AI Tools

Is Omnara a real alternative to Claude Managed Agents?

Published 2026-10-23 · Researched and price-checked on official sources

Claude Managed Agents bills $0.08 per session-hour while a session is running, plus token costs at Claude rates. Omnara is the Apache-2.0 alternative you can self-host: free platform, any model, agent history in your own Postgres. Its cloud machine pricing crosses Anthropic's runtime rate at about 1.9 GiB of RAM, which decides who should switch.

Key facts

What matters

Anthropic charges $0.08 per session-hour, metered to the millisecond and only while a session's status is running; idle, rescheduled and terminated time is not billed.
Omnara Cloud has no platform fee. Machine runtime is $0.0414 per GiB of memory per hour, so a 4 GiB machine runs at $0.1656/hour, or 2.07x Anthropic's rate.
Break-even is 1.93 GiB of memory. A 2 GiB machine held online for a full month costs $60.44 on Omnara Cloud versus $58.40 of session runtime on Claude Managed Agents.
Self-hosting Omnara is free under Apache 2.0, but you operate four services plus Postgres, Redis, an S3-compatible bucket and a persistent memory filesystem.
Anthropic's docs state Claude Managed Agents is in beta and not eligible for Zero Data Retention or HIPAA BAA coverage; a self-hosted Omnara keeps that event log in your own database.

What Claude Managed Agents is, and what it costs

Claude Managed Agents is a pre-built agent harness that runs in Anthropic-managed infrastructure, aimed at long-running and asynchronous work. Anthropic's overview describes agents, environments, sessions and events as its four primitives, with built-in Bash, file operations, web search and fetch, and MCP servers.

The billing has two dimensions. Tokens go at the standard Claude model rates, and session runtime is $0.08 per session-hour. The docs are unusually precise about the meter: it is measured to the millisecond and accrues only while the session's status is running, so time spent waiting for your next message, waiting on a tool approval, rescheduled, or terminated does not count. Web search inside a session is billed separately at $10 per 1,000 searches.

Two details matter for a buying decision. Session runtime replaced the older code-execution container-hour model, so you are not billed twice for compute. And the feature is still in beta: every request needs the managed-agents-2026-04-01 beta header, and Anthropic warns that behaviour may change between releases.

What Omnara is, in verified terms

Omnara is an open-source managed agent platform: an API, CLI, TypeScript SDK and dashboard that launch agents with a model, tools, secrets, permissions and machines attached. The repository is Apache-2.0 (the LICENSE file returns 200), written mostly in Go, with 3,173 stars and 244 forks as of 23 October 2026. The project was created in July 2025 and pushed to on the day of writing, and the omnarad daemon shipped v0.2.9 on 21 October 2026.

Self-hosting is one Compose command. You need Docker with Compose, then docker compose --profile app up -d brings up the stack on localhost:8000. Production is a different job: the self-hosting guide describes four long-lived services plus a one-shot migration job, pointed at your own Postgres, Redis, an S3-compatible bucket, a persistent memory filesystem, and one public URL in front of all of it. Sandboxes only work once that public URL exists.

The model story is the widest part of the pitch. Any endpoint that speaks OpenAI Responses, OpenAI Chat Completions or Anthropic Messages works: OpenAI, Anthropic, OpenRouter, Amazon Bedrock, LiteLLM, Ollama, or a model you host yourself. Machines run the omnarad daemon and dial out, so there are no inbound ports or SSH keys, and Omnara also lists sandboxes from eleven providers including Daytona, E2B, Modal and Freestyle.

State lives in Postgres. Every step of every agent is written there, which is what lets any worker pick an agent back up after a crash, and it is also why a self-hosted deployment can query its own agent history for evals or datasets.

The per-hour math neither vendor publishes

Put the two meters side by side and the pricing story inverts. Anthropic sells a flat $0.08 per running session-hour. Omnara Cloud sells memory: $0.0414 per GiB per hour online, plus $0.20016 per GiB per 30 days of retention. Divide one by the other and the crossover sits at 1.93 GiB.

A 1 GiB machine: $0.0414/hour, roughly half Anthropic's rate.
A 2 GiB machine: $0.0828/hour, a rounding error above Anthropic.
A 4 GiB machine: $0.1656/hour, 2.07x Anthropic's rate.
An 8 GiB machine: $0.3312/hour, just over 4x Anthropic's rate.

Omnara's own worked example makes the gap concrete from the other direction: a 4 GiB machine active one hour a day costs about $5 a month in runtime plus $0.80 in retention, so $5.77. The same 30 session-hours on Claude Managed Agents cost $2.40. Run the month continuously instead and the numbers converge: $58.40 of Anthropic session runtime against $60.44 for an Omnara Cloud machine with 2 GiB, then $120.89 at 4 GiB.

One caveat keeps this honest. The meters are not identical. Anthropic bills a session's running status; Omnara bills machine memory while the machine is online, and idle machines auto-sleep, which pauses runtime charges but not the retention line. Treat the break-even as a planning rule, not a quoted invoice.

What self-hosting the control plane actually buys you

The usual objection to a hosted agent platform is lock-in, and here the difference is structural rather than cosmetic. Claude Managed Agents does let you run self-hosted sandboxes on your own infrastructure. What stays with Anthropic is the harness, the session state and the model.

Omnara moves all three. The agent loop runs on your workers, the event log sits in your Postgres, and the model is whatever endpoint you configure. That changes three practical things:

Model economics. Route a cheap model for the loop and a strong model for the hard step, or keep a self-hosted model for volume work. Anthropic's platform runs Claude only.
Data handling. Anthropic's docs state that because sessions store conversation history, sandbox state and outputs server-side, Managed Agents is not currently eligible for Zero Data Retention or HIPAA BAA coverage. A self-hosted Omnara instance puts that history in a database you control, though any compliance claim still depends on your own infrastructure and model provider.
Approvals and access. Each tool can run, ask a person, or be blocked, and the platform enforces it. Omnara pairs that with organization and project roles, secrets stored once and shared per project, and one deployment serving multiple organizations.

The catch: what you take on by running it yourself

The free tier is free the way a self-hosted database is free. You are the on-call engineer for Postgres, Redis, object storage, the memory filesystem and a public URL, and the README says the local defaults are intentionally insecure and points production users at the deployment guide. There is no managed SLA and no vendor to escalate to.

Maturity is the second cost. A daemon at v0.2.9 with 27 open issues is a young dependency, and the GitHub release cadence suggests a project still settling. Compare that with a beta API from Anthropic where the risk is the opposite shape: the interface may change under you, but someone else runs the infrastructure.

Enterprise features also sit behind a conversation. Omnara's pricing page lists SSO, audit logs and on-prem onboarding under an Enterprise tier priced as "let's talk", not self-serve. If procurement needs those on day one, the $0 self-serve path is not the one you are buying.

Who should pick which

Stay on Claude Managed Agents if your agents are Claude-only by design, you want the harness and sandbox run for you, and you value a flat $0.08 session-hour over forecasting memory. The runtime fee is also cheaper than Omnara Cloud for anything above about 1.9 GiB, so a 4 GiB workload pays a premium for the open-source route.

Move to Omnara if at least one of these is true: you need more than one model provider, you already run Postgres and object storage, agent history has to stay in your own database, or you want to schedule and approve agent runs from Slack, Discord and GitHub through an API you control. Self-hosting on hardware you already pay for is where the cost argument actually wins, because the $0.0414 memory meter disappears.

Run both if you are prototyping. Omnara's config format is the same on Cloud and self-hosted, so a workflow can start on the free self-hosted stack and move to Omnara Cloud, or the reverse, without rewriting the agent definition.

At a glance

	Claude Managed Agents	Omnara Cloud	Omnara self-hosted
Runtime billing	$0.08 per session-hour while running	$0.0414 per GiB memory per hour online	Your own infrastructure
Platform fee	None beyond token rates	$0	$0
Models	Claude only	Any OpenAI or Anthropic compatible endpoint	Any OpenAI or Anthropic compatible endpoint
Agent history	Anthropic servers, not ZDR or BAA eligible	Omnara servers, queryable by API	Your own Postgres
Self-hosting scope	Sandboxes only	Not applicable	Harness, workers, API and state
Status and license	Beta, header managed-agents-2026-04-01	Commercial, same Apache-2.0 code	Apache-2.0

Claude Managed Agents vs Omnara, verified 23 October 2026

FAQ

Is Omnara free?

Self-hosting is free under Apache 2.0 and needs Docker with Compose. Omnara Cloud charges no platform fee either: you pay provider token rates for models you route through it, and machine runtime at $0.0414 per GiB of memory per hour online plus $0.20016 per GiB per 30 days of retention.

Can you self-host Claude Managed Agents?

Partly. Anthropic supports self-hosted sandboxes, so the code execution can run on infrastructure you control, but the harness, session state and model stay with Anthropic. Omnara self-hosts the entire control plane, which is the difference that matters if agent history has to live in your own database.

Is Omnara cheaper than Claude Managed Agents?

Only at small memory sizes or on your own hardware. Anthropic charges $0.08 per running session-hour, while Omnara Cloud charges $0.0414 per GiB-hour, which breaks even at 1.93 GiB. A 4 GiB omnara machine costs $0.1656 per hour, about 2.07 times Anthropic's rate, so the savings come from self-hosting, not from the cloud tier.