The marketing name; the filing name. Apple sells 'Apple Intelligence' on stage; the 10-K records what it costs. Apple's fiscal 2025 Form 10-K reports research and development expense of approximately $34.5 billion, compared with about $31.4 billion in FY2024 and $29.9 billion in FY2023. Source: Apple Inc. Form 10-K (FY2025), retrieved via EdgarBeast, the SEC filing data API & evidence index.
A $4.6 billion increase over two years is not maintenance spending. For a company whose revenue base is mature, R&D growing faster than the top line signals a deliberate, compute-heavy program. The two obvious candidates are custom silicon — the Apple-designed chips across Mac, iPhone, and accessories — and on-device machine learning, both of which are expensive precisely because they refuse to outsource the hard part.
The momentum continues in the quarterly facts. Apple's first-half fiscal 2026 R&D reached about $22.3 billion across the two quarters ending March 28, 2026, up from roughly $16.8 billion in the comparable prior-year period — a run-rate consistent with the annual acceleration, not a one-time spike.
Why on-device matters to the spending: running models locally requires bespoke neural accelerators, memory architecture, and power engineering that a cloud provider amortizes across customers but Apple must build into every chip it ships. The decision to keep inference on the device — for privacy and latency reasons Apple markets heavily — is exactly the decision that pushes the R&D line up.
On-device, on the record: the strategy Apple describes in privacy terms shows up in the filing as a cost structure. You cannot promise that personal data stays on the phone and also run the intelligence somewhere cheaper; the $34.5 billion is partly the price of that promise.
Read the number as a roadmap. Sustained R&D growth at a mature hardware company is a commitment to in-house silicon and local AI — a bet that owning the whole compute stack is worth funding even when revenue is not growing as fast as the spending that powers it.