Claude Code competitors

  1. 1
    Open ReasonSign in on the web, or in the Mac app.
  2. 2
    Settings › ModelsConnect the plans you already pay for.
  3. 3
    In the composerGive Reason the branch and what's next.

Use Reason on the web, or in the Mac app.

Who competes, from the source.

Claude Code's main competitors are OpenAI's Codex, Cursor, GitHub Copilot, Cognition's Devin, Google's Antigravity, xAI's Grok Build, and open-source agents such as opencode, Aider and Cline. Reason competes as an always-on teammate that codes, and it also works with Claude Code: it can run Claude models on your Claude plan.

Claude Code competitors compared: price, plans and background runs

ToolWhat it isPricing (official)Subscriptions or keys it can useRuns in background
Claude CodeAnthropic's coding agent for the terminal, IDE, desktop and webPro $20 a month ($17 billed annually); Max $100; Ultra $200Claude Pro, Max or Ultra sign-in, or an Anthropic API keyYes: cloud sessions keep running after you close your laptop (paid plans, claude.ai sign-in)
CodexOpenAI's coding agent: CLI, IDE extension, desktop and web app, Codex cloudLimited in ChatGPT Free and Go ($8); Plus $20; Pro $100, $200 or $500 a monthChatGPT plan sign-in, or an OpenAI API key (no cloud features)Yes: Codex cloud, on Plus and higher plans
CursorAI code editor with Cloud Agents and a CLIFree; Plus $8 (Grok models only); Premium $30; Super $100; Ultra $200 a monthA Cursor or X Subscription plan; your own OpenAI, Anthropic, Google, Azure or Bedrock key for chat modelsYes: Cloud Agents, on Premium and higher
GitHub CopilotGitHub's coding assistant: IDE, Copilot CLI, Copilot app and cloud agentFree; Pro $10; $39 plan; Max $100 a month; Business $19 per seatA Copilot plan, billed in AI credits; Copilot CLI also takes your own provider keysYes: cloud agent; sessions on GitHub Actions run at most 59 minutes
DevinCognition's AI software engineer: Devin Desktop and Devin CloudFree; Pro $20; Max $200 a month; Teams $80 a month plus $40 per seatA Devin planYes: Devin Cloud, on Pro and higher
Google AntigravityGoogle's agent-first development platform: app, IDE and CLI$0 for individuals with basic weekly rate limits; higher limits with Google AI Pro and UltraA Google account, Google AI Pro or Ultra, or Gemini EnterpriseNot documented on its pricing page
opencodeOpen-source (MIT) coding agent for the terminal, desktop and IDEFree; optional OpenCode Go $10 or Go Plus $40 a monthChatGPT Plus/Pro, GitHub Copilot or GitLab Duo sign-in, or API keys for 75+ providers (Claude by API key only)No hosted runner documented; runs on your computer
AiderOpen-source (Apache-2.0) AI pair programmer in your terminalFree; you pay your model providerAPI keys for OpenAI, Anthropic, Gemini, xAI, DeepSeek, OpenRouter and others, local models, or a GitHub Copilot sign-inNo: runs on your computer
ClineOpen-source coding agent for VS Code, JetBrains, the CLI and desktopFree for individual developers; you pay for inferenceYour own OpenAI, Anthropic, Google and other API keys, or the Cline providerYes: Cline Cloud keeps working after you close your laptop
ReasonAlways-on teammate and coding agent: its own cloud computer per Session, memory, Loops and SlackPro $50 and Max $200 a month; no free planChatGPT, Claude, SuperGrok or X Premium+ and GitHub Copilot sign-ins, or your own API keysYes: Sessions run on Reason's cloud computers with your laptop closed

Prices and plans from each vendor's official pricing page or docs, checked Nov 5, 2026; US list prices. Sources are listed at the end of the page.

Compare a competitor with Claude Code on your code

  1. Open Reason on the web or the Mac app

    Sign in at reasonmachines.com, or download the Reason app for macOS from reasonmachines.com/download. Both open the same Sessions. Sending work to Reason needs a Pro or Max plan.

  2. Connect the plans you already pay for

    In Settings › Models, connect subscriptions such as Claude (Pro or Max), ChatGPT (Plus, Pro or Business), Grok (SuperGrok or X Premium+) or GitHub Copilot, or add API keys. Reason runs on your own accounts first; a Reason plan's credits cover the rest.

  3. Give it a task you know the answer to

    In the composer, name the repository and paste a task you've already solved, such as a failing test. Reason works on its own cloud computer, runs the tests and opens a pull request, so you can compare its diff with your other agent's.

  4. Switch the model and compare

    Start a second Session on the same branch with a model from another provider, and ask it to review the first diff. Each Session shows the model and account it ran on.

Claude Code competitors at a glance

Made byOpen sourceWhere it runsPrice
CodexOpenAICLI under Apache-2.0CLI, IDE, desktop, web, iOS; Codex cloud tasks keep working while your computer sleepsIncluded in ChatGPT Free and Go; Plus $20; Pro $100 to $500 a month
CursorAnysphereNot open sourceAI code editor; Cloud Agents run in cloud VMs, from the editor, web, iOS or SlackFree; Plus $8 (Grok models only); Premium $30; Super $100; Ultra $200 a month
GitHub Copilot cloud agentGitHubNot open sourceWorks in the background in a cloud environment; sessions on Actions run at most 59 minutesCopilot paid plans from $10 to $100 a month; Business $19 per seat
DevinCognitionNot open sourceCloud workspace with shell, IDE and browser; CLI, desktop; Slack and TeamsFree; Pro $20; Max $200 a month; Teams $80 a month plus $40 per seat
opencodeThe opencode projectMITTerminal, desktop and IDE; 75+ providers and local modelsFree; optional OpenCode Go from $10 a month
AiderAider-AI (GitHub)Apache-2.0Pair programming in your terminal; almost any LLM, local ones includedFree; you pay your model provider
ClineCline Bot Inc.Apache-2.0 (JetBrains plugin excepted)IDE, terminal and desktop; cron schedules; Slack and other chat apps; Ollama and LM StudioFree and open source; you pay your model provider
ReasonReason MachinesNot open sourceWeb, Mac and iOS apps, Slack, command line; its own cloud computer per Session, or yoursPro $50, Max $200 a month; credits

From each vendor's own pages, checked Nov 2, 2026. Also competing: Google Antigravity, with a $0 individual plan and Google AI Pro at $20 a month, and xAI's Grok Build, a terminal and headless coding agent. Gemini CLI moved free individual access to Antigravity CLI on June 18, 2026.

How they compare on benchmarks

On Artificial Analysis's Coding Agent Index v2.0 (October 2026: FrontierCode v1.1, Terminal-Bench 4.0 and SWE-Atlas-QnA-AA), Claude Code on Opus 5.5 scores 62, Codex on GPT-6 Astra 55 and Grok Build on Grok 4.7 47, as listed on its comparison pages, checked Nov 2, 2026. Scores measure a harness and model together; try the same task in each on your own repository.

Open-source agents (opencode, Aider, Cline, OpenHands) aren't on the index; their results depend on the model you give them.

What people on Reddit say

Two Reddit threads on the same question, read in full:

In an r/LocalLLaMA thread from April 2026 (over 150 replies) asking for a Claude Code-style agent for local models, many replies recommend opencode as the most plug-and-play option, several prefer pi for its small system prompt on consumer hardware, and others suggest Cline, Kilo Code or Roo Code in VS Code. A few point out that Claude Code itself can talk to a local model once its base URL is set.

In a small r/GithubCopilot thread from June 2026 (18 replies) asking which assistant developers actually use, the top reply likes both Claude Code and Codex, several say they moved to Codex for its limits, a few call Cursor the default answer, and several use Copilot because it's the tool their employer approves. Others mention opencode with DeepSeek and Antigravity for lower cost.

Reason: all your AI subscriptions in one coding agent

Use the subscriptions you already pay for (ChatGPT, Claude, SuperGrok/X Premium+, Copilot) or your own API keys in one coding agent. Hit your limit and Reason keeps going on your other connected accounts or Reason credits.

Reason is an always-on teammate that is also a coding agent: its own cloud computer per Session, memory across Sessions, Loops and Slack, with the model picked per task. Work that runs on your own subscription or API key is billed by that provider and keeps its limits; Reason's plans are Pro at $50 and Max at $200 a month, with no free plan, and it isn't open source.

On cost: in Reason's published benchmark on GPT-6 Astra at xhigh effort, with the same tasks and graders, Reason 1.1 scored 65.1 against Codex's 62.5 on Coding Agent Index v1.5, at 22% lower cost per solved task. That's Reason's benchmark of its own harness, with the runner published to reproduce it.

Sources (checked Nov 2, 2026; table and FAQs checked Nov 5, 2026)

Questions

Who are Claude Code's competitors?

Codex, Cursor, GitHub Copilot, Devin, Google Antigravity, Grok Build, and open-source agents such as opencode, Aider and Cline. Reason is an always-on teammate that codes and can run Claude models on your Claude plan.

Is GitHub Copilot a Claude Code competitor?

Yes. Copilot's cloud agent works on a repository in the background in a cloud environment and opens pull requests, on paid Copilot plans from $10 a month.

What is the cheapest Claude Code competitor?

opencode, Aider and Cline are free and open source; you pay your model provider, or nothing with a local model. Codex is included in ChatGPT Free and Go.

Which competitor scores highest?

On Artificial Analysis's Coding Agent Index v2.0, Claude Code on Opus 5.5 (62) is ahead of Codex on GPT-6 Astra (55) and Grok Build on Grok 4.7 (47).

What happens when an agent hits its usage limit?

Claude Code, Codex and Cursor stop or offer paid usage at their plan's limits. Hit your limit? Reason keeps going on your other connected accounts or Reason credits.

Is Reason affiliated with these vendors?

No. Reason is built by Reason Machines and is not affiliated with or endorsed by Anthropic, OpenAI, Anysphere, Cognition, GitHub, Google or xAI. Facts about their products come from their own pages, linked under Sources.

What is the closest competitor to Claude Code?

OpenAI's Codex: a terminal, IDE, desktop and cloud coding agent included with ChatGPT Plus ($20 a month) and Pro, much as Claude Code comes with Claude Pro ($20) and Max ($100).

Is there an open-source Claude Code competitor?

Yes. opencode (MIT), Aider (Apache-2.0) and Cline are open source and run on the model provider you choose, including local models; opencode can also sign in with a ChatGPT or GitHub Copilot plan.

Which Claude Code competitors keep working after I close my laptop?

Codex cloud, Cursor Cloud Agents (Premium and up), GitHub Copilot's cloud agent, Devin Cloud, Cline Cloud and Reason run in the cloud. Claude Code's own cloud sessions do too, on paid plans.

More guides