Meta Builds AI Prediction Market App Arena, Documents Reveal
Meta is developing a standalone AI-powered prediction market app called Arena, according to internal documents obtained by NPR. The app, separate from Facebook and Instagram, will allow users to wager on real-world events using virtual points rather than real money, marking Meta’s boldest bet yet on the booming prediction market sector.
What Is Arena?
CEO Mark Zuckerberg has personally instructed a team to build Arena (codenamed “Antwerp” and “FBForecast”), a standalone mobile app for both iPhone and Android. Unlike its competitors Kalshi and Polymarket, which process billions in real-money wagers weekly, Arena will use a “play money” system where users receive a daily allotment of virtual points to bet on the outcome of future events.
The app is described as a “rebuild” of Meta’s earlier Forecast app, which launched in 2020 focused on COVID-19 predictions but was shut down in 2022 due to “the operational cost of manual question curation,” the documents state.
The AI Engine Powering Arena
Arena’s defining feature is its reliance on artificial intelligence. The app will use Meta’s Llama large language model to automatically generate prediction questions from trending topics, eliminating the manual curation that doomed Forecast. Meta’s AI will also provide “personalized market recommendations” to users and, crucially, will have the final say on whether predictions are correct — resolving markets in “near real-time,” according to the documents.
This AI-driven resolution system is untested at scale and raises significant questions about accuracy, bias, and accountability. If an AI incorrectly resolves a market, users have no clear recourse — a concern that gaming lawyer Daniel Wallach highlighted when describing the broader industry’s legal uncertainty.
The Prediction Market Boom
Meta’s entry comes at a moment of explosive growth for prediction markets. Total monthly trading volume hit a record $28.4 billion in May 2026, with Kalshi alone processing over $3 billion in weekly trades. Wall Street investment bank Bernstein projects the industry could reach $1 trillion in annual volume by 2030.
The sector has attracted a flood of competitors. DraftKings and FanDuel have launched prediction market services, President Trump’s TruthSocial has announced plans, and financial platforms like Coinbase, Kraken, and Robinhood have all entered the space. Meta’s entry represents the largest Silicon Valley player to join the fray.
Regulatory Limbo
Arena’s “play money” approach appears to be a deliberate regulatory strategy. More than 30 pending lawsuits challenge the legality of prediction markets, with the Commodity Futures Trading Commission (CFTC) at the center of the debate. The Trump administration has backed the industry, suing three states to block their attempts to regulate prediction markets under state gambling laws.
“We’re clearly in legal limbo,” Wallach told NPR. “And we might not have a clear answer for another year or two.”
By launching with virtual points, Meta can sidestep federal oversight, build its product, and potentially apply for CFTC licenses once the legal landscape settles. The documents suggest Meta is open to introducing cash-based betting in the future.
Can Meta Succeed Where Forecast Failed?
Meta’s first prediction market attempt, Forecast, never gained significant traction and was quietly shut down. This time, the stakes are higher. Zuckerberg has reportedly made Arena a “top priority,” and Meta’s 3.56 billion daily users across its platforms provide a massive potential distribution channel.
However, the company has historically struggled to launch successful standalone apps outside its core family of Facebook, Instagram, WhatsApp, and Threads. And the points-based model, while sidestepping regulation, also eliminates the profit motive that drives engagement on platforms like Kalshi and Polymarket.
What’s Next
Meta employees will test a prototype before a public release, though no specific launch date has been announced. The CFTC’s ongoing rulemaking on event contracts, expected to conclude in late summer 2026, will be a pivotal factor in determining whether Arena remains a points-based game or eventually transitions to real-money wagering.
For now, the biggest question is whether Meta can turn its massive user base into a thriving prediction market — or whether Arena will become another cautionary tale about the gap between distribution and engagement.