Running experimentsUpdated Sep 16, 2026

How an experiment gets designed and run

You come with a question about your market, or a hunch you want to prove. Here is how a Heatseeker experiment puts it to your audience and brings back an answer you can act on, what you decide along the way, and how to read the result.

You have a question about your market. Which benefit makes buyers act? Which of three product ideas is worth building? Does your positioning still hold in a new country? A Heatseeker experiment puts that question to your audience and brings back an answer you can act on. Here is how you get from question to answer, what you decide along the way, and how to read what comes back.

Key takeaways
  • →Start with your question, or a hunch you want to prove. Heatseeker turns it into a test of your products, your brand and your audience segments.
  • →You decide five things: what you want to know and what rides on it, which segment answers, whether real customers or their AI counterparts answer, sign-off on the ads, and the budget for a live run.
  • →Heatseeker does the rest: picks the method, designs the ads to your brand guidelines, writes them in your brand's voice, sizes the budget and calls the winner.
  • →Your answer comes back with a conviction rating that tells you whether it is safe to act on.

What you bring

An experiment is built from things you already have in your workspace.

  • Your product. The thing your question is about. Its name, description and selling proposition shape every question Heatseeker asks and every ad it writes. If you have several products, you say which one this is about.
  • Your brand. The ads run under your brand's page and in its tone of voice. If you also have a stealth brand, you can ask the market incognito, so competitors never see who is asking.
  • Your audience segments. The people whose answer you want. Your saved segments are offered to you once the question is set. If none fits, you create one on the spot.
  • Your ad accounts, for live runs. Live experiments show real ads to real people on Meta, LinkedIn or TikTok, so those accounts need to be connected first. See Connect Meta to Heatseeker, Connect LinkedIn to Heatseeker and Connect TikTok to Heatseeker. Simulations need no ad account.

Step 1: Turn your question into a goal

Open a new experiment and say what you want to know, in your own words. "We think the safety angle beats the price angle with parents." "We have six benefits and no idea which one our customers actually care about." "We are entering a new market and are not sure our positioning travels."

Heatseeker AI asks one question at a time, and only to pin down three things:

  1. What you want to compare. The one thing that will differ between the ads: headlines, benefits, pain points, images, products.
  2. Why now. The problem, opportunity or disagreement that makes this the question worth answering.
  3. What you will do with the answer. In your words: brief the next campaign, pick the launch message, decide which product to build.

If you have a hunch, say it. It is recorded as your hypothesis, and the result proves or disproves it. Heatseeker never invents one for you. If you already know exactly what you want, say "skip the questions" and it states its assumptions and asks you to confirm them in one turn.

You do not have to choose an experiment type. The experiment library shows all thirteen, but Heatseeker recommends two or three that fit your question and explains what each one compares. Your job is to recognize your question in one of them.

Where Heatseeker pushes back
Heatseeker behaves like an experiment strategist, not a form. If your question is really two questions ("do our images or our headlines need work?"), it says so and runs the message test first, because the winning message gives the image test a much cleaner brief. If the decision is already made and no result could change it, it says so once and offers the sharper question. And it tells you what each method compares before you pick, so you never end up comparing three things that need to look different with one shared image.

Once your goal is confirmed, two more choices close the step.

Choose who answers

Your saved audience segments appear as cards, the best fit for your question first. Pick one, or create a new segment. You can also choose more than one. Each segment then gets its own answer, which is how you tell a strong message apart from a well-matched audience. Experiments with more than one segment run live.

Choose how they answer

Your segment can answer in two ways. Live, where real people in that segment see real ads and their clicks are the answer. Or as a simulation, where the segment's AI customers react to the same ads and answer in minutes, at a fraction of the cost.

Heatseeker recommends one for you and says why. It looks at what rides on your answer: if the result picks the message for a major campaign, it recommends live, because a wrong answer there is expensive. If the result only narrows twelve ideas to three, a simulation is enough. It also looks at how well your AI customers are trained. They learn from every live experiment you run for this product. If they have not been trained yet, Heatseeker recommends live and treats any simulation as a directional read.

You can override either way by saying so. TikTok experiments and experiments across more than one segment always run live.

Definition
Simulation
About a thousand AI customers, generated to match your segment's targeting and trained on the live results your workspace has already produced for this product, react to each ad. No ad spend, no real audience exposure, no waiting. Most teams simulate to narrow the field, then run live to confirm the winner.

Thirteen ways to ask

Each experiment type answers a different kind of question. Behind them are four shapes, and the shape decides what your ads hold constant and what they compare. That is what makes the answer clean.

Which message? One image, the words differ

Every ad shares the same image, and only the words change. Choose this shape when the question is about what to say: the Value Proposition Test, Messaging Test, Benefit Test, Feature Test, Pain-Point Test, Buying Driver Test, Jobs-to-be-Done Test, Concept Test and Competitor Benchmark.

Which visual? Your images or videos, one copy line

Each ad is a different image or video of yours, with one minimal line of copy across all of them, so people react to the visual and not the words. This is the Image Creative Test and the Video Creative Test.

Which concept? Whole ads, head to head

Each ad is a complete concept with its own visual and its own copy. The winner tells you which direction landed, not which single element did the work, so Heatseeker will offer a follow-up that isolates why it won. This is the Full Creative Test.

Which product? Your products, one script

Each ad shows a different product of yours, with its own image and name, on one copy template where only the product name changes. The winner is the product your segment wants most. This is the Product Demand Test.

Step 2: Approve the ads

Heatseeker drafts the ads for you. Each one makes a single, distinct case. If two ads cannot be told apart in one sentence, the test produces noise, and Heatseeker says so before you launch.

Where the ideas come from. If you know which angles you want to test, those are the ads, in your words. If you are not sure, Heatseeker draws on what has already worked for you: your past experiments, the research in your Data Hub and your current market signal. It tells you where each angle came from, and says plainly when it has nothing to go on.

What gets written. Every ad gets a short hook on the image, an optional second line beneath it, a headline where the platform shows one, and the body copy. It is written for your segment, about your product, in your brand's tone of voice, and within each platform's length limits. Any words you supply run exactly as you wrote them.

Images and video. For message tests, Heatseeker generates one shared image, or uses one of yours. For visual, concept and product tests, you upload one creative per ad. You can attach an image in the chat and ask for it to be used or edited. Video is always yours: Heatseeker does not generate it. A Video Creative Test takes one video per ad and runs live on Meta. On TikTok every experiment runs on your uploaded videos, one shared video for a message test or one per product for a product test, and a video experiment cannot be simulated.

How many ads. Two is the minimum, ten the maximum, and three to five is where most teams land. More ads means more breadth, not a weaker answer. Each ad shares the same budget, so a wider set needs more spend or a longer run to give every ad enough exposure to separate.

Making changes. Edit any ad directly, or tell Heatseeker what to change: "make the second one punchier", "swap the background", "make it brighter", "split that headline over two lines". Ask for a rewrite and it first tells you where it thinks the lift is, then offers directions.

For live runs you also say where the ad sends people: your landing page, or a lead form with your privacy policy on Meta and LinkedIn. TikTok ads send people to a website only.

Nothing goes to market without your sign-off on the ads.

Step 3: Set the budget and launch

The review step is short. The thinking is done.

The launch checklist. Heatseeker will not launch an experiment that is not ready. Anything still missing is listed on the draft, and Launch stays disabled until every item is in place: your product, your brand, the goal, the method, the segment, live or simulation, at least two approved ads and at most ten, an image on every ad, where the ads send people, a budget for a live run, and legible terms text if you added any to the creative.

Budget, for live runs. Heatseeker proposes a maximum budget sized for your segment. Change it with the slider or by naming a figure. The budget is a cap, not a target: the experiment stops spending as soon as the answer is decisive. A lower budget may give you a readable lean without a decisive answer. On Meta and TikTok the review also shows which ad account is charged.

Run length. There is no duration to choose. Heatseeker sets a default for the platform and the size of your segment, typically five to seven days on Meta and seven to nine on LinkedIn, and runs until the answer is ready to act on. You can name a different run length if you need one.

Launch. The summary lists your product, the method, the goal, the ads and the budget. You click Launch. A simulation has no budget step: its summary appears as soon as you arrive, and the answer follows within minutes.

Step 4: Get your answer

Results open on the winning ad. Every ad is scored on what people did with it: a click counts more than a like, a form submit more than a click, and everything is normalized by how many people saw it, so the winner is the message and not the budget.

The winner carries one of four conviction ratings. They answer the question you actually have, which is whether you can act on this:

  • Ready to act. The gap is decisive and the confidence is high. Act on it.
  • Strong signal. The leader is clear but has not cleared the decisive bar. Directional, and often enough when you are narrowing a field.
  • Early signal. A leader is emerging. Do not commit yet.
  • Don't act yet. The ads have not separated. The bars are shown in grey.

A simulation on lightly trained AI customers never shows Ready to act, however clearly its votes separate, because the panel has limited live evidence behind it.

If you asked more than one segment, each gets its own winner. Within a segment, results can be split by demographics on Meta and by firmographics on LinkedIn, so you can see which message landed with whom. Every figure is drillable to the underlying responses.

Ask Heatseeker AI about your result on the results page, or from your own assistant through Connect to Heatseeker with MCP. Heatseeker also proposes the next move: a follow-up that isolates why a Full Creative winner won, a live run to confirm a simulation, or the next question on your roadmap. And every live experiment trains your segment's AI customers, so your next simulation is a little sharper.

Changing your mind

You can go back at any point before launch. Change the question, the segment or the ads, and Heatseeker takes you to the right step. If ads already exist when you change the question or the segment, it warns you once that they may need reworking, then makes the change. Switching to a different experiment type is a change to the question, so it happens in the goal step rather than by rebuilding the ads in place.

← All support guides