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Tools & agents

Pick the tool for the job

Independent writeups of AI coding tools and autonomous agents: who each one is for, what it costs, and where it falls short.

13Tools reviewed 4Agents reviewed IndependentNo pay-to-rank

AI tools

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Claude Code

Anthropic · AI coding agent

Anthropic's coding agent for terminal, IDE, desktop, and web.

TerminalWebmacOSLinux +5 more
Last reviewed September 2026 Read review

Cline

Cline · Open-source AI coding agent

An open-source coding agent for VS Code, JetBrains, and the terminal with a Plan/Act workflow.

VS CodeJetBrainsCursorTerminal +2 more
Last reviewed September 2026 Read review

Codex

OpenAI · AI coding agent

OpenAI's coding agent for local and delegated cloud work.

TerminalWebCloudmacOS +4 more
Last reviewed September 2026 Read review

Cursor

Anysphere (SpaceXAI) · AI-native code editor

A VS Code-based editor built around agents and code completion.

macOSWindowsLinux
Last reviewed September 2026 Read review

DeepSeek Harness

DeepSeek · Open-source agent harness (developer preview)

DeepSeek's open-source agent harness where every part, including the agent loop, is a plugin.

Web UINode.js
Last reviewed September 2026 Read review

Devin Desktop

Cognition · AI code editor and agent manager

The editor formerly called Windsurf, rebuilt around managing local and cloud agents.

macOSWindowsLinux
Last reviewed September 2026 Read review

GitHub Copilot

GitHub · AI coding assistant and agent

GitHub's coding assistant with agent mode, code review, and a cloud agent.

VS CodeVisual StudioJetBrainsEclipse +4 more
Last reviewed September 2026 Read review

Muse Code

Meta · AI coding agent (CLI)

Meta's terminal coding agent, built around its own Muse Spark models.

TerminalmacOSWindows
Last reviewed September 2026 Read review

OpenCode

Anomaly · Open-source AI coding agent

Open-source coding agent with terminal, desktop, and IDE interfaces.

TerminalmacOSLinuxWindows via WSL +3 more
Last reviewed September 2026 Read review

Pi

Earendil · Open-source AI coding agent (CLI)

A minimal, extensible terminal coding agent you customize with TypeScript.

TerminalmacOSLinuxWindows
Last reviewed September 2026 Read review

Prime Agent

Prime Intellect · Open-source AI coding agent (CLI)

Open-source agent where every action runs through a persistent Python REPL.

TerminalmacOSLinux
Last reviewed September 2026 Read review

ZCode

Z.ai · Agentic development environment

Z.ai's free desktop coding agent, built around GLM-5.2.

macOSWindowsLinux (beta)
Last reviewed September 2026 Read review

omp (Oh My Pi)

Stencil Labs · Open-source AI coding agent (CLI)

A batteries-included fork of Pi with LSP, a debugger, and subagents built in.

TerminalmacOSLinuxWindows
Last reviewed September 2026 Read review

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AI coding tools compared
Tool Type Runs on Pricing Best for
Claude Code AI coding agent Terminal, Web, macOS, Linux, Windows, VS Code, JetBrains, Desktop, iOS Included with paid Claude plans Long, multi-step changes across a repository
Cline Open-source AI coding agent VS Code, JetBrains, Cursor, Terminal, Zed, Neovim Free and open source for individual developers Developers who want approval-gated, human-in-the-loop edits
Codex AI coding agent Terminal, Web, Cloud, macOS, Windows, VS Code, Desktop, iOS Included with every ChatGPT plan, with limits that vary by plan: Free, Go at $8 monthly, Plus at $20, Pro from $100, and Business at $25 per user monthly or $20 billed annually Running several delegated coding tasks in parallel
Cursor AI-native code editor macOS, Windows, Linux Hobby is free with limited agent requests VS Code users who want an AI-native editing workflow
DeepSeek Harness Open-source agent harness (developer preview) Web UI, Node.js Free and open source under the MIT license Developers building or experimenting with their own agent harness
Devin Desktop AI code editor and agent manager macOS, Windows, Linux Free tier with a light agent quota and unlimited tab completion and inline edits Developers who want to run and review several agents from one editor
GitHub Copilot AI coding assistant and agent VS Code, Visual Studio, JetBrains, Eclipse, Xcode, Terminal, Web, GitHub.com Copilot Free includes 2,000 completions and 50 chat requests a month Developers who live inside GitHub and want review built in
Muse Code AI coding agent (CLI) Terminal, macOS, Windows Free to install; model usage requires a plan Developers who want to evaluate Muse Spark 1.2 and 1.3 for coding
OpenCode Open-source AI coding agent Terminal, macOS, Linux, Windows via WSL, Desktop, Web, IDE extension The agent is free and open source Developers who want to choose their own model provider
Pi Open-source AI coding agent (CLI) Terminal, macOS, Linux, Windows Free and open source under the MIT license, with no hosted backend Developers who want to build their own agent workflow
Prime Agent Open-source AI coding agent (CLI) Terminal, macOS, Linux Free and open source under the MIT license Long-running autonomous tasks with a spending budget
ZCode Agentic development environment macOS, Windows, Linux (beta) The app is free Developers who want a low-cost agent built on GLM-5.2
omp (Oh My Pi) Open-source AI coding agent (CLI) Terminal, macOS, Linux, Windows Free and open source under the MIT license Developers who want IDE-grade diagnostics and debugging in the terminal

AI agents

Back to tools

A tool waits for your input; an agent takes a goal and runs with it. Every agent writeup states the autonomy level and what the agent can touch.

OpenClaw

OpenClaw Foundation · Self-hosted personal AI assistant

Open-source personal assistant that runs on your machine and answers on WhatsApp, Telegram, Slack, and more.

Autonomous (acts on chat instructions) Last reviewed September 2026
WritingCoding
Read review

Hermes Agent

Nous Research · Self-hosted personal AI agent

Open-source agent from Nous Research that builds its own skills and memory over time.

Configurable (human-in-the-loop to autonomous) Last reviewed September 2026
CodingWriting
Read review

Manus

Manus · Hosted general-purpose agent

Hosted agent that turns a goal into research, documents, and code.

Autonomous (with optional human checkpoints) Last reviewed September 2026
WritingCodingMarketing
Read review

Muse

Meta · Hosted personal AI agent

Meta's personal agent that sends email, books travel, and shops for you.

Autonomous (outbound actions checked by a separate agent) Last reviewed September 2026
Writing
Read review

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AI agents compared
Agent Autonomy Runs on Pricing Best for
OpenClaw Autonomous (acts on chat instructions) macOS, Windows, Linux, Self-hosted Free and open source under the MIT license, with no subscription or hosted tier Technical users who want an assistant they can message from their phone
Hermes Agent Configurable (human-in-the-loop to autonomous) macOS, Windows, Linux, Self-hosted Free and open source under the MIT license; bring your own model provider Developers who want an agent that remembers projects across sessions
Manus Autonomous (with optional human checkpoints) Web, Desktop, Telegram, WhatsApp, Slack Free plan with 300 credits a day Multi-step research and writing tasks with a clear deliverable
Muse Autonomous (outbound actions checked by a separate agent) Web, iOS, Android, WhatsApp Free tier with usage limits and an in-app usage meter Everyday errands across email, calendar, and bookings

Choose the model behind the tool

Best coding models Most of these tools let you pick the model. See which ones lead on coding. Compare models Put two models side by side on price, context window, and scores. Read the blog Model launches, price changes, and weekly roundups.

AI tools and agents FAQs

How does LMRank review AI tools?
Each writeup is built from the vendor's documentation, pricing pages, and changelogs, checked against independent reports where they exist. It states who the tool is for, what it costs, and where it falls short. Vendors cannot pay for placement.
What is the difference between an AI tool and an AI agent?
A tool waits for your input and you drive it step by step, even when it edits many files at once. An agent takes a goal and works toward it on its own, often across apps and accounts. Autonomous systems are listed under AI agents.
Which AI coding tool should I use?
Match the tool to where you work. Terminal-first developers usually pick Claude Code, Codex, or OpenCode, or Pi and omp if they want to customize the agent itself; developers who live in an editor pick Cursor, Devin Desktop, or GitHub Copilot; developers who want an approval step for every action and full control over the model pick Cline. Then choose the model with the coding rankings.
Are these AI tools free?
Cline, OpenCode, Pi, omp, Prime Agent, and DeepSeek Harness are free and open source; you pay the model provider directly for tokens. ZCode is a free app that bills GLM usage through Z.ai's coding plans. Codex, Cursor, Devin Desktop, and GitHub Copilot have limited free tiers, with paid plans from $8 to $200 a month; Muse Code plans start at $5, and Claude Code needs at least the $20 Claude Pro plan or an API key. Each writeup has a pricing summary and a link to the current pricing page.
What is an AI agent?
An AI agent takes a goal, breaks it into steps such as browsing, running code, editing files, or calling APIs, and returns a result. Once you set the goal it works without step-by-step input, which is why its access and safety limits matter more than a tool's.
Are AI agents safe to use?
It depends on what you connect. An agent with access to your email, files, or payment methods can act on all of them. Every agent writeup lists the access it needs and its known failure modes; start with read-only access and a separate account where you can.
How much do AI agents cost?
Usually two bills: the agent platform, billed per task, credit, or subscription, and the model tokens it spends. Self-hosted agents such as OpenClaw and Hermes Agent are free and open source, so you pay only for the model and the machine. Hosted agents such as Manus and Meta's Muse have free tiers with usage limits and paid plans up to $200 a month.

How we review AI tools and agents

Each writeup is built from the vendor's documentation, pricing pages, and changelogs, and checked against independent reports where they exist. We answer three questions: who the tool is for, what it costs in practice, and where it falls short. Vendors cannot pay for placement or a better verdict.

The model matters as much as the interface. Most of these tools let you choose or bring your own model, and model rankings change month to month. Pick the interface that fits how you work, a terminal agent, an editor, or a browser extension, then use the coding model rankings to choose what runs inside it.

Agents get extra scrutiny. An agent that can read your inbox, run shell commands, or spend money needs a clear answer to what it can touch and what happens when it gets something wrong, so every agent writeup lists required access and safety notes before pricing.