OpenAI launches GPT-5.6 and ChatGPT Work, Meta unveils Muse Spark 1.1, Claude Code automates its /checkup
July 9, 2026: OpenAI launches GPT-5.6 (Sol, Terra, Luna) and its Codex-powered ChatGPT Work agent, Meta unveils Muse Spark 1.1 and its Meta Model API, and Claude Code v2.1.205 introduces the /checkup maintenance command.