Humans vs AI
A/B testing OpenAI's GPT-3
In this friendly competition, we tested AI-generated copy against human-written copy for participating websites. Check out the results of the ongoing competition below.
👩 Human Copy Win
🤖 AI Copy Wins
👩 Human & 🤖 AI Ties
18
Confirmed participants
1
Awaiting Result
10
Inconclusive
Website
Test Type
Industry
Uplift %
Statistical Significance
Winner
Culligan Water
WebsiteHeadline
Consumer Services
24.3%
95%
🤖AI Copy
Test Duration:
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The test was run by the brand’s agency partner: Optimized-Marketing.com
Clark Germany GmbH
WebsiteHeadline
Finance
15.77%
100%
🤖AI Copy
Test Duration:
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

AI Variation 2

AI Variation 3

All three AI copies won. Variation 2 resulted in the maximum uplift (15.77%) whereas Variation 1 and Variation 3 resulted in an uplift of 9.13% & 7.13% respectively with a statistical significance of >90%.
Schneiders
WebsiteOffer CTA
eCommerce
7.06%
91%
🤖AI Copy
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

Booking.com
WebsiteCTA
Travel
1.7%
95%
👩Human Copy
👩 Human Copy
Human Copy 1

Human Copy 2

🤖 AI Copy
AI Variation 1

Human copy 1 won this test. We have shown blurred screenshots to mask the identity of the hotel property.
Springworks
WebsiteHeadline
SaaS
-
-
⚖️Human-AI Tie
Test Duration:
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The uplift between human copy and AI copy was less than 5% (and statistically insignificant too). Hence for practical purposes, we conclude the test to be a tie.
Zinger Chairs
WebsiteHeadline
eCommerce
-
-
⚖️Human-AI Tie
Test Duration:
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The uplift between human copy and AI copy was less than 5% (and statistically insignificant too). Hence for practical purposes, we conclude the test to be a tie.
Prospects.ac.uk
WebsiteProduct Description
Education
-
-
⚖️Human-AI Tie
Test Duration:
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

AI Variation 2

The uplift between human copy and AI copy was less than 5% (and statistically insignificant too). Hence for practical purposes, we conclude the test to be a tie.
Booking.com
WebsitePage copy
Travel
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The test has been deemed inconclusive since the result was not statistically significant i.e. the statistical significance threshold of 90%.
Booking.com
WebsiteHeaders
Travel
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The test has been deemed inconclusive since the result was not statistically significant i.e. the statistical significance threshold of 90%.
Mogo
WebsiteHeadline
Finance
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The test has been deemed inconclusive since it was paused by the participating website before achieving the statistical significance threshold of 90%.
RV Trader
WebsiteHeadline
Travel & Hospitality
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The test has been deemed inconclusive due to an error in the configuration of the test which led to erroneous results.
Eurosender
WebsiteHeadline
Logistics
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

AI Variation 2

AI Variation 3

The test has been deemed inconclusive since it was paused by the participating website before achieving the statistical significance threshold of 90%.
Soapbox
WebsiteHeadline
SaaS
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The test has been deemed inconclusive since it was paused by the participating website before achieving the statistical significance threshold of 90%.
Integrify
WebsiteHeadline
SaaS
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

AI Variation 2

The participating website used the Multi-Armed Bandit (MAB) approach instead of A/B testing and hence we have considered it as inconclusive. However, the winning variation in the MAB test was generated by an AI.
Timeesci.com
WebsitePage copy
eCommerce
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The test has been deemed inconclusive since the website had very low traffic to conclude the test on.
Adworld
WebsiteCTA
Event
-
-
❕Inconclusive
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

The test has been deemed inconclusive since it was paused by the participating website before achieving the statistical significance threshold of 90%.
CarGurus
WebsiteProduct Description
Automotive
-
-
❕Inconclusive
Test Duration:
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

A bug was reported in the test where the copy was not appearing on pages as expected, which means that the AI-generated text wasn’t displayed to users who visited the test page. Hence, we have termed this test as inconclusive.
Website 1
Headline
Marketplace
-
-
⏱Awaiting Results
👩 Human Copy
Human Copy 1

🤖 AI Copy
AI Variation 1

AI Variation 2

We have not shown the website name and clear screenshots for ongoing tests to avoid polluting the test data.
We will showcase them once we have statistically significant results.
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