OpenAI released GPT-5.1 family models including 5.1-Codex and 5.1-Codex-Mini with improved steerability, faster responses, and new tools like apply_patch and shell command execution. Pricing remains unchanged from 5.0. Immediate integrations include GitHub Copilot, VS Code, Cursor, and Perplexity adopting GPT-5.1 models. Google DeepMind announced SIMA 2, a Gemini-powered agent capable of language instruction following, planning, and self-improvement without human feedback, targeting robotics applications.

New research on context engineering and agentic tool use patterns was published, with contributions from Weaviate and LlamaIndex on database query planning and chart parsing respectively. "Adaptive reasoning" and agentic coding improvements are highlighted in GPT-5.1- Instant.