Supports the Codex-as-infrastructure framing (post 4). Confirms GPT-5.4 in Codex and API ships with 'native, state-of-the-art computer-use capabilities' and '1M tokens of context.' This is the runtime that Workspace agents sit on top of — same Codex, different productization layer.
Supports the enterprise-strategy framing (posts 6-7). Denise Dresser (OpenAI's first CRO) on the 'AI superapp' — ChatGPT + Codex + agents as a unified workplace interface. Names OpenAI Frontier as the enterprise platform. Customer examples: Oracle, State Farm, Uber. Cites valuations: OpenAI $852B, Anthropic $380B. Motivates the 'both need durable enterprise revenue' claim in post 6.
Primary source. OpenAI's announcement. Confirms: evolution of GPTs, Codex-powered, team-shared, cloud-persistent, available in ChatGPT or Slack, research preview on Business/Enterprise/Edu/Teachers plans. Names use cases (software review, product feedback routing, weekly metrics, lead outreach, third-party risk). States 'GPTs will remain available while teams test workspace agents... we'll make it easy to convert GPTs into workspace agents' — the migration path language.
Sensemaker thread explaining what Workspace agents are, what they replace (GPTs), the Codex-as-infrastructure angle, why Slack deployment matters, the competitive/economic context, and what to watch.
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