Picking an autonomous AI agent in 2026 comes down to one question: do you want a coder, a researcher, or an open sandbox? Devin is the autonomous software engineer for scoped engineering tickets. Manus is the general-purpose operator for research, data, and document deliverables. OpenHands is the open-source coding agent you can self-host and control. Below we compare all three across coding depth, autonomy, setup, and price so you can delegate the right work to the right agent.

Quick picks at a glance

How we evaluate

We assess each agent on four dimensions: autonomy scope (how much of a task it finishes without hand-holding), coding depth (whether it writes, runs, and tests real code), setup cost (how much configuration or spend stands between you and a result), and transparency (whether you can see and audit what it did). Ratings reflect the directory’s verified user and editor scores; pricing comes straight from each vendor’s published plans. We do not run timed benchmarks or invent sample tasks — our comparison is based on documented capabilities, the vendor’s own positioning, and the hands-on notes recorded in each tool’s profile.

1. Devin — best for end-to-end software engineering tickets

Devin is Cognition’s autonomous AI software engineer. It maintains its own shell, editor, and browser, plans a task, and works toward a goal by writing, running, and testing code before reporting a pull request.

• Pros: Fully autonomous SWE agent; plans and runs multi-step tasks; Slack- and GitHub-integrated so it drops PRs into your existing workflow.
• Cons: The “replaces engineers” framing is controversial; it is expensive and can be slow on genuinely hard bugs.
• Price: Core starts at $20+/mo (usage-based); Team is $500/mo; Enterprise is custom.
• Skip it if: you need a cheap, hands-off researcher for non-code work — Devin is built for engineering backlog, not market reports.
• → Full profile: Devin

Devin is the agent we delegate real tickets to — a bug fix, a feature branch, a refactor — and it returns a PR you review like any teammate’s. It sits a step beyond GitHub Copilot autocomplete and closer to a junior hire than Cursor on agentic scope. The catch: we review the diff like any teammate’s, because it occasionally over-reaches.

2. Manus — best for non-technical, multi-step work

Manus is a general-purpose autonomous agent that plans, browses the web, runs code in a cloud workspace, and returns a finished deliverable — a spreadsheet, a slide deck, a report. It runs async in the background and notifies you when it is done.

• Pros: Genuinely autonomous end-to-end execution; strong at web research and data gathering; runs async so you can delegate and move on.
• Cons: Credits burn fast on long or looping tasks; results can vary between runs; support and cancellation complaints surface repeatedly.
• Price: Free tier for trial; Starter/Pro are monthly, credit-based plans; Enterprise is custom.
• Skip it if: your work is almost entirely code — Manus is broader than a coding agent but less precise on engineering depth than Devin or OpenHands.
• → Full profile: Manus

Manus is the agent we hand a multi-step job to — “research this market and write the report” — and it actually opens browsers, runs code, and returns a deliverable rather than just text. It is more agentic than Coze workflows and closer to a junior analyst you delegate to. The trade-off is cost and the occasional wrong turn you have to redirect.

3. OpenHands — best for self-hosted, controllable coding

OpenHands is an open-source platform of autonomous AI software engineers. It gives you a full autonomous dev environment — terminal, editor, and browser tools — that you can self-host in a sandbox, keeping the agent’s work isolated from your production systems.

• Pros: Full autonomous dev environment; open-source and self-hostable; runs code, shells, and browsers inside a sandbox.
• Cons: Complex to configure securely; needs oversight on real repositories.
• Price: Open source at $0; hosted usage-based plans for teams.
• Skip it if: you want a managed, no-setup experience — OpenHands rewards teams that can stand up and secure their own sandbox.
• → Full profile: OpenHands

OpenHands is the open-source coding agent we use for end-to-end software tasks — it plans, writes, runs, and debugs in a repo like a junior engineer. It is more autonomous than Cline on scope and a self-hosted Devin alternative. For IDE help we reach for Cursor.

Devin vs Manus vs OpenHands: which to pick

Devin and OpenHands both target software engineering, but they sit at opposite ends of the control spectrum. Devin is a managed service that drops PRs into Slack and GitHub; OpenHands hands you the source and a sandbox so you own the environment. Manus is the odd one out — it is not a coding tool first, it is a general operator, which is exactly why it wins for research and document work.

How to choose

• Engineering lead with a backlog → Devin. You want scoped tickets turned into reviewed PRs without standing up infrastructure.
• Researcher or operator delegating whole tasks → Manus. You want web research, data collection, and reports returned as finished files.
• Developer or team wanting control and zero license cost → OpenHands. You can self-host, audit the sandbox, and avoid per-seat fees.
• You mostly need in-editor help, not autonomy → skip all three and use Cursor or Claude Code for assisted coding.

Related tools & guides

• Claude Code — agentic coding inside your terminal and repo.
• Cursor — the AI-first editor many agents are measured against.
• Replit — cloud IDE with its own agentic build flow.
• Windsurf — another agentic editor alternative.
• Augment Code — codebase-aware AI pairing.

More reading:

• Best AI Agents 2026
• Best AI Coding Assistants 2026
• OpenAI Codex vs Jules vs Kiro 2026
• How to Do AI Code Review 2026