▶ Videos →

Blog Posts

73 articles · Updated every 3 hours · View all reads

All Articles 181,632 Blog Posts 166,033 Tech Tutorials 48,651 Research Papers 35,704 News 22,611 ⚡ AI Lessons

Reward Hacking in LLMs: When the Model Learns to Win the Game Instead of Doing the Job

Dev.to · Shrijith Venkatramana 🎮 Reinforcement Learning 3w ago

Reward Hacking in LLMs: When the Model Learns to Win the Game Instead of Doing the Job

Hello, I'm Shrijith Venkatramana, and I'm building LiveReview — a blast-radius aware AI code review...

Building Deterministic RL Environments for Cloud Infrastructure Evaluation: What Actually Transfers From Production Engineering

Dev.to · Marvin Okafor 🎮 Reinforcement Learning ⚡ AI Lesson 1mo ago

Building Deterministic RL Environments for Cloud Infrastructure Evaluation: What Actually Transfers From Production Engineering

AI models are increasingly being asked to design, deploy, secure, and recover production-grade...

Why RL Training Collapses on Long-Horizon Agents

Dev.to · Orkas 🎮 Reinforcement Learning ⚡ AI Lesson 1mo ago

Why RL Training Collapses on Long-Horizon Agents

Been heads-down lately, but I finally had a couple of days to catch up on some recent papers. Sharing...

I Taught an Agent to Act Directly - No Q-Values Needed (Day 6: REINFORCE)

Dev.to · Madhumitha Kolkar 🎮 Reinforcement Learning ⚡ AI Lesson 1mo ago

I Taught an Agent to Act Directly - No Q-Values Needed (Day 6: REINFORCE)

SERIES: Learning RL and JAX in Public - from zero to DeepMind :) Days 4 and 5 were value-based...

Unified Multimodal Chain-of-Thought Reward Model through ReinforcementFine-Tuning

Dev.to · Paperium 🎮 Reinforcement Learning 2mo ago

Unified Multimodal Chain-of-Thought Reward Model through ReinforcementFine-Tuning

Snapshot Once, Rollout a Thousand Times: A Practical RL Setup for Coding Agents

Dev.to · Sebastian Buzdugan 🎮 Reinforcement Learning ⚡ AI Lesson 2mo ago

Snapshot Once, Rollout a Thousand Times: A Practical RL Setup for Coding Agents

Your GPUs aren't the RL bottleneck, rebuilding the environment is. Snapshot the world once, fork it into thousands of rollouts. Real numbers, runnable harness.

The Mechanical Turk of Modern AI: How Reinforcement Learning from Human Feedback (RLHF) Actually Works

Dev.to · VelocityAI 🎮 Reinforcement Learning 2mo ago

The Mechanical Turk of Modern AI: How Reinforcement Learning from Human Feedback (RLHF) Actually Works

You type a prompt into ChatGPT. It responds with a thoughtful, measured, and remarkably polite...

Q-Learning From Scratch: Reinforcement Learning in a Gridworld

Dev.to · Devanshu Biswas 🎮 Reinforcement Learning ⚡ AI Lesson 2mo ago

Q-Learning From Scratch: Reinforcement Learning in a Gridworld

No labels, no "correct answer" — just rewards. Reinforcement learning lets an agent figure out the...

Reinforcement Learning with Verifiable Rewards: Why AI is Learning to Grade Its Own Homework

Dev.to · Shrijith Venkatramana 🎮 Reinforcement Learning ⚡ AI Lesson 2mo ago

Reinforcement Learning with Verifiable Rewards: Why AI is Learning to Grade Its Own Homework

Hello, I'm Shrijith Venkatramana. I'm building git-lrc, an AI code reviewer that runs on every...

The Missing Piece in Jason Wei's Framework: When to Go On-Policy

Dev.to · keeper 🎮 Reinforcement Learning ⚡ AI Lesson 3mo ago

The Missing Piece in Jason Wei's Framework: When to Go On-Policy

The Missing Piece in Jason Wei's Framework: When to Go On-Policy Jason Wei — the...

On Optimization Objectives in Reinforcement Learning

Dev.to · Garrin Costa, Jr. 🎮 Reinforcement Learning ⚡ AI Lesson 3mo ago

On Optimization Objectives in Reinforcement Learning

Reinforcement Learning: Optimization and Objective Methods There are a few paradigms or...

Import AI 460: Reward hacking society, RSI data from Anthropic; and RL-based quadcopter racing

Import AI 🎮 Reinforcement Learning 3mo ago

Import AI 460: Reward hacking society, RSI data from Anthropic; and RL-based quadcopter racing

When will markets price the singularity?

How to Stop Shipping Low-Quality RL Environments (with Examples)

Latent Space 🎮 Reinforcement Learning ⚡ AI Lesson 3mo ago

How to Stop Shipping Low-Quality RL Environments (with Examples)

Your broken harness is actively making the model worse. Here's what I keep seeing after years of eyeballing trajectories, and what you need to fix.

Understanding Reinforcement Learning with Human Feedback Part 6: How the Reward Model Trains the Original Model

Dev.to · Rijul Rajesh 🎮 Reinforcement Learning ⚡ AI Lesson 3mo ago

Understanding Reinforcement Learning with Human Feedback Part 6: How the Reward Model Trains the Original Model

In the previous article, we used loss functions and trained our reward model. In this article, we...

Understanding Reinforcement Learning with Human Feedback Part 5: Training the Reward Model with Loss Functions

Dev.to · Rijul Rajesh 🎮 Reinforcement Learning ⚡ AI Lesson 3mo ago

Understanding Reinforcement Learning with Human Feedback Part 5: Training the Reward Model with Loss Functions

In the previous article, we created a reward model. In this article, we will continue exploring how...

Understanding Reinforcement Learning with Human Feedback Part 4: Teaching Models Human Preferences

Dev.to · Rijul Rajesh 🎮 Reinforcement Learning ⚡ AI Lesson 3mo ago

Understanding Reinforcement Learning with Human Feedback Part 4: Teaching Models Human Preferences

In the previous article, we explored the part where we collect human preferences. In this article, we...

Understanding Reinforcement Learning with Human Feedback Part 2: Aligning Pretrained Models

Dev.to · Rijul Rajesh 🎮 Reinforcement Learning ⚡ AI Lesson 4mo ago

Understanding Reinforcement Learning with Human Feedback Part 2: Aligning Pretrained Models

In the previous article, we explored the concept of pre-training and its limitations without a...

Understanding Reinforcement Learning with Neural Networks Part 6: Completing the Reinforcement Learning Process

Dev.to · Rijul Rajesh 🎮 Reinforcement Learning ⚡ AI Lesson 4mo ago

Understanding Reinforcement Learning with Neural Networks Part 6: Completing the Reinforcement Learning Process

In the previous article we covered the basics of training, and how rewards, derivatives and step-size...

RLHF in 2026: when to pick PPO, DPO, or verifier-based RL

Dev.to · saurabh naik 🎮 Reinforcement Learning ⚡ AI Lesson 4mo ago

RLHF in 2026: when to pick PPO, DPO, or verifier-based RL

A working engineer's guide to InstructGPT-style RLHF — SFT, reward modeling, PPO with KL, DPO, and when RLVR replaces all of it.

Understanding Reinforcement Learning with Neural Networks Part 5: Connecting Reward, Derivative, and Step Size

Dev.to · Rijul Rajesh 🎮 Reinforcement Learning ⚡ AI Lesson 4mo ago

Understanding Reinforcement Learning with Neural Networks Part 5: Connecting Reward, Derivative, and Step Size

In the previous article, we explored the reward system in reinforcement learning In this article, we...

Understanding Reinforcement Learning with Neural Networks Part 4: Positive and Negative Rewards

Dev.to · Rijul Rajesh 🎮 Reinforcement Learning ⚡ AI Lesson 4mo ago

Understanding Reinforcement Learning with Neural Networks Part 4: Positive and Negative Rewards

In the previous article, we began the process of guessing the ideal output. Let us continue with the...

Understanding Reinforcement Learning with Neural Networks Part 3: Guessing the Ideal Output

Dev.to · Rijul Rajesh 🎮 Reinforcement Learning ⚡ AI Lesson 4mo ago

Understanding Reinforcement Learning with Neural Networks Part 3: Guessing the Ideal Output

In the previous article, we explored the limitations of backpropagation and why it is not ideal when...

Removing PER From Rainbow DQN Set a New Snake AI World Record

Dev.to · Stat Phantom 🎮 Reinforcement Learning ⚡ AI Lesson 4mo ago

Removing PER From Rainbow DQN Set a New Snake AI World Record

Greetings all! Quick context: this is part of an ongoing series where I'm building Rainbow DQN one...

Top 5 Reinforcement Learning Environments

Dev.to · Ethan 🎮 Reinforcement Learning ⚡ AI Lesson 4mo ago

Top 5 Reinforcement Learning Environments

An RL agent has nothing to learn from without an environment to act in. This piece covers what an RL...