AI Catchup
Catch up on AI -- tools, practices, and what matters this week
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The AI Catchup -- July 15, 2026
OpenAI split ChatGPT into three agents -- Chat, Work, and Codex -- with Work as a new long-running agent for research and finished deliverables, on every desktop plan including Free. Plus: Cursor put GPT-5.6 Sol, Terra, and Luna in the model picker, shipped durable Side chats, and Anthropic launched Reflect.
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OpenAI Introduces GPT-Red: An Internal Automated Red-Teaming Model for Prompt Injection
OpenAI published details on GPT-Red, an internal automated safety red-teaming model designed to find prompt injection vulnerabilities at scale and strengthen defenses before broader deployment.
Cursor Adds GPT-5.6 Sol, Terra, and Luna
Cursor says the GPT-5.6 model family (Sol, Terra, Luna) is now available in Cursor and selectable from the model picker, with a published CursorBench score for Sol.
Cursor Adds Side Chats: Durable Agent Threads You Can @-Mention Back Into the Main Conversation
Cursor introduced Side chats: separate, durable agent conversations that run alongside a main chat and can be @-mentioned to pull context back.
OpenAI Launches ChatGPT Work: A Codex-Sibling Agent for Long-Running Deliverables
OpenAI introduced ChatGPT Work, a new agent in ChatGPT powered by Codex and GPT-5.6 that takes action across apps and files and stays on a project for hours to turn a goal into finished work. Work handles research and deliverables; Codex stays the dedicated software-development agent.
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