verl-project/verl
verl/HybridFlow: A Flexible and Efficient RL Post-Training Framework
⚡ Executive Summary & Quick Facts
Authoritative Sourceverl is verl is an open-source project written in Python: verl/HybridFlow: A Flexible and Efficient RL Post-Training Framework ..
| Repository | verl-project/verl ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | Python |
| Software License | Apache-2.0 |
| Community Traction | ★ 23.9K stars · ⑂ 4.8K forks · #618 globally |
| Maintenance | ● Active (Last commit: Oct 18, 2026) · 1,372 open issues |
| Target Audience | Developers and engineering teams building with Python, seeking reliable, tested, and actively maintained tooling for production workloads. |
Star History
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+598
STARS · LAST 30 DAYS
20
PER DAY
#113
MOST-STARRED Python
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +140 | +598 | +1.8K |
| Per day | 20 | 20 | 20 |
| Forks gained | +24 | +95 | +239 |
verl gained 598 stars in the last 30 days, about 20 a day, and now has 23.9K. It is about 2 years old and has averaged roughly 12K stars a year. It ranks #113 among Python repositories and #618 across all languages on GitHubRepo.
Trending Record
1
DAYS ON TRENDING
#4943
BEST RANK
Oct 19, 2026
FIRST APPEARANCE
Active
STATUS TODAY
verl has maintained a continuous presence across global trending indexes, peaking at #4943. Below is the 30-day activity profile:
💡 Overview
verl is an open-source project written in Python: verl/HybridFlow: A Flexible and Efficient RL Post-Training Framework .
Engineered for speed, consistency, and developer ease, it solves common hurdles in Python. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Python for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ pip install verl⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Python >= 3.9, pip, virtualenv
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
verl coordinates its core functionality through a modular Python pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed verl into Python backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open Apache-2.0 license.
🚀 Getting Started
Install verl using your package manager: `pip install verl`
Initialize your project workspace or configuration file for verl.
Import verl into your codebase or invoke it directly from your terminal.
Execute your test suite or run `verl --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Python, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
verl-project/verl is currently ranked #618 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #613 | processing/p5.js | JavaScript | ★ 24.1K | Compare ↗ |
| #614 | semantic-release/semantic-release | JavaScript | ★ 24.1K | Compare ↗ |
| #615 | PrefectHQ/prefect | Python | ★ 24K | Compare ↗ |
| #616 | ayangweb/BongoCat | Rust | ★ 24K | Compare ↗ |
| #617 | facebook/lexical | TypeScript | ★ 24K | Compare ↗ |
| #618 | verl-project/verl This Project | Python | ★ 23.9K | |
| #619 | MagicMirrorOrg/MagicMirror | JavaScript | ★ 23.9K | Compare ↗ |
| #620 | ifixai-ai/iFixAi | Python | ★ 23.9K | Compare ↗ |
| #621 | brave/brave-browser | — | ★ 23.9K | Compare ↗ |
| #622 | knadh/listmonk | Go | ★ 23.8K | Compare ↗ |
| #623 | AprilNEA/OpenLogi | Rust | ★ 23.8K | Compare ↗ |
Frequently Asked Questions
What does verl do? +
verl/HybridFlow: A Flexible and Efficient RL Post-Training Framework
What language is verl written in? +
The primary language is Python. Topics include: software.
Is verl actively maintained? +
Yes, the last recorded push was on Oct 18, 2026 with 1,372 open issues being tracked.
How many stars does verl have? +
verl has 23,918 stars and 4,773 forks on GitHub.
How does verl rank among GitHub repositories? +
With 23,918 stars, verl-project/verl is ranked #618 globally across all repositories tracked on GitHubRepo and #113 among Python projects.
What license is verl distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
