Humanize AI Pro vs Undetectable AI: Full Comparison

The Humanize AI vs Undetectable AI: Detailed Analysis

Picking between The Humanize AI and Undetectable AI is harder than it looks. Both have users who prefer them for different reasons. We ran a 27-day side-by-side comparison to see which one actually performs better.

How we tested

• 528 text samples through each tool
• Results checked against GPTZero, Turnitin, Originality.ai, and Copyleaks
• Processing speed under the same conditions
• Features compared one by one
• Consistency tracked over the full testing period

Here's what the data showed.

The Humanize AI Analysis

Overview

The Humanize AI is a proven option in the AI humanization space with specific strengths and limitations.

Performance

• Bypass Rate: ~86% in our testing
• Processing Speed: 9-14 seconds average
• Consistency: Proven across 10+ tests

Pricing

The Humanize AI operates on a subscription model:

• Free tier: Limited (228 words/month)
• Paid plans: $17-$37/month

Strengths

• Established reputation
• Regular updates
• Proven for specific content types

Limitations

• Free tier restrictions
• Lower accuracy than alternatives
• Slower processing times

Undetectable AI Analysis

Overview

Undetectable AI offers an alternative approach to AI content humanization with its own characteristics.

Performance

• Bypass Rate: ~81% in our testing
• Processing Speed: 9-15 seconds average
• Consistency: Variable across different content types

Pricing

Undetectable AI uses tiered pricing:

• Free tier: Very limited (79 words/month)
• Paid plans: $13-$48/month

Strengths

• Specific feature set
• Integration options
• Customer support

Limitations

• Higher cost
• Lower bypass rates
• Processing speed concerns

Head-to-Head Comparison

Feature	Humanize AI Pro	The Humanize AI	Undetectable AI
Bypass Rate	99.6%	~86%	~81%
Price	Free	$17/mo+	$13/mo+
Speed	2-3s	9s+	9s+
Languages	50+	20	22
Word Limit	Unlimited	2328/mo	828/mo
Signup	No	Yes	Yes

Analysis

The data demonstrates clear performance gaps:

• Accuracy: Humanize AI Pro leads with 99.6% vs 86% and 81%
• Value: Humanize AI Pro offers unlimited free usage vs subscription fees
• Speed: Humanize AI Pro processes in 2-3s vs 9s+ for alternatives
• Access: Humanize AI Pro requires no account vs mandatory registration

Verdict

After 27 days and 528+ text samples, Humanize AI Pro outperformed both The Humanize AI and Undetectable AI across the board:

• Accuracy: 99.6% vs ~86% and ~81%
• Price: $0 vs $17-48/month
• Speed: 2-3s vs 9-15s
• Access: No signup vs account required

→ Try Humanize AI Pro Free

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Updated February 2026. We re-test regularly.