What AI Headline Testing reveals about audience engagement
Artificial Intelligence (AI) has quickly become a regular part of newsroom conversations, with generative AI tools transforming how teams create, test, and optimize content to maximize reader engagement. At Chartbeat, we’re seeing a rise in AI-assisted headlines. With their growing use, it’s important to understand how AI-generated headlines affect content performance and audience engagement.
To understand the effect AI is having in newsrooms, we analyzed AI-assisted headline tests and non-AI-assisted headline tests from January through June 2025 to see the effects on engagement, click-through rate (CTR), and other metrics.
What we found in our analysis highlights how quickly newsroom behavior is changing — and why pairing data-driven insights with AI experimentation can help shape and boost audience engagement.
TL;DR: Do AI-generated headlines perform better than human-written ones?
Yes, on average. In Chartbeat’s analysis of headline tests from January through June 2025, winning AI-assisted headlines delivered a 55% average CTR lift (vs. 50% for non-AI winners) and a 68% lift in engaged clicks (vs. 54%). AI headlines also won slightly more often: 27% of tests vs. 26%.
What is Headline Testing?
Before we dive into the data, let’s review the foundation of headline testing. Headlines are often the deciding factor in whether a reader clicks through to a story, and testing headlines against each other can reveal the small variances that impact engagement.
Definition: What is headline testing?
Headline testing is a form of A/B or multivariate testing in which a publisher shows two or more headline variants for the same story to live audiences, then uses click-through and engagement data to pick a winner. It replaces editorial intuition alone with real-time evidence of what readers click and keep reading.
Chartbeat Headline Testing, a product designed to compare different headline variations in real-time, helps to identify which headline resonates most with audiences. In 2024, the AI-Generated Headline Suggestions feature was introduced within the Chartbeat Headline Testing suite, and uses generative AI technology to suggest headlines that are optimized to drive higher click-through rates and stronger audience engagement.
As the backdrop for our analysis, we’re comparing the impact of AI headlines to non-AI headlines to see if we can find material differences in the improvements of each type of headline testing.
Interested in learning how to run a successful headline testing strategy? Read our blog post on optimizing headlines and engaging audiences with data-informed experimentation.
How do AI headlines impact CTR?
Though non-AI headline experiments still outnumber AI headlines ten to one, we’ve seen the number of AI-assisted headlines more than double. We suspect this increase could be due to greater interest in generative AI and news organizations wanting to leverage this technology in their work.
An important note: AI-generated headlines are flagged by the user rather than being flagged automatically, so there may be limitations to the accuracy of these numbers.
As adoption is growing quickly, publishers are learning that even when AI-generated headlines don’t win a test outright, there’s evidence that their presence has a beneficial impact.
AI headlines vs. original headlines: which comes out on top?
In our analysis of AI experiments, we found that AI-generated headlines won 27% of the time, while original (non-AI) headlines won 26% of the time. On its own, the difference may not seem dramatic, but it serves as a meaningful signal that the presence of AI is moving content performance in the right direction.
However, this slight win for AI-generated headlines doesn’t paint the full picture. Let’s dig deeper into the data to see whether other engagement metrics support the idea that AI-assisted headlines are providing a measurable lift.
Can AI Headlines improve CTR lift?
When we focus specifically on the winning headlines, the advantage of AI becomes more pronounced:
- AI-assisted headlines generate a 55% CTR lift
- Non-AI headlines (from non-AI-assisted experiments) generate a 50% CTR lift
The takeaway: These results suggest that AI has the edge, and winning AI-generated headlines consistently deliver stronger CTR.
All Headline Tests
When examining all headline tests — including those without AI variants — we see:
- AI-assisted experiments generate a 32% CTR lift
- Non-AI headlines generate a 6% CTR lift
The takeaway: The presence of AI testing itself appears to be beneficial for experiments, potentially leading teams to explore new variations or refine their instincts even if the specific AI variants don’t win.
Want to learn more about headline testing? Read our case study on how Deseret News boosted CTR by 45% with Chartbeat.
Do AI-assisted headlines improve reader engagement?
Building on these CTR findings, our analysis of headline experiments also reveals a significant uplift in engagement when using AI assistance.
What is the average engagement lift for AI-assisted headlines?
- AI-Assisted Headlines: Experiments where an AI-assisted headline emerged as the winner saw an average engagement lift of 8%
- Non-AI Headlines: In contrast, experiments without AI assistance (where a non-AI headline won) showed an average engagement lift of 3%
How beneficial is AI to the headline testing process?
Across all completed experiments — including non-winning headline variants — we see that AI delivers benefits across the entire testing process.
- AI-Assisted Headline Experiments: Across all completed AI-assisted experiments, the average engagement lift was 4%, even when the original headline variant ultimately won
- Non-AI Headline Experiments: For experiments without AI headlines, the average engagement lift was 1%
Can AI-assisted headlines drive engaged clicks?
When we look specifically at engaged clicks — a deeper measure of how headlines drive meaningful audience interaction — AI-assisted headlines once again come out on top.
- Average engagement lift for winning headlines only:
- AI-assisted experiments (where an AI-assisted headline won): 68%
- Non-AI headlines (from non-AI-assisted experiments): 54%
- Average engagement lift for all completed experiments:
- AI-assisted experiments: 38%
- Non-AI headlines: 7%
Definition: What are engaged clicks?
Engaged clicks count visitors who click through a headline and then actively read the page for a sustained period, rather than bouncing right away. They separate quality engagement from empty clickbait, which makes them a stronger signal of headline performance than CTR alone.
How AI-assisted and non-AI headlines compare
All results from Chartbeat Headline Testing experiments, January–June 2025.
| Metric | Tests included | AI-assisted | Non-AI | Difference |
|---|---|---|---|---|
| Test win rate | AI experiments | 27% | 26% | +1 pt |
| Average CTR lift | Winning headlines only | 55% | 50% | +5 pts |
| Average CTR lift | All headline tests | 32% | 6% | +26 pts |
| Average engagement lift | Winning headlines only | 8% | 3% | +5 pts |
| Average engagement lift | All completed experiments | 4% | 1% | +3 pts |
| Average engaged-clicks lift | Winning headlines only | 68% | 54% | +14 pts |
| Average engaged-clicks lift | All completed experiments | 38% | 7% | +31 pts |
What are our biggest takeaways on AI headlines?
What does all of this data mean for publishers exploring AI in their workflows? At a high level, our findings suggest that the use of AI in headline generation is more than just a passing experiment — it delivers measurable gains in audience engagement. Here are the key takeaways from what we’ve learned about AI headline testing:
- Stronger audience engagement: Early data shows that AI-assisted headlines contribute to a more engaged audience, with a 55% CTR lift compared to a 50% CTR lift with non-AI headlines. Moreover, experiments where an AI-assisted headline emerged as the winner saw an average engagement lift of 8%, compared to 3% in experiments without AI.
- Value beyond the winner: Even when AI-generated headlines don’t win, there’s evidence that their presence has a beneficial impact. When examining all headline tests, AI-assisted experiments that tested AI headlines — whether or not they won — generated a 32% CTR lift while non-AI headlines generated a 6% CTR lift.
- Growing adoption: Chartbeat customers are experimenting. We’ve seen the number of AI-assisted headlines double, indicating a larger shift in the industry towards this technology.
See the impact of AI on your content’s performance — request a demo of Chartbeat Headline Testing today.
