Meta plans to build Petal, a 4,300-mile subsea cable linking the United States and France, with a design intended to carry one petabit of data per second. It is a substantial new piece of AI-era internet infrastructure, though it is not a shortcut to faster broadband at home.
Meta AI Watch analysis
What happened
Petal is planned to enter service in 2029. BGR reports that Meta is developing it with Japanese firms NEC and Sumitomo Electric. The cable is designed to use two cores in each optical fibre, rather than the single core used by conventional fibres, to increase capacity without a corresponding increase in power use or physical infrastructure.
Meta says the cable could carry enough data for about 75% of the world’s population to stream music at once. That is a vivid illustration of capacity, not a promise about what any one person’s connection will do.
Why it matters
AI tools, cloud services and better-quality video all add to the volume of data moving between networks and data centres. Subsea cables are part of the infrastructure carrying that traffic, and Petal is a bet that capacity and resilience will need to grow along with demand.
The practical distinction is important: Petal is meant to strengthen the networks behind online services, not magically speed up a household connection. Broadband plans, Wi-Fi, the servers being accessed and network congestion still matter. And with service not expected until 2029, any difference for users is a long way off.
Our read
Petal is a notable engineering and infrastructure project, not a consumer internet upgrade in disguise. Its proposed capacity is eye-catching; the more useful test will be whether it comes online as planned and adds meaningful resilience as AI and other data-heavy services expand. The cable is being built for a future traffic jam, not to clear the queue on your video call tomorrow.
What to watch
- Whether Petal enters service on the planned 2029 timetable.
- How its two-core fibre design performs in operation.
- Whether added capacity improves resilience as well as handling more traffic.
Discussion spark: Should AI infrastructure providers be expected to invest in shared network capacity and resilience, or is that responsibility better left to telecoms operators?
Sources and evidence
- Source update (18 October 2026, 19:17 UTC)
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