Open-source LLM app & AI-agent builder — visual workflows, RAG pipelines and tool-calling agents.

Build durable agents that act on your internal data — open framework.
| Spec | Fixie | Lindy |
|---|---|---|
| Agent Rank | 73 / 100 (A) | 77 / 100 (A) |
| Autonomy | Semi-autonomous | Semi-autonomous |
| Pricing | Free · OSS | Subscription · from $49 |
| Open source | Yes | No |
| Capabilities | Tool use, RAG, Memory, Multi-agent | Tool use, Memory, Voice |
| Integrations | 3 apps | 4 apps |
| Verified | — | Verified |
| Released | Feb 2025 | Apr 2025 |
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Auto-computed from autonomy, capabilities, integrations, pricing, maturity and editorial verification. Updated every deploy. How is this computed?
Pick Fixie if cost is the main constraint or if auditability or self-hosting matters.
Try Fixie →Pick Lindy if you want a vendor we've verified for accessibility and pricing accuracy.
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Pick Fixie if cost is the main constraint or if auditability or self-hosting matters. Pick Lindy if you want a vendor we've verified for accessibility and pricing accuracy. Most working teams running both can use Fixie for primary work and Lindy for the workflows where its specific strengths matter.
Fixie starts at Free · OSS; Lindy starts at Subscription · from $49. Fixie is the cheaper entry option. For team deployments the TCO can differ — use the AI Agent Rank TCO calculator for your specific volume.
Both Fixie and Lindy are Semi-autonomous agents — neither has a meaningful autonomy advantage over the other. The decision should hinge on capabilities and pricing instead.
Adjacent agents in the same category with overlapping capabilities — worth a side-by-side glance before you commit.
Open-source LLM app & AI-agent builder — visual workflows, RAG pipelines and tool-calling agents.

Open-source workflow automation with first-class AI agent nodes — self-host or use cloud.
"Multiplayer AI" — shared, governed company-wide agents across your stack.
