Updated May 21
Sep 30, 2026
ChatGPT Space replaces Library for eligible users, while Projects stay separate
OpenAI's DevDay launch gives teams a shared home for pages and files. The current help guide draws important lines around Projects, mobile editing, inherited access and automatic page updates.
OpenAIChatGPTSpace
Sep 30, 2026
ChatGPT plugins can now react to MCP events, with signed webhooks and clear limits
OpenAI's DevDay MCP Events launch lets a plugin start a ChatGPT workflow when its server reports a relevant change. The current integration uses verified, signed webhooks and leaves several mechanisms in the broader draft specification unsupported.
OpenAIChatGPTMCP
Sep 30, 2026
ChatGPT Sites can host plugins, but each visitor uses their own connection
OpenAI’s DevDay update brings supported plugins into Sites for workspaces. Builders still need to account for admin controls, visitor consent and limits on background access.
OpenAIChatGPTSites
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US Orders Anthropic to Shut Down Fable 5 and Mythos 5 Worldwide
The US government ordered Anthropic to block all foreign nationals from accessing its most powerful AI models, forcing the company to disable Claude Fable 5 and Mythos 5 globally. The unprecedented directive, reportedly triggered by concerns raised by Amazon CEO Andy Jassy, marks the most aggressive US export control action ever taken against a commercial AI model.
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Jun 12, 2026
OpenAI Considers Drastic Price Cuts as AI Token War With Anthropic Heats Up
OpenAI is weighing significant token price cuts as it braces for a pricing war with rival Anthropic, whose Claude Code tool has surged among developers. Both companies are bleeding billions on compute costs while racing toward trillion-dollar IPOs.
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Jun 10, 2026
OpenAI Confidentially Files for IPO, Targeting $1 Trillion Valuation
OpenAI has confidentially filed its S-1 with the SEC, joining Anthropic and SpaceX in AI's public-market moment. The $852 billion company loses $1.22 for every dollar of revenue but is targeting a Q4 2026 listing at up to $1 trillion. Builders should watch for pricing transparency, product strategy shifts, and increased competitive pressure.
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