Epic Games claims its rebuilt Epic Games Launcher — assembled largely through AI-assisted "vibe coding" — now runs faster than Valve's Steam client, Ars Technica reports.

The claim matters because the launcher has spent years as Epic's most-regularly mocked piece of software. Slow startup, heavy memory use and a general sense that the store's free-game giveaways were the only reason to open it: that reputation stuck. Now Epic is putting a performance comparison against Steam, the dominant PC storefront, at the center of its pitch.

The phrase "vibe coding" is doing real work here. It describes a development approach where engineers prompt AI tools to generate large portions of the codebase rather than writing it by hand, accepting and iterating on the output. For a shipping product that millions of players use daily as a store, library manager and Fortnite delivery mechanism, that's a notable engineering choice — and a marketing one.

What does the claim actually change?

For players, a faster launcher means less friction between clicking an icon and playing a game. That's the whole job of a launcher, and it's a job Steam has historically done well. If Epic's numbers hold up under independent testing, the gap closes on one of the more common reasons cited for avoiding the Epic Games Store.

For developers and publishers, the calculus is different. A snappier client doesn't change Epic's 12/88 revenue split, its free-game program or its lack of certain Steam features. But store perception drives where players buy, and where players buy drives where studios list. Anything that reduces the "I'd rather wait for the Steam release" effect has commercial weight.

For the wider industry, the interesting signal is the method, not the milliseconds. If AI-generated client code can ship at production scale and outperform a hand-tuned competitor, expect more infrastructure teams to say the quiet part loud. Launcher clients, storefronts and backend tooling are exactly the kinds of high-volume, well-understood software where AI code generation is easiest to justify.

The usual caveats

"Faster than Steam" is, so far, Epic's own characterization relayed through Ars Technica. Vendor benchmarks have a proud history of flattery, and launcher performance varies with library size, hardware and what the client is doing in the background. Valve also updates the Steam client regularly, so any comparison is a snapshot of a moving target.

The word "vibe-coded" also invites scrutiny of maintainability. Code that an AI writes quickly can be expensive to debug slowly — a tradeoff any studio weighing similar tooling will want measured, not assumed.

Still, the claim is a concrete one, testable by anyone with a stopwatch and both clients installed. Expect benchmark videos within the week.

The launch also lands amid an ongoing fight for PC storefront relevance, where Epic has leaned on exclusives, free titles and its engine-and-store bundle. A performance story is a new angle for that campaign.

Worth watching: whether Valve responds with Steam client improvements of its own, and whether independent benchmarks confirm Epic's numbers or quietly bury them.