Koala AI vs Undetectable AI

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Koala AI

See full pricing history

USD · US · source: koala.sh

Plan	Pricing	Charged by	Offer type
Essentials — monthly	USD 9 monthly · USD 7.2 / month with annual commitment $9 /month	Flat · per month	Standalone · Fixed

Undetectable AI

See full pricing history

USD · US · source: undetectable.ai

Plan	Pricing	Charged by	Offer type
10K words/month — default	USD 9.99 monthly · USD 5 / month with annual commitment $5.00 /mo Charged annually $60.00	Usage · 10K words/month	Standalone · Fixed
20K words/month — default	USD 19 monthly · USD 9.5 / month with annual commitment $9.50 /mo Charged annually $114.00	Usage · 20K words/month	Standalone · Fixed
35K words/month — default	USD 31 monthly · USD 15.75 / month with annual commitment $15.75 /mo Charged annually $189.00	Usage · 35K words/month	Standalone · Fixed
50K words/month — default	USD 42.5 monthly · USD 21.25 / month with annual commitment $21.25 /mo	Usage · 50K words/month	Standalone · Fixed

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Koala AI

Essentials — monthly

Highlights KoalaWriter word count: 15,000 words per month

Included
Highlights KoalaChat messages: 250 messages per month

Included
Highlights GPT-5.2 and Claude 4.5 Sonnet: Included

Included
Highlights KoalaImages: Limited file and image uploads

Included
Highlights Real-time factual data: Included

Included
Highlights AI-Powered SEO Optimization: Included

Included
Highlights AI images and YouTube video embedding: Included

Included
Highlights Live Amazon data for affiliate articles: Included

Included
Highlights Bulk writing mode: Included

Included
Highlights WordPress and webhook integrations: Included

Included
Highlights Google Sheets Integration: Included

Included
Highlights API Access: Included

Included

Undetectable AI

10K words/month — default

Highlights Passes AI detectors: Included
Highlights High quality, legible content: Included
Highlights Watermark and future proof: Included
Highlights Writing level matching: Included
Highlights API compatible: Included
Highlights Unlimited Human Auto Typer: Included
Highlights Unlimited AI Detecting: Included

20K words/month — default

Highlights Passes AI detectors: Included
Highlights High quality, legible content: Included
Highlights Watermark and future proof: Included
Highlights Writing level matching: Included
Highlights API compatible: Included
Highlights Unlimited Human Auto Typer: Included
Highlights Unlimited AI Detecting: Included

35K words/month — default

Highlights Passes AI detectors: Included
Highlights High quality, legible content: Included
Highlights Watermark and future proof: Included
Highlights Writing level matching: Included
Highlights API compatible: Included
Highlights Unlimited Human Auto Typer: Included
Highlights Unlimited AI Detecting: Included

50K words/month — default

Highlights Passes AI detectors: Included
Highlights High quality, legible content: Included
Highlights Watermark and future proof: Included
Highlights Writing level matching: Included
Highlights API compatible: Included
Highlights Unlimited Human Auto Typer: Included
Highlights Unlimited AI Detecting: Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

Koala AI

August 27, 2026 Source
- Essentials — monthly: USD 9 monthly · USD 7.2 / month with annual commitment

Undetectable AI

August 27, 2026 Source
- 10K words/month — default: USD 9.99 monthly · USD 5 / month with annual commitment
- 20K words/month — default: USD 19 monthly · USD 9.5 / month with annual commitment
- 35K words/month — default: USD 31 monthly · USD 15.75 / month with annual commitment
- 50K words/month — default: USD 42.5 monthly · USD 21.25 / month with annual commitment