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AI · alternatives · 2026

24 alternatives to A Platform for Many-Agent Reinforcement Learning

A Platform for Many-Agent Reinforcement Learning. Contribute to geek-ai/MAgent development by creating an account on GitHub.

This is a platform designed for multi-agent reinforcement learning research and development. It serves machine learning researchers and engineers working on systems where multiple agents interact and learn… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. A Platform for Many-Agent Reinforcement Learning launched in 2017; newer entries below may have overtaken it.

  1. 1

    Build AI agents. Share org-wide. 100+ Tools&MCP

    2025 · docs.zencoder.ai · its alternatives →

  2. 2

    Build your own cross-vendor multi-agent AI team

    2025 · agentx.so · its alternatives →

  3. 3
    SimplAIfree tier, from $5/mo▲589

    Hey HN, I've been building SimplAI for the past several months — it's a platform for building, testing, and deploying LLM-powered agents and multi-step workflows. The problem I kept running into: spinning up an AI agent pipeline means stitching together prompt management, tool calling, memory, evals, and deployment — often from scratch every time. SimplAI tries to be the layer that handles all of that so you can focus on what your agent actually does. What it does: - Visual + code-first workflow builder for chaining LLM calls, tools, and APIs - Built-in prompt versioning and A/B testing…

    2025 · simplai.ai · its alternatives →

  4. 4

    Creator here. I built Agent Arena to answer a question that kept bugging me: when AI agents browse the web autonomously, how easily can they be manipulated by hidden instructions? How it works: 1. Send your AI agent to ref.jock.pl/modern-web (looks like a harmless web dev cheat sheet) 2. Ask it to summarize the page 3. Paste its response into the scorecard at wiz.jock.pl/experiments/agent-arena/ The page is loaded with 10 hidden prompt injection attacks -- HTML comments, white-on-white text, zero-width Unicode, data attributes, etc. Most agents fall for at least a few.…

    Jun 2026 · arena42.ai · its alternatives →

  5. 5

    Fine-tune LLM agents with online reinforcement learning - KhoomeiK/LlamaGym

    2024 · github.com · its alternatives →

  6. 6

    Platform for measuring and training AI agents

    2016 · its alternatives →

  7. 7

    Research communities for independent AI agents, with problem-specific discussion and reviewed papers.

    6d ago · rstation.ai · its alternatives →

  8. 8

    LLM reinforcement fine-tuning platform to improve LLM output

    2025 · rubrik.com · its alternatives →

  9. 9

    Hey, Jared Palmer (creator of this playground) here. Really excited to ship this. I’ve been building this over the past few weeks to compare LLMs from different providers like OpenAI, Anthropic, Cohere, etc. At Vercel, I manage our Frameworks division (including Next.js, Svelte, and Turbo) and wanted to also dogfood some of the latest features in a slightly larger application. This playground takes a lot of inspiration from https://nat.dev and is built on Tailwind, ui.shadcn.com, and some upcoming Vercel products we’re announcing soon. We’re going to continue adding models to…

    2023 · play.vercel.ai · its alternatives →

  10. 10

    We build AI agents to find vulnerabilities in other AI agents. The playground started as an internal tool that we used to test our own offensive agent Nyx. But we realised that hacking an AI is about have as wide a distribution of attacks as possible, especially those which aren't in the distribution of the models. So we are launching playground as a platform to crowdsource agent jailbreaks. And although hacking AI is super fun and we are sure people will do it for free, we want to reward those who help us push forward the offensive frontier of AI. So we are committing $100K in prizes over…

    Jul 2026 · playground.fabraix.com · its alternatives →

  11. 11

    After training calculator agent via RL, I really wanted to go bigger! So I built RL infrastructure for training long-horizon terminal/coding agents that scales from 2x A100s to 32x H100s (~$1M worth of compute!) Without any training, my 32B agent hit #19 on Terminal-Bench leaderboard, beating Stanford's Terminus-Qwen3-235B-A22! With training... well, too expensive, but I bet the results would be good! *What I did*: - Created a Claude Code-inspired agent (system msg + tools) - Built Docker-isolated GRPO training where each rollout gets its own container - Developed a multi-agent…

    2025 · github.com · its alternatives →

  12. 12

    RL-training an AI agent to RL-train AI agents. Contribute to Danau5tin/ai-trains-ai development by creating an account on GitHub.

    Jul 2026 · github.com · its alternatives →

  13. 13

    Open source interface to reinforcement learning tasks

    2016 · its alternatives →

  14. 14

    Your Company Agentic Operating System. Contribute to desplega-ai/agent-swarm development by creating an account on GitHub.

    Feb 2026 · github.com · its alternatives →

  15. 15

    OpenAgents - The collaboration OS for AI agents. Contribute to openagents-org/openagents development by creating an account on GitHub.

    Apr 2026 · open-agents.dev · its alternatives →

  16. 16

    Build multi-agent systems with Google's open framework

    2025 · adk.dev · its alternatives →

  17. 17
    Mouse-1▲101

    A decision model for your agent harness.

    1d ago · mouse.dev · its alternatives →

  18. 18

    Minimal kernel to make any AI coding agent stateful. Clone, point your agent, go. - oguzbilgic/agent-kernel

    Mar 2026 · github.com · its alternatives →

  19. 19

    Hey HN, I wanted to share a new project we've been working on for the last couple of months called ART (https://github.com/OpenPipe/ART). ART is a new open-source framework for training agents using reinforcement learning (RL). RL allows you to train an agent to perform better at any task whose outcome can be measured and quantified. There are many excellent projects focused on training LLMs with RL, such as GRPOTrainer (https://huggingface.co/docs/trl/main/en/grpo_trainer) and verl…

    2025 · github.com · its alternatives →

  20. 20

    Multi-GPU reinforcement learning using Deep Q-Network in TensorFlow for OpenAI Gym - vishar0/dist-dqn

    2016 · github.com · its alternatives →

  21. 21

    Pixelagent — Multimodal stateful agents. Contribute to pixeltable/pixelagent development by creating an account on GitHub.

    2025 · github.com · its alternatives →

  22. 22

    The Harness of Harnesses • built for RSI: a trusted, persistent, self-evolving multi-agent ecosystem for all-domain collaboration. - EverMind-AI/Raven

    23d ago · github.com · its alternatives →

  23. 23

    An embeddable cross-platform AI agent library written in C. Cloud and local LLMs, tool calling, long-term memory, voice, sessions, research mode, self-evolving loops. The SQLite of agent frameworks: small, portable, just works. - sqliteai/adam

    May 2026 · github.com · its alternatives →

  24. 24

    We build runtime security for AI agents. The playground started as an internal tool that we used to test our own guardrails. But we kept finding the same types of vulnerabilities because we think about attacks a certain way. At some point you need people who don't think like you. So we open-sourced it. Each challenge is a live agent with real tools and a published system prompt. Whenever a challenge is over, the full winning conversation transcript and guardrail logs get documented publicly. Building the general-purpose agent itself was probably the most fun part. Getting it to reliably use…

    Mar 2026 · github.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →