r/reinforcementlearning
87k members
r/reinforcementlearning is a subreddit with 87k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses training, struggling, struggle, ppo, and rl, and they frequently recommend/review simulation software, tech stack, and graphics cards.
Reinforcement learning is a subfield of AI/statistics focused on exploring/understanding complicated environments and learning how to optimally acquire rewards. Examples are AlphaGo, clinical trials & A/B tests, and Atari game playing.
Popular Themes in r/reinforcementlearning
#1
Advice Requests
: "Looking for feedback on my GPU-accelerated Snake AI project"
10 posts
#2
Solution Requests
: "New To RL (Need help as a Beginner)"
2 posts
#3
Ideas
: "Any research idea"
1 post
Popular Topics in r/reinforcementlearning
#1
Training
4 posts
#2
Struggling
4 posts
#3
Struggle
4 posts
#4
Ppo
4 posts
#5
Rl
2 posts
#6
Help
1 post
#7
Model
1 post
#8
Imitation
1 post
#9
Trajectory
1 post
#10
Self Driving
1 post
Products Discussed in r/reinforcementlearning
Simulation Software
7 reviews
#1
PyBullet
3.0★ from 2 reviews
#2
MuJoCo
1.0★ from 1 review
#3
Unreal
4.0★ from 1 review
Tech Stack
1 review
#1
SB3
4.0★ from 1 review
Graphics Cards
1 review
#1
NVIDIA
5.0★ from 1 review
Flair Used in r/reinforcementlearning
#1
Robot
: "Sim2Real on Two Wheel Balancing Robot"
11 posts
#2
DL
: "RL Fundamentals Blog Post Series"
10 posts
#3
R
: "Detectable ≠ encoded: oracle spots a one-rule world copy at ~99%, agent readout stays ~chance until survival makes it matter"
5 posts
#4
P
: "Training Qwen3.6 to RL-train other AI models"
4 posts
#5
Psych
: "Thought this belonged here. It looks like the one in OpenAI's Gym library environment"
4 posts
#6
Multi
: "Introducing OpenSpiel 2.0"
3 posts
#7
D
: "Are you attending the Reinforcement Learning Conference (RLC) 2026 in Montreal?"
1 post
#8
R, Robot
: ""Physical Atari: A Robust and Accessible Platform for Real-time Reinforcement Learning on Robots", Javed et al. 2026 {Keen Technologies} (first paper from John Carmack and Richard Sutton's new AI effort)"
1 post
#9
R, DL
: ""Ring-Zero: Scaling Zero RL to a Trillion Parameters for Emergent Reasoning", Tang et al. 2026 {Ant Group}"
1 post
#10
PPO
: "AI learns to play Minecraft (for example, getting through a Bedwars bed defense)"
1 post
Member Growth in r/reinforcementlearning
Yearly
+21k members(32.7%)
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195k members
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Last updated: August 12, 2026