AI 週報：2026/3/27–4/1 Anthropic 一週三震、Arm 首顆自研晶片、Apple 開放 Siri 給對手
anthropic apple claude openai sora
| Source: Dev.to | Original article
Anthropic made headlines this week with three back‑to‑back shocks that could reshape the AI landscape. The San Francisco‑based startup filed preliminary paperwork for an October IPO, signalling confidence that its rapid revenue growth – driven by the Claude family of models – can now be taken public. At the same time, an internal test of its next‑generation “Mythos” model was inadvertently exposed on a public forum, revealing a system that reportedly outperforms Claude Sonnet 5 on code‑generation and reasoning benchmarks. Within hours, a separate breach leaked portions of the Claude Code source code, prompting Anthropic to suspend external access and launch a forensic audit.
The leaks matter because they expose the thin line between competitive advantage and security in a market where model performance is a key differentiator. Investors will watch how the IPO filing addresses these risks, while rivals may scramble to assess whether Mythos offers a shortcut to comparable capabilities.
Across the Pacific, OpenAI quietly shut down Sora, its high‑profile text‑to‑video service, citing “resource constraints” and a shift toward more scalable multimodal offerings. The move underscores OpenAI’s willingness to prune experimental products in favour of core strengths such as ChatGPT and the emerging GPT‑5 line.
Meanwhile, Arm announced its first self‑designed AI accelerator in 35 years, a chip built on a 3‑nm process that promises lower latency and power consumption than competing Nvidia GPUs for edge inference. If the silicon lives up to its benchmarks, it could give European and Asian device makers a home‑grown alternative to the current GPU‑centric supply chain.
The week closed with Apple’s iOS 27 preview, which will open Siri to third‑party large‑language models. Developers will be able to route voice queries to Anthropic’s Claude, Google’s Gemini or other services, ending the de‑facto monopoly that ChatGPT held on Apple’s voice assistant. The change could accelerate a marketplace for AI‑enhanced apps while raising fresh antitrust questions about platform control.
What to watch next: Anthropic’s formal IPO filing and any regulatory response to the data breaches; OpenAI’s next product focus after Sora’s exit; performance data and adoption rates for Arm’s new accelerator; and the June rollout of Siri’s open‑AI interface, which will reveal how quickly third‑party models can capture voice‑assistant market share.
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