--- title: "#rl articles | Hashnode" description: "Explore 8 articles tagged #rl on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/rl" --- Tag # #rl 8 posts · 3 followers [Swarit Shukla](https://hashnode.com/@swaritshukla) · [Sep 22](https://hashnode.com/posts/grpo-how-language-models-learn-to-reason/6ab22003c23b2ad2d81f0661) ### [GRPO: How Language Models Learn to Reason](https://swaritshukla.hashnode.dev/grpo-how-language-models-learn-to-reason?utm_source=hashnode&utm_medium=feed) Do you remember the times when we used to make LLMs count the occurrence of a specific letter in a word, like "How many r's in strawberry?" Back then, LLMs used to get it wrong a lot of times, but now 5 min read · [swaritshukla.hashnode.dev](https://swaritshukla.hashnode.dev/grpo-how-language-models-learn-to-reason?utm_source=hashnode&utm_medium=feed) [Roopesh K](https://hashnode.com/@roopesh-k) · [May 5](https://hashnode.com/posts/a-openenv-an-adaptive-curriculum-layer-for-verifiable-ai-environments/69fa061ca386d7f121a181bc) ### [A-OpenEnv: An Adaptive Curriculum Layer for Verifiable AI Environments](https://blog.roopeshk.dev/a-openenv-an-adaptive-curriculum-layer-for-verifiable-ai-environments?utm_source=hashnode&utm_medium=feed) A reinforcement-learning-inspired framework for making AI agent evaluation adaptive, reproducible, and difficulty-aware. 13 min read · [blog.roopeshk.dev](https://blog.roopeshk.dev/a-openenv-an-adaptive-curriculum-layer-for-verifiable-ai-environments?utm_source=hashnode&utm_medium=feed) [Kashif](https://hashnode.com/@ifkash) · [Feb 25](https://hashnode.com/posts/teaching-llama-3-to-be-polite/699f389dc9015c37f6ac5bc9) ### [Teaching Llama 3 to be Polite](https://blog.ifkash.dev/teaching-llama-3-to-be-polite?utm_source=hashnode&utm_medium=feed) Spent ~$3 on A100 (80GB) instance on RunPod 8 min read · [blog.ifkash.dev](https://blog.ifkash.dev/teaching-llama-3-to-be-polite?utm_source=hashnode&utm_medium=feed) [Abdulsalam Lukmon](https://hashnode.com/@Litmus) · [Jan 12](https://hashnode.com/posts/reinforcement-learning-in-trading-use-cases-and-step-by-step-guide-with-ray-rllib/69652ffbf2c590d132c18349) ### [Reinforcement Learning in Trading: Use Cases and Step-by-Step Guide with Ray RLlib](https://learn-with-litmus.hashnode.dev/reinforcement-learning-in-trading-use-cases-and-step-by-step-guide-with-ray-rllib?utm_source=hashnode&utm_medium=feed) Reinforcement Learning and Ray RLlib enhance trading strategies by enabling adaptive, continuously improving algorithmic systems 5 min read · [learn-with-litmus.hashnode.dev](https://learn-with-litmus.hashnode.dev/reinforcement-learning-in-trading-use-cases-and-step-by-step-guide-with-ray-rllib?utm_source=hashnode&utm_medium=feed) [shalin Shah](https://hashnode.com/@Shalin-Shah) · [Jul 12, 2025](https://hashnode.com/posts/reinforcement-learning-guide/6871f059a3d1870cc08a253b) ### [Reinforcement Learning Guide](https://guide-reinforcement-learning.hashnode.dev/reinforcement-learning-guide?utm_source=hashnode&utm_medium=feed) What is Reinforcement Learning? Reinforcement Learning is a trial-and-error learning process where an agent learns to make decisions by interacting with an environment. Key Components • Agent: The learner/decision-maker • Environment: The world agent... 2 min read · [guide-reinforcement-learning.hashnode.dev](https://guide-reinforcement-learning.hashnode.dev/reinforcement-learning-guide?utm_source=hashnode&utm_medium=feed) [Fotie M. Constant](https://hashnode.com/@fotiecodes) · [Mar 17, 2025](https://hashnode.com/posts/explaining-reinforcement-learning-to-my-barber/67d8726a9cf82b4956a11695) ### [Explaining Reinforcement Learning to My Barber](https://blog.fotiecodes.com/explaining-reinforcement-learning-to-my-barber?utm_source=hashnode&utm_medium=feed) Explaining reinforcement learning through a fun analogy of finding a reliable barber, highlighting trial, error, and learning from experience 4 min read · [blog.fotiecodes.com](https://blog.fotiecodes.com/explaining-reinforcement-learning-to-my-barber?utm_source=hashnode&utm_medium=feed) [Rasel Mahmud](https://hashnode.com/@programmingdude) · [Nov 14, 2024](https://hashnode.com/posts/comparison-between-model-based-q-learning-vs-model-free-q-learning/6735d3acaf8f00efab82af9b) ### [Comparison between Model-Based Q-Learning Vs. Model-Free Q-Learning](https://ai-eng.hashnode.dev/comparison-between-model-based-q-learning-vs-model-free-q-learning?utm_source=hashnode&utm_medium=feed) A comparison table between Model-Based Q-Learning and Model-Free Q-Learning: AspectModel-Based Q-LearningModel-Free Q-Learning DefinitionUses a model of the environment (transition and reward functions) to make decisions.Learns directly from i... 3 min read · [ai-eng.hashnode.dev](https://ai-eng.hashnode.dev/comparison-between-model-based-q-learning-vs-model-free-q-learning?utm_source=hashnode&utm_medium=feed)