OpenAI Announces Workspace Agents and Releases GPT-5.5 (April 22-23)

OpenAI revealed Workspace Agents—a custom-GPT successor integrating Slack, Salesforce and beyond—on April 22 as a research preview, then deployed GPT-5.5 and GPT-5.5 Pro across ChatGPT and Codex tiers on April 23. Workspace Agents remain free through May 6.