Integrate Amplitude into OpenAI Ads custom audiences
Amplitude already groups people into behavioural cohorts from how they use your product, so it knows your power users and the ones slipping away. Connect it to Bluegrass and those cohorts become audiences you can target or hold out on OpenAI Ads, each with its own bid.
Your data is only used to build your audiences · never sold
What you can do with Amplitude on OpenAI Ads
Product teams build their behavioural cohorts in Amplitude, so it already knows who activated, who keeps coming back, and who churned. Bluegrass reads which cohort a person belongs to, not the raw events behind it, and uses it only to build and sync those cohorts into custom audiences on OpenAI Ads. Bluegrass only uses your data to build and update your audiences. Nothing else.
Once Amplitude is connected you can split people by how they behave in the product. Users who churned, users who never activated, and power users worth modelling a look-alike on all become separate lists, and you decide whether each one gets a higher bid adjustment or stays out of your prospecting.
Custom audiences you can build from Amplitude
Each one can be a target audience with its own bid, or a suppression list you hold out from prospecting.
Target the right people, exclude the rest
Win back churned users and bid more
Put more budget behind the churned cohort and people who never activated. They already know your product, so a higher bid adjustment on OpenAI Ads tends to pay back faster than reaching someone who has never heard of you.
Stop paying to reach power users
Hold your power users and weekly actives out of acquisition campaigns. They already come back on their own, so that ad budget moves to users you are at risk of losing.
Common ways advertisers use Amplitude
Win back the churned cohort
Build an audience from your churned cohort and raise your bid to reach them on OpenAI Ads before a lapsed user becomes one you never get back.
Push users past activation
Reach people who signed up but never hit the aha moment with a paid nudge, so fewer of them stall before they ever see the value.
Model look-alikes on power users
Use your top engagement cohort as the seed and lean toward audiences that resemble it, so spend follows the kind of user who sticks around.
Connect Amplitude in three steps
Connect Amplitude
Authorize Bluegrass with read-only access to your Amplitude cohorts. It reads which cohort a person is in, not the raw event stream or property values behind it.
Pick the segment
Choose a behavioural cohort, like churned in the last 30 days or your power-user group. Bluegrass pulls the matching people and uses them only to build the audience on OpenAI Ads.
Set a bid and launch
Mark the audience as a target or a suppression, give it a bid adjustment, and layer day parting on top before it goes live.
Your data stays yours
Bluegrass only uses your customer data to build and update your audiences on OpenAI Ads. We never sell it or use it for anything else, and you can disconnect any time.
- Bluegrass reads cohort membership, never the raw event stream or property values behind it
- Bluegrass uses your data only to build and update your audiences, never to sell or share it, and you can disconnect or remove it any time
- Audiences refresh as Amplitude cohorts change, so a user who stops returning moves into your win-back list automatically
Pair it with a goal and a schedule
Win back lapsed customers
People who bought once and went quiet are cheaper to win back than strangers are to acquire. Build a win-back audience from last-order dates and churned plans, then raise your bid so OpenAI Ads reaches them again.
See win back lapsed customers →Weight those bids by the hour
Audiences decide who you bid on. Day parting decides when, so budget lands in the hours that convert.
Explore day parting →More in product & customer engagement
Amplitude and OpenAI Ads, answered
What Amplitude data does Bluegrass use?
Cohort membership: which behavioural cohort a person belongs to, such as churned, never activated, or power user. Bluegrass reads cohorts, not the raw events or property values that define them.
Can I suppress my power users from ads?
Yes. Mark your power-user or weekly active cohort as a suppression audience and they are held out of prospecting, so you stop paying for ads to reach people who already come back on their own.
Does the audience stay fresh as cohorts change?
Yes. Audiences refresh as Amplitude cohorts update. When an active user stops returning they drop out of your engaged list and move into your win-back audience on the next sync.
Is my product data safe?
Yes. Bluegrass only uses your data to build and update your audiences for OpenAI Ads. It is never sold or used for anything else. You stay in control, and you can disconnect Amplitude or remove your data any time.
Turn Amplitude into OpenAI Ads custom audiences
Connect your account, build target and suppression audiences, and set a bid for each one.