Model vendors pushed on speed and cost today. Anthropic shipped Claude Haiku 5.5, its fastest and cheapest small model, for high-volume work like classification, browser use and subagent tasks. OpenAI rolled out Ultrafast for GPT-6.1 Sol and brought Intelligent UI, with interactive diagrams, charts and buttons, to ChatGPT's 1.2 billion users. For an engineer, the practical shift is that cheap models are now good enough to run as subagents, and chat output is becoming generated UI that needs sandboxing. Security news was grim: attackers hijacked the .gh, .sl and .as ccTLDs to get fake Google TLS certificates, and OpenSSH 10.6 deliberately breaks two features. TSMC's 54.6% September revenue jump shows AI chip demand is still climbing.

• Anthropic ships Claude Haiku 5.5, its fastest and cheapest small model yet.
• OpenAI brings Intelligent UI to ChatGPT; GPT-6.1 Sol gets an Ultrafast mode.
• Hijacked .gh, .sl and .as ccTLDs were used to get fake Google TLS certs.
• DuckDB on an iPhone 17 Pro beat Databricks clusters on most TPC benchmarks.
• TSMC September revenue rose 54.6% year over year on AI chip demand.