Keeper (matchmaking website)

Keeper requires answering questionnaires and providing a lot of user information in order to begin the matchmaking process, including career goals, SAT test scores, salary, net worth, lifestyle, and relationship philosophy.^[1][2][3] Users cannot create their own profiles.^[1][2] All profiles are auto-generated based on user-provided data.^[1][2] Users who are not seeking serious relationships are removed from the platform.^[4]

A non-AI algorithm uses basic information like age range and location to filter down the list of potential matches for each user as much as possible.^[1][2] Once the list is narrowed down to the top hundred users, LLMs and professional human matchmakers finish the selection process by picking a single person.^[1][2] If Keeper finds a match for a user, then the woman is notified by text message and shown the man's auto-generated profile first.^[1] If the woman is interested, then the man is notified by text message and her profile is shown to him.^[4] The marriage bounty contract and its price are then offered to the male user.^[1] This matchmaking process restarts each time a match fails. If Keeper is unable to find a match for a user at the end of the selection process, then it informs the user.^[1] A team of evolutionary scientists and psychometric experts at Stanford University help train the LLMs with anonymized data and assist in the matchmaking process.^[1][2]

All users can navigate the site and provide user information for free.^[3] For heterosexual relationships, all women are matched on Keeper for free.^[2][1] However, if a man is offered a match on the platform, then he has to sign a "marriage bounty" contract worth US$50,000 if his relationship is "kismet";^[1][5][2] Keeper defines kismet relationships as marriages, couples who have children together, couples who have been cohabiting for over a year, or couples who have been together for over 18 months.^[5][4] The full $50,000 is not paid immediately. The male has to pay $5,000 if he goes on a first date with his first match.^[1][5] If the male decides to go on a first date with a different match, then each consecutive first date for each match will be 20% cheaper than the last match.^[4] For same-sex relationships, the cost is split evenly between the two lovers.

The price for matching eventually becomes free once half of the total marriage bounty has been deducted.^[4] Each $5,000 payment is applied towards the total marriage bounty cost, so no user pays more than $50,000 for using the service.^[1][2][5] Keeper is trying to fully automate the matchmaking process, in order to make its current pricing for marriage bounties and matchmaking considerably cheaper.^[1]

Since launching, Keeper has had more than 1.6 million sign-ups, and about 300,000 of those have made accounts, as of December 2025.^[1][2] It is unknown exactly how many matches Keeper has made.^[1] According to Keeper's pitch deck, 10% of first dates from its beta version resulted in marriage or engagement, which is significantly better than dating apps.^[1][2] Its LLMs are trained on matchmaking insights that have been learned so far.^[1][2]

Before June 2026, Keeper was limited to heterosexual couples due to market demand.^[2][3] Keeper started supporting same-sex matching on June 2, 2026.^{[6][better source needed]} It does not offer explicit options for different gender identities.^[2][3] Keeper has a web app and no mobile apps.^[4] Keeper is only available for English speakers.^[4] As of 2026, users can sign up for Keeper anywhere, but a majority of users live in the United States, Canada, and the United Kingdom.^[4]

Keeper was founded in May 2022 by CEO Jake Kozloski.^[1] Keeper raised a $4 million pre-seed investment in October 2024.^[1][5]