Is Langflow free? Open-source pricing for Langflow and Kortix
Is Langflow free? The software is, and Langflow Cloud starts with a free account, so the real question is what a team pays after that: hosting, model calls and the time to run it. Kortix is open source, and it keeps the same two shapes: self-host for free, or run on a managed cloud priced per seat.
Self-host Kortix for free
$ curl -fsSL https://kortix.com/install | bash$ kortix self-host init --domain kortix.example.com --admin-email you@example.com$ kortix self-host startThe self-hosting docs install the full stack on a server you control.
What "free" covers in Langflow pricing
Is Langflow free? The software is: Langflow is an open-source visual builder for AI workflows, agents and MCP servers, and you can install the desktop app, the Python package or the server yourself at no charge (Langflow docs). Langflow's own site also offers a free Cloud account, and it calls the cloud "a free, enterprise-grade cloud to deploy your app" (langflow.org). What is free in both cases is the software. What the flow runs on, and the model calls inside it, are separate.
What a team pays to run Langflow
A self-hosted Langflow instance needs a server you pay for, a volume for its data, and the time to install it, watch its dependencies and update it. A flow also calls models and vector stores, and those providers bill per token or per request, so the cost grows with traffic. Langflow's own site listed no standalone pricing page when checked in October 2026; the free Cloud account is the entry point it publishes, and professional services are quoted on request (langflow.org). So the shape is free software, paid infrastructure and model usage, plus the engineer time to keep it running.
Where Kortix fits on cost
Kortix is the open-source AI Operating System: your agents, their skills, your company memory and every connector live in one git repo you own, and every session runs on its own cloud computer (Kortix docs). Its pricing keeps two shapes. Self-hosting is free: install the full stack with the kortix self-host commands on a server you control and pay only for that machine. On the managed side, the free plan is $0 with 200 credits per month and 1 project, and the team plan is $40 per seat per month with 2,500 credits per month per seat, pooled (Kortix pricing). You can bring your own model keys or connect the ChatGPT plan you already pay for, and managed models draw on the same credit pool as Agent Computer runtime.
Which cost model fits your team
If your work is a flow you draw once and run many times, Langflow's free software and one small server can fit well, once you count the model calls and the upkeep. If the work is open-ended and reaches across your tools, Kortix runs agents that return finished work and keeps the whole setup in one repo you own, either self-hosted for free or on a per-seat cloud. The decision is less about the sticker price than about what each option costs after the software: hosting, model usage, and the time to operate it.
What teams ask about Langflow and Kortix pricing
The questions buyers ask before they pick a plan.
- 01
Is Langflow free to use?
Yes. Langflow is open source, so you can install and run it yourself at no charge, and its own site offers a free Cloud account. You still pay for the server and for the models and vector stores your flows call.
- 02
Does Langflow Cloud have a free plan?
Yes. Langflow's own site invites you to "sign up for a free cloud account" and calls the cloud "a free, enterprise-grade cloud to deploy your app" (checked October 2026). Infrastructure and model usage are billed separately.
- 03
What does it cost to self-host Langflow?
The software is free; the costs are the server, its storage, and the engineer time to install, update and monitor it. Flow runs add model and vector-store charges from those providers.
- 04
How much does Kortix cost?
Free is $0 with 200 credits per month and 1 project. The team plan is $40 per seat per month with 2,500 credits per month per seat, pooled, and self-hosting is free.
- 05
Do I pay for models with Kortix?
You can bring your own model keys or connect the ChatGPT plan you already pay for, so the provider bills you directly. Managed models on Kortix keys draw on the same pool as Agent Computer runtime.
Start free, or self-host it.
Give one agent a real job and read what it hands back.