AI · alternatives · 2026
24 alternatives to Synthetic Brew
Open-source AI agent runtime — build Agents in plain English
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 3 we have checked on their own sites, 3 of them free or with a free tier.
- 1
Open Agents▲161OpenAgents - 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 →
- 2
Opengeni▲341Ship AI agents within minutes. Infrastructure for Agents
Sep 2026 · opengeni.ai · its alternatives →
- 3

- 4

Build no-code agents to target markets untouched by AI
2024 · its alternatives →
- 5
Runtimefree tier, from $99/mo▲303Sandboxed coding agents for everyone on your team
May 2026 · runtm.com · its alternatives →
- 6
Open Agent Kit ▲165Build, customize, deploy – AI Agents your way with OAK
2025 · saalt.ai · its alternatives →
- 7
Brainfree▲8A small, blazingly fast and extensible agent runtime
Sep 2026 · github.com · its alternatives →
- 8
Linchpin▲74Open-source, self-hostable runtime for managed AI agents
May 2026 · linchpin.work · its alternatives →
- 9
OpenCharm▲86Open-source body for the AI agent you already run
14d ago · opencharm.dev · its alternatives →
- 10
Agentfield▲91Build & scale AI \ agents as microservices with IAM
Dec 2025 · agentfield.ai · its alternatives →
- 11

Open-source AI agent platform — own it, run any model
Jul 2026 · ibl.ai · its alternatives →
- 12

I'm working on a coding agent for building iOS apps. It's built on openspec and xcodebuildmcp. It's free and open source.
Apr 2026 · github.com · its alternatives →
- 13

Hey HN! A few months ago we shared our AI dataset generator as an open source repo, and the response was incredible (https://news.ycombinator.com/item?id=44388093). We got requests from folks who wanted to use it without the hosting overhead, so we created both options: a hosted version (https://www.metabase.com/ai-data-generator for instant use and the source code fully open (https://github.com/metabase/dataset-generator) for anyone who wants to self-host or contribute. Looking forward to seeing how you use it and what you build on top of…
2025 · metabase.com · its alternatives →
- 14

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 →
- 15

AI coding agents that run on your machine, not the cloud
Mar 2026 · agentfarm.se · its alternatives →
- 16

- 17

Fast, secure local AI workflows with minimal setup
2024 · github.com · its alternatives →
- 18

- 19
CollabAI▲12Open-Source AI Agent Platform, Built for Your Needs.
2025 · collabai.software · its alternatives →
- 20
OpenInfer▲19Keep your OpenClaw agents running. Free beta, no code change
Apr 2026 · openinfer.io · its alternatives →
- 21
NoInfra▲19Launch hosted AI agents without managing infrastructure.
Jul 2026 · noinfra.ai · its alternatives →
- 22

Excited to share a project I’ve been building for months! Would love to receive honest feedback :) My motivation: AI is clearly going to be the interface for data. But earlier attempts (text-to-SQL, etc.) fell short — they treated it like magic. The space has matured: teams now realize that AI + data needs structure, context, and rules. So I built a product to help teams deliver “chat with data” solutions fast with full control and observability (agent tracing, quality scores, etc) — am I wrong? The product allows you to connect any LLM to any data source with centralized context…
2025 · github.com · its alternatives →
- 23

- 24
myAgentsAi▲14Build AI agents fast—no code, simple, customizable
2025 · myagents-ai.com · its alternatives →
Also compare
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 →