Ranked · Coding agents
The 25 best AI coding agents (2026)
The best AI coding agents in October 2026 are Cursor, GitHub Copilot and Devin Desktop.
25 agents compared · entry plans $5 to $22.80 a month · 19 with a free plan · prices checked 2 September–24 October 2026
Reviewed by The Agents Index editorial team.
Ranked: 25 of the 32 coding agents we list. The 7 not yet ranked follow the ranking. All 32 in coding agents →
The ranking
All picks at a glance
| # | Agent | Best for | Starts at |
|---|---|---|---|
| 1 | CursorIn your editorvs GitHub Copilot | Professional developers who want a powerful AI agent woven into a familiar VS Code-based editor | Free, then $20/month |
| 2 | GitHub CopilotIn your editorvs Cursor | Enterprise and team developers already in GitHub and mainstream IDEs who want governed | Free, then $10/seat/month |
| 3 | Devin DesktopIn your editorvs Devin | Developers who want a full, agent-native desktop IDE and the freedom to run several coding agents | Free, then $20/month |
| 4 | ZedIn your editor | Developers who want a fast, open-source editor and the freedom to run Claude Code, Codex | Free, then $10/month |
| 5 | ClineIn your editorvs Cursor | Developers and teams who want a transparent, open-source, model-agnostic agent they fully control | Free, then $9.99/month |
Checked between 2 September 2026 and 24 October 2026. “About” figures are converted at the European Central Bank rate of 23 October 2026.
About this list
Coding agents differ most in where they do the work.
In your editor, the agent proposes changes you review as you go: Cursor, GitHub Copilot, Devin Desktop (formerly Windsurf), Zed, Junie, Gemini Code Assist, Cline and Kilo Code.
In your terminal, it reads the repository, edits files and runs commands, so you can script it and run it in CI: Claude Code, Codex CLI, Antigravity CLI, Warp, Aider, OpenCode, goose and others.
In the cloud, it works on its own machine and comes back with a pull request, a review or a running app: Devin, Factory, Augment Code, OpenHands, Replit Agent, Bolt and CodeRabbit.
Most of them now reach more than one of these places. Each sits where its maker puts the work first, and its listing shows every place it runs. If you want help while you write, start with the editor group. If you want an agent you can script, start with the terminal. If you want to hand over a whole ticket, start with the cloud.
25 agents, ranked. How we rank
Featured agents
This spot is open
Featured agents show here and at the top of their category.
- API access: Not stated
- Free tier: Not stated
- MCP server: Not stated
- Own API key: Not stated
- Open source: Not stated
- Self-hosted: Not stated
The ranking
In your editor
Editor’s pick
Best forProfessional developers who want a powerful AI agent woven into a familiar VS Code-based editor, with first-class model choice and the option to be hands-off via Cursor Router.
VerdictThe category’s adoption leader for in-editor agent work: fast multi-file edits and per-request model choice (Claude, GPT, Gemini), at the cost of closed-source lock-in and Pro-tier fast-request limits under heavy use.
- Price
- Free, then $20/month · source
- Free to try
- Free plan
- Watch for
- No first-class headless or CI mode. Cursor is an interactive editor with a CLI and background agents, not a scriptable terminal agent in the same mould as Claude Code or Codex CLI.
Best forEnterprise and team developers already in GitHub and mainstream IDEs who want governed, reviewable AI coding at scale, with optional access to Claude Code and OpenAI Codex through the same interface.
VerdictThe safest enterprise default: the widest IDE coverage, a native GitHub issue-to-PR agent mode and the most mature governance controls, deliberately more conservative than Cursor or Devin.
- Price
- Free, then $10/seat/month · source
- Free to try
- Free plan
- Watch for
- Autonomy is deliberately conservative: the coding agent drafts a PR for review rather than shipping unattended.
Best forDevelopers who want a full, agent-native desktop IDE and the freedom to run several coding agents, including third-party ones, side by side.
VerdictThe former Windsurf, now Cognition’s Devin Desktop: a vendor-neutral "agent command centre" that runs Claude, Codex and Gemini side by side via the open Agent Client Protocol, if you can stomach three rebrands in two years.
- Price
- Free, then $20/month · source
- Free to try
- Free plan
- Watch for
- The Cascade agent name is deprecated; new work uses Devin Local, so older tutorials referencing Cascade are out of date.
Best forDevelopers who want a fast, open-source editor and the freedom to run Claude Code, Codex, Gemini CLI or other vendors' own agents natively via the Agent Client Protocol Zed created, instead of being locked into one editor's built-in agent.
VerdictThe only editor here built from scratch (GPUI/Rust) instead of forked from VS Code: open source and the creator of the Agent Client Protocol that runs Claude Code, Codex and Gemini CLI natively, now adopted by JetBrains too, but its extensions and remote-dev story are still catching up to VS Code's.
- Price
- Free, then $10/month · source
- Free to try
- Free plan
- Watch for
- No managed, Codespaces-style cloud development environment as of mid-2026 — remote development requires the user's own SSH-reachable server.
Best forDevelopers and teams who want a transparent, open-source, model-agnostic agent they fully control and pay for by usage, with optional flat-rate access to open-weight models.
VerdictThe open-source category leader: Apache-2.0, bring-your-own-key, available as an editor extension, CLI or SDK, with first-class MCP support; you own the keys, the model choice and the (unbounded, usage-based) bill.
- Price
- Free, then $9.99/month · source
- Free to try
- Free plan
- Watch for
- No built-in model. Cline is useless without an API key, a ClinePass subscription, or a local model, and results depend entirely on the model you bring.
Ranked 6 to 25
| # | Agent | Price | Actions |
|---|---|---|---|
| 6 |  JunieDevelopers and teams already standardized on a JetBrains IDE who want an agent Free, then about $11/seat/month | Free, then about $11/seat/month | |
| 7 |  Gemini Code AssistTeams standardized on VS Code or JetBrains who are already on Google Cloud From $22.80/seat/month | From $22.80/seat/month | |
| 8 |  | Free, then $15/seat/month | |
| In your terminal | |||
| 9 |  Claude CodeDevelopers and teams who want a terminal-native, scriptable agent that composes with CI From $20/month | From $20/month | |
| 10 |  Codex CLIDevelopers who already pay for a ChatGPT plan and want a terminal-native agent with granular Free, then $8/month | Free, then $8/month | |
| 11 |  Google Antigravity CLIDevelopers already inside the Google ecosystem (Google AI subscription, GCP billing) Free, then $30/seat/month | Free, then $30/seat/month | |
| 12 |  WarpDevelopers and teams who want one open platform that runs and coordinates multiple coding agents Free, then $20/month | Free, then $20/month | |
| 13 |  | Free | |
| 14 |  OpenCodeDevelopers who want a genuinely free, fully open-source coding agent that works Free, then $10/month | Free, then $10/month | |
| 15 |  JugglerVerified ownerDevelopers who want hands-on visibility into what an AI coding agent is doing to their codebase Free | Free | |
| 16 |  zotDevelopers who want a fast, free, Go-native coding-agent harness with real session-branching control Free | Free | |
| 17 |  Muse CodeCost-sensitive teams willing to trade code privacy for Contributor tier's roughly 12x cheaper input From $5/month | From $5/month | |
| 18 |  | Free | |
| In the cloud | |||
| 19 |  DevinEngineering teams offloading well-scoped migration tasks without adding headcount Free, then $20/month | Free, then $20/month | |
| 20 |  Replit AgentNon-technical founders who want a chat prompt to become a deployed, database-backed app From $20/month | From $20/month | |
| 21 |  FactoryEngineering organizations that want AI agents handling more of the SDLC than code generation alone From $20/month | From $20/month | |
| 22 |  | Free, then $25/month | |
| 23 |  OpenHandsOpen source-minded engineering teams and enterprises that want a self-hostable coding agent platform Free, then $0.10/1m input tokens | Free, then $0.10/1m input tokens | |
| 24 |  CodeRabbitEngineering teams, using a coding agent or writing code by hand, that want automatic Free, then $30/month | Free, then $30/month | |
| 25 |  Augment CodeEngineering leaders at organizations who want AI agents running full SDLC loops end to end From $20/month | From $20/month | |
| In this category, not yet ranked | |||
 LettaDevelopers and researchers who specifically need an agent whose memory, skills | |||
 ZencoderAI coding agent platform with desktop, IDE and CI agents that plan, build, test | |||
WTAgentOpen-source CLI that drives your existing ChatGPT | |||
 ModurianVerified ownerBrowser workspace where agents plan, write, preview and deploy web apps with models included | |||
 OrbiVerified ownerOpen-source agent line turning labelled GitHub Issues into reviewed merges and tagged releases | |||
 JetBrains AIJetBrains IDE users who want several coding agents under one governed subscription | |||
 Junie by JetBrainsJetBrains IDE users who want one coding agent in the editor, the terminal and CI | |||
Side by side
Every field, side by side
Scroll sideways to see them all.
| Feature | Cursor | GitHub Copilot | Devin Desktop | Zed | Cline | Junie | Gemini Code Assist | Kilo Code | Claude Code | Codex CLI | Google Antigravity CLI | Warp | Aider | OpenCode | JugglerVerified owner | zot | Muse Code | goose | Devin | Replit Agent | Factory | Bolt | OpenHands | CodeRabbit | Augment Code | Letta | Zencoder | WTAgent | ModurianVerified owner | OrbiVerified owner | JetBrains AI | Junie by JetBrains |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Description | Coding agent in a desktop editor, terminal CLI, cloud VMs and CI, priced per seat plus token usage. | GitHub's AI coding assistant and cloud agent, from editor completions to pull-request review. | AI IDE with a Kanban command center for running local and cloud coding agents; the renamed Windsurf. | Rust-based code editor with a built-in agent panel, ACP external agents and Zed-hosted models. | Open-source coding agent for VS Code, JetBrains, the terminal and CI, running on whichever model you bring. | JetBrains coding agent for the terminal, JetBrains IDEs and CI, running on hosted or your own model keys. | Google's per-seat AI coding assistant and agent for IDEs, the terminal and GitHub pull requests. | Open source AI coding agent for VS Code, JetBrains, CLI and cloud, with 500+ models at provider rates. | Agentic coding tool from Anthropic that edits your codebase, runs commands, and opens pull requests. | OpenAI's terminal coding agent for inspecting, editing and running repository code from the shell. | Terminal agent (agy) that runs Google Antigravity coding agents and parallel subagents. | Agentic development environment: a terminal, a standalone agent CLI, and unattended cloud coding agents. | Open-source terminal AI pair programmer that edits files in your local git repo and commits the changes. | Open source AI coding agent for the terminal, desktop, IDE and browser, with any LLM provider. | Visual workbench for AI coding agents: branching conversation trees, inspectable model transactions, local or remote. | Single-binary terminal coding agent harness in Go, with 30+ model providers and any-language extensions. | Meta's terminal and CI coding agent, built on the Muse Spark model. | Open source AI agent for code and workflows, with desktop app, CLI, MCP extensions and your own model keys. | Cloud AI software engineer that takes a ticket, works in its own VM, and opens a pull request. | Chat-driven agent that builds, tests and publishes full web and mobile apps on Replit's cloud. | Droid coding agents that run in the desktop app, CLI, IDEs, CI and Factory-managed cloud computers. | Browser-based AI app builder that turns prompts into working web and mobile apps. | Open-source software engineering agent with GUI, CLI, SDK and an enterprise control plane. | AI code review across pull requests, IDE and CLI, with agentic fixes, pre-merge checks and security review. | Cosmos platform running fleets of coding agents across review, ticket-to-PR, verification and incidents. | Stateful agent harness, cloud and SDK for agents with persistent, git-versioned memory. | AI coding agent platform with desktop, IDE and CI agents that plan, build, test and review across repositories. | Open-source CLI that drives your existing ChatGPT, Claude or DeepSeek web session as a local coding agent. | Browser workspace where agents plan, write, preview and deploy web apps with models included. | Open-source agent line turning labelled GitHub Issues into reviewed merges and tagged releases, self-hosted or hosted. | Coding agents and AI completion inside JetBrains IDEs, paid for with AI credits or your own keys. | JetBrains' coding agent for the terminal, JetBrains IDEs and CI, with your choice of model. |
| Category | Coding agents | Coding agents, Cloud coding agents | Coding agents | Coding agents | Coding agents | Coding agents | Coding agents, AI code review | Coding agents | Coding agents, Terminal coding agents | Coding agents, Terminal coding agents | Coding agents, Terminal coding agents | Coding agents | Coding agents, Terminal coding agents | Coding agents, Terminal coding agents | Coding agents | Coding agents, Terminal coding agents | Coding agents, Terminal coding agents | Coding agents | Coding agents, Cloud coding agents | Coding agents | Coding agents, Cloud coding agents | Coding agents, Cloud coding agents | Coding agents, Cloud coding agents | Coding agents, AI code review | Coding agents, Cloud coding agents | Agent frameworks, Agent builders, Agent memory, Agent platforms, Coding agents | Coding agents | Coding agents | Coding agents | Coding agents, Cloud coding agents | Coding agents | Coding agents |
| Pricing | From Free | From Free | From Free | From Free | From Free | From Free | From $22.80/seat/month | From Free | From $20/month | From Free | From Free | From Free | From Free | From Free | From Free | From Free | From $5/month | From Free | From Free | From $20/month | From $20/month | From Free | From Free | From Free | From $20/month | From Free | From Free | From Free | From $40/month | From Free | From Free | From Free |
| API | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | No | - | Yes | Yes | Yes |
| Tags |
Questions buyers ask
What is the best AI coding agent?
It depends on where you want to work. For the smoothest in-editor GUI experience, Cursor. For the safest enterprise default with the widest IDE coverage, GitHub Copilot. For a scriptable terminal agent that fits CI, Claude Code. For a fully autonomous agent you delegate a whole ticket to, Devin — or a full-SDLC platform coordinating specialist agents across triage, testing and release, Factory. For a zero-setup browser app builder, Bolt.new or Replit Agent. For a free, open-source tool you fully control, Cline, Aider, OpenCode, the self-hostable, enterprise-ready OpenHands, or Goose if you'd rather reuse an existing Claude, ChatGPT or Gemini subscription than manage a separate API key. For running Claude Code and Codex side by side in one AI-native terminal instead of picking just one, Warp. And if you want an agent that reviews the code any of the above produce rather than writes it, CodeRabbit.
Which AI coding agents are free or open-source?
Cline, Aider, OpenCode, OpenHands, Kilo Code, Juggler, Zot, Warp, Zed and Goose are all free, open-source tools (Warp's terminal client went dual AGPL-3.0/MIT in April 2026 — Oz, its cloud-agent orchestration platform, remains closed-source; Zed's core is GPL-3.0-or-later plus Apache-2.0 for select components; Goose is Apache-2.0 and governed by the Linux Foundation's Agentic AI Foundation) — you pay only your chosen model provider (or, for Warp/Zed, work within a metered credit/prediction allotment on their managed plans) (OpenHands' enterprise/ directory carries a separate, source-available license, but its self-hostable core is MIT; Goose is Rust-built and MCP-native, with no enterprise-gated fork). Cursor, GitHub Copilot, Devin, Replit Agent, Windsurf (Devin Desktop), Bolt.new, CodeRabbit and Antigravity CLI all offer a genuine free tier too, though the underlying tool stays closed-source and paid tiers add real usage limits — Factory is the one commercial listing here with no free tier or trial at any price point.
What is the difference between an in-editor agent and a fully autonomous one?
In-editor agents like Cursor, GitHub Copilot and Windsurf work interactively while you watch, proposing diffs you review as you go. Devin and Replit Agent instead run asynchronously on their own machine — you hand off a task and come back to a finished pull request or a deployed app rather than pairing with the agent live. Factory takes this furthest: instead of one agent, it coordinates a team of specialized "Droid" agents (code, review, test, docs, monitor) across an entire engineering pipeline, from triage through production monitoring.
Which coding agent is cheapest to try?
Cline, Aider, OpenCode, OpenHands, Kilo Code, Juggler, Zot and Goose cost nothing beyond your own model API key (or, for Goose, an existing Claude/ChatGPT/Gemini subscription via ACP), and Google's Antigravity CLI has a genuine $0/month tier too (with Gemini and Claude model access included, on a weekly rate limit). Among commercial tools, GitHub Copilot's Free tier (2,000 completions/month), CodeRabbit's Free tier (unlimited repos for automated PR review) and Claude Code's $17/month Pro plan are the lowest-cost entry points; OpenAI Codex CLI is bundled into ChatGPT's own Free plan too, though regular use typically runs $100–200/month per OpenAI's own figures.
Is there a fully open-source alternative to Cursor or GitHub Copilot?
Yes — Kilo Code (an MIT-licensed VS Code/JetBrains/CLI/Cloud extension with a hosted Gateway reaching 500+ models at provider rates), Cline (a VS Code/JetBrains extension), OpenCode (terminal, desktop and IDE), OpenHands (a self-hostable agent platform with enterprise SSO/RBAC on top of its MIT-licensed core), Goose (a Rust-built CLI and desktop app that also plugs into Zed, JetBrains or VS Code via the Agent Client Protocol) and Zed (a from-scratch native editor, not a VS Code fork) are all free, open-source and let you bring any model provider, including local Ollama models. Zed is the only one of the six that's a full standalone editor rather than an extension, desktop app or terminal tool, and it runs Claude Code, Codex or other agents natively via the Agent Client Protocol it created — the same protocol Goose itself supports. The tradeoff versus Cursor or Copilot is that you manage your own API keys (or, for Goose, an existing model subscription via ACP), hosting and costs directly instead of paying one flat subscription.
Is there an AI agent that reviews code instead of writing it?
Yes — CodeRabbit automatically reviews pull requests on GitHub, GitLab, Bitbucket and Azure DevOps (plus in-IDE review in VS Code, Cursor and Windsurf) instead of generating new code, so it pairs with any coding agent in this list rather than replacing one. Its Free tier covers unlimited public and private repos, with paid per-seat tiers adding linters, SAST tools and an agentic review chat.
Sources and method
Every price here was read on the maker's own pricing page.
- Cursor: cursor.com/pricing, checked 2 September 2026
- GitHub Copilot: github.com/features/copilot/plans, checked 24 October 2026
- Devin Desktop: devin.ai/pricing, checked 24 October 2026
- Zed: zed.dev/pricing, checked 24 October 2026
- Cline: cline.bot/cline-pass, checked 12 September 2026
All 25 sources
- Junie: jetbrains.com/store/ai, checked 24 October 2026
- Gemini Code Assist: codeassist.google/products/business, checked 24 October 2026
- Kilo Code: kilo.ai/pricing, checked 24 October 2026
- Claude Code: claude.com/pricing, checked 24 October 2026
- Codex CLI: learn.chatgpt.com/docs/pricing, checked 24 October 2026
- Google Antigravity CLI: antigravity.google/pricing, checked 22 October 2026
- Warp: warp.dev/pricing, checked 24 October 2026
- Aider: aider.chat/docs/faq.html, checked 30 September 2026
- OpenCode: opencode.ai/v2/docs, checked 21 October 2026
- Juggler: juggler.studio, checked 17 September 2026
- zot: github.com/patriceckhart/zot/blob/main/LICENSE, checked 28 September 2026
- Muse Code: dev.meta.ai/lp/muse-code, checked 20 September 2026
- goose: goose-docs.ai, checked 23 October 2026
- Devin: devin.ai/pricing, checked 24 October 2026
- Replit Agent: replit.com/pricing, checked 24 October 2026
- Factory: factory.com/pricing, checked 24 October 2026
- Bolt: bolt.new/pricing, checked 24 October 2026
- OpenHands: docs.openhands.dev/openhands/usage/llms/openhands-llms, checked 2 September 2026
- CodeRabbit: coderabbit.ai/pricing, checked 15 September 2026
- Augment Code: augmentcode.com/pricing, checked 22 October 2026
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Last issue · No. 1 · 13 October 2026Devin vs Claude Code: Which Should You Pick?
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