Claude Cowork vs Kortix: the open-source alternative
Kortix is the open-source AI Operating System: agents, skills, memory and connectors in one git repo you own, on any model, self-hosted free or in managed cloud. Claude Cowork is Anthropic's task agent for paid Claude plans: closed source, Anthropic models only, in Anthropic's cloud or your Bedrock, Google Cloud, or Microsoft Foundry account. Here is where they differ.
Kortix vs Claude Cowork, side by side
Cowork facts come from Anthropic’s own product and pricing pages; Kortix facts come from its docs.
| Feature | Kortix | Claude Cowork |
|---|---|---|
| What it is | The open-source AI Operating System | Anthropic's agent that completes tasks across files and tools |
| Vendor | The Kortix open-source project | Anthropic |
| Source | Open source. Read it, fork it, audit it. | Closed |
| Models | Any model provider, your own API keys | Anthropic models only |
| Where it runs | Kortix Cloud, your VPC, or your on-prem network | Anthropic's cloud, or your Bedrock, Google Cloud, or Microsoft Foundry account |
| Self-host | Yes, free | No |
| Where your configuration lives | Files in one git repo you own | In Anthropic's product |
| Price to start | Free plan at $0; self-host free | Paid plans only |
Where Claude Cowork stops
Claude Cowork is Anthropic's agent for non-coding knowledge work: you give it a goal, and it works across your files and connected tools to hand back finished work for review. It uses the same agentic approach as Claude Code, runs as a desktop app with web and mobile in beta, and schedules tasks on a cadence. Anthropic builds plugins, skills, connectors and sub-agents into it (Anthropic's Cowork page, checked October 2026).
Four facts about the product decide how far a company can take it:
- Closed source. Cowork is a hosted product. There is no code you can read, fork or audit, and no self-hosted build.
- Anthropic models only. Every run uses a Claude model. Anthropic's pricing page lists the families: Fable, Opus, Sonnet and Haiku.
- Hosted infrastructure. Anthropic's Cowork page documents two places the work runs: Anthropic's cloud, or your own Amazon Bedrock, Google Cloud, or Microsoft Foundry account. Both are Anthropic's managed service. Nothing runs on your own hardware.
- Paid plans. Cowork is included in Anthropic's paid Claude plans: Pro, Max, Team and Enterprise. Pro starts at $17 a month billed annually ($20 billed monthly), Max starts at $100, and Team is $20 per seat per month billed annually (Anthropic's pricing page, checked October 2026).
One constraint sits underneath the four: where your configuration lives. The setup that makes the agent yours, its skills, its connectors, its permissions, is configured inside your Claude account, in Anthropic's product. It is not a file you can version, diff or move.
What Kortix is instead
Kortix is the open-source AI Operating System: your agents, skills, company memory, and connectors in one git repo you own. Any model provider works with your own API keys. Run it on Kortix Cloud, in your VPC, or on your own on-prem network. Self-host is free.
Work runs on real cloud computers. Each session gets its own isolated sandbox and its own branch, and the agent commits there. When the work is ready, it opens a change request. Nothing reaches main until a person approves the merge. An agent can edit its own configuration and propose the change. A person approves it.
The repo holds the whole system: agents, skills, memory files, connector configuration and trigger definitions are files in it. You can grep it, diff it, roll it back and hand it to the next person. Nothing about how your agents work lives outside that repo.
The recommendation
Claude Cowork suits someone already paying for Claude who wants one steerable agent for documents, spreadsheets and scheduled tasks. Kortix, the open-source Claude Cowork alternative, is the recommendation when the system itself has to be yours: source you can audit, any model with your keys, self-hosting on your own infrastructure, and configuration in a git repo you own. On those four points, the comparison points one way. For the wider field beyond these two, the comparison page measures the alternatives against Kortix. Kortix makes the same case from the product side on its blog.
claudecoworkalternative.com is independent and has no affiliation with Anthropic.
The change request lifecycle
open ──(merge)──▶ merged (terminal)open ──(close)──▶ closed ──(reopen)──▶ openFAQ
No. Anthropic’s Cowork page documents two places it runs: Anthropic’s cloud, or your own Amazon Bedrock, Google Cloud, or Microsoft Foundry account. Both are Anthropic’s managed service, and no self-hosted build exists. Kortix self-hosts free on your own hardware, in your VPC, or on-prem.
Claude Cowork runs Anthropic models only. Anthropic’s pricing page lists the Claude families it can use: Fable, Opus, Sonnet and Haiku. Kortix runs any model provider with your own API keys, Anthropic’s included.
In Claude Cowork, your skills, connectors and permissions are configured inside your Claude account, in Anthropic’s product. In Kortix, agents, skills, memory, connectors and triggers are files in one git repo you own: versioned, diffable and portable.
No. Cowork is Anthropic’s closed, hosted product; there is no source to read, fork or audit, and no self-hosted build. Kortix is open source: read it, fork it, audit it, and self-host it free.
No. Kortix Cloud runs in the browser: sign up at kortix.com, create a project and start a session, with nothing to install. The free plan is $0 with 200 credits per month and 1 project, and self-hosting stays free when you want the system on your own infrastructure.
The open-source alternative, ready to self-host
Try Kortix free in the cloud, or self-host it on your own infrastructure with any model and your keys.