available to you, or you have questions before subscribing, contact our support team.
Go to My Account → Manage Subscription to open the Polar customer portal and cancel your subscription.
After cancellation, your subscription remains active until the end of your paid period. You can continue using its features and remaining credits during that time, and it will not renew or charge you for another period.
Once the paid period ends, access to subscription-only features ends as well.
Please read our Refund Policy for the full terms and eligibility requirements. If you have a question about a payment, contact our support team.
Payments are processed through Polar. Depending on your location, currency, and device, subscription payment options may include:
The methods available to you appear at checkout. See Polar’s payment methods documentation for the current list.
Still have questions?