Last month in AI - October 2025

"Welcome to the latest edition of Last month in AI! October felt like the "agent uprising" month. Every major platform shipped agentic workflows, GitHub became mission control for your AI coworkers, and, because it's 2025, OpenAI launched a browser that might actually kill Google. Meanwhile, Nvidia hit $5 trillion, humanoid robots moved into homes for $500/month, and AWS reminded us that even giants can fall."

"Anthropic dropped Claude Haiku 4.5 on October 15, delivering near-frontier performance at a fraction of the cost. It matches Claude Sonnet 4 on coding tasks while running 2× faster and costing just one-third as much ($1 per million input tokens, $5 per million output). Anthropic calls it their safest model yet (AI Safety Level 2), scoring lower on misalignment than even Sonnet 4.5. It's now live on Claude Code, Amazon Bedrock, and Google Cloud Vertex AI."

"OpenAI's Sora 2 kept expanding its invite-only rollout in October, and the hype is justified. The model now generates hyper-realistic videos with synchronized sound, a TikTok-style "For You" feed, creator profiles, and social features (likes, comments, follows). It's clearly gunning for Meta's Vibes and the short-form video crown. The only question left: can OpenAI afford the GPU bill, or will this turn into an ad-supported YouTube clone?"

Every major platform shipped agentic workflows and GitHub became mission control for AI coworker orchestration. OpenAI released a browser positioned as a Google competitor. Nvidia's market value hit $5 trillion while humanoid robots became available for home use at about $500/month. AWS faced reminders of vulnerability. Anthropic released Claude Haiku 4.5 with near-frontier performance, matching Sonnet 4 on coding while running 2× faster and costing one-third as much; Anthropic labels it AI Safety Level 2 and deployed it on Claude Code, Amazon Bedrock, and Google Cloud Vertex AI. OpenAI expanded Sora 2 with hyper-realistic video and social features. Google and Anthropic announced deployment of over one million TPUs through 2026, challenging NVIDIA's GPU dominance.

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