This week in AI: Meta reportedly closing Llama, Anthropic's new model pulled by export controls within a week, and Apple partners with Google for Siri

A few stories from the past week that, taken together, point to a real shift at the model layer rather than just incremental releases: Meta and Llama. Multiple reports indicate Meta is stepping back from open-source Llama in favor of a proprietary program (internally referred to as "Muse Spark," with a new "Avocado" model) under Meta Superintelligence Labs. Llama crossed 650M+ downloads and was arguably the anchor of the open-weights ecosystem, so a pivot to closed development would be significant for anyone relying on that lineage. Anthropic and export controls. Anthropic launched Claude Fable 5 on June 9 (Mythos-class, 1M-token context, always-on adaptive reasoning, notable security/vuln-finding capabilities). On June 12, a US export-control directive reportedly forced Anthropic to suspend access to Fable 5 and Mythos 5. Regardless of the specifics, it's a concrete example of frontier model availability being governed by policy, not just product decisions. Apple and Google. At WWDC, Apple shipped its Siri overhaul with parts powered by a Gemini partnership. EU/China rollout is delayed on regulatory grounds. Cost/commodity trend. Google cut Gemini Ultra from $250 to $200/mo and shipped 3.5 Flash; Alibaba's Qwen3.7-Plus is running at ~1/6 the per-token cost of its top tier; and open-weight models like Qwen 3.6 27B (reportedly 77.2% on SWE-bench, fits in 24GB) and Kimi K2.6 are increasingly viable for local/production use via Ollama (v0.30.8, June 12). Platform agents. Google added Managed Agents to the Gemini API, Microsoft made Copilot Cowork GA plus "Autopilot" agents, and Anthropic shipped scheduled/cron agents in beta. My take as someone building on top of these APIs: the two forces I'm watching are (1) frontier availability becoming a policy/geopolitics variable, and (2) the platforms absorbing the agent-orchestration layer that a lot of startups were building. Practically, that pushes me toward provider abstraction and keeping an open-weight fallback wired up, rather than hard-coupling to any single closed model. Curious whether others here are actually maintaining open-weight fallbacks in production, or if that's still mostly theoretical for most teams.