not much happened today

**AI News** for early February 2026 highlights a detailed comparison between **GPT-5.3-Codex** and **Claude Opus 4.6**, with users noting **Codex's** strength in detailed scoped tasks and **Opus's** ergonomic advantage for exploratory work. Benchmarks on Karpathy's **nanochat GPT-2 speedrun** show **Opus 4.6** achieving better wall-clock performance, while **Codex-5.3-xhigh** sometimes suffers from context issues. **Karpathy** cautions that current models are not yet reliable for fully autonomous AI engineering. Discussions on agent swarms reveal emerging parallels to software organizational design, with **Anthropic-style** agent coordination systems and **LangChain/LangSmith** emphasizing environment engineering through tracing, sandboxing, and state control. The concept of Recursive Language Models (RLM) is introduced as a future direction for agent systems to reduce context rot and improve structured communication.