Controlling Reasoning Effort in LLMs

Sebastian Raschka, PhD Jul 18, 2026 243 11 19 Share It has been almost two years since OpenAI released o1, a model that popularized the idea of LLM-based reasoning models. DeepSeek-R1 followed about four months later, together with details of a reinforcement learning with verifiable rewards (RLVR) recipe to train such reasoning models.