Tagged: Reasoning

Articles

• Fundamentals · Part 14How LLMs Work

  Reasoning Models: Chain of Thought, RL and Test-Time Compute

  How o1 and DeepSeek-R1 learned to think before answering: chain of thought, RL with checkable rewards, GRPO, and what thinking tokens cost.

• Agents · Part 3Agents & Tool Use

  Reasoning and Acting: ReAct, Planning and Thinking, Measured

  ReAct, plan-and-execute and adaptive thinking on one 36-task tool set: accuracy, tokens and cost on Claude Haiku 5.5, and where more reasoning stops paying.