# Gravity adds 5% cashback for Slash card ad spending > Gravity users can receive 5% cashback when they pay for ads with a Slash card. Neither company disclosed a start date, duration, spend cap or eligibility restrictions. - Publication: Go Big News - By Nifal Adam, Go Big News Staff (Staff News) - Category: Startups - Published: 2026-09-19T18:20:34.635+00:00 - Canonical: https://www.gobignews.com/startups/gravity-adds-5-cashback-for-slash-card-ad-spending --- [Gravity](https://www.trygravity.ai/) has partnered with [Slash](https://www.slash.com/earn/perks) to offer 5% cashback when users pay for ads on Gravity with a Slash card, the companies said. The offer gives advertisers using Gravity a card-based incentive on ad purchases. Gravity describes itself as an ad network for AI products, while Slash offers business banking, corporate cards and cashback rewards. Neither company disclosed how much ad spend moves through Gravity, how many advertisers or Slash cardholders will use the integration, or the economics behind the 5% offer. They also did not disclose a start date, duration, spend cap or eligibility restrictions. The rate is above Slash's standard cashback program, which pays up to 2% for Pro plan members and up to 1.5% for Free plan members. Slash says its standard program has no cap and pays on a net-25 schedule, though it did not state whether those terms apply to the Gravity perk. The Next Web reports that Gravity runs a full-stack ad platform for AI products, including a demand-side platform for advertisers, a supply-side platform for AI app developers to monetize with ads, and an exchange connecting the two. The company also has an agent-to-agent product that lets AI shopping agents receive sponsored product recommendations from advertiser catalogues. Market researcher WPP Media estimates that ad spending within generative AI search could reach $100 billion by 2030, according to The Next Web. The outlet also reports that Gravity's competitors in AI-native advertising include OpenAI, which is building an in-chat ad platform with Adobe, StackAdapt and Criteo, alongside Google's existing ad business. Gravity is a San Francisco-based startup founded in 2025 by CEO Zach Oldham and CTO Leo Martinez, according to BetaKit. The company raised a $30.5 million Series A co-led by Lightspeed Venture Partners and Committed Capital, bringing total funding to $38.5 million, according to The Next Web. Slash was founded in 2020 by Victor Cardenas and Kevin Bai. It raised a $100 million Series C in April 2026 at a $1.4 billion valuation, led by Ribbit Capital and Khosla Ventures, according to Wikipedia. --- ## Companies in this story - Trygravity: https://www.gobignews.com/company/trygravityai --- ## X profiles in this story - @trygravityai: https://www.gobignews.com/profile/trygravityai - @slashapp: https://www.gobignews.com/profile/slashapp