cmux vs Devin
The definitive head-to-head comparison for Vibe Coders.
cmux
Devin
Quick Comparison
| Feature | ||
|---|---|---|
| Agentic / Autonomous Mode | ||
| Code Autocomplete | ||
| Chat / Prompt-Based Coding | ||
| Multi-file Editing | ||
| AI Models | — | Proprietary (Cognition models) |
Scroll down for in-depth category breakdowns ↓
Quick Verdict
Devin wins 1 of 4 categories
cmux vs Devin: find out which platform fits your Vibe Coding workflow with a deep dive into AI capabilities, pricing, integrations, and real developer experience. This head-to-head overview highlights what makes each tool unique so you can make the right choice for your next build.
The Winner
Devin is the Vibe Coding Champion
AI & Coding Features
| Feature | ||
|---|---|---|
| Agentic / Autonomous Mode | ||
| Code Autocomplete | ||
| Chat / Prompt-Based Coding | ★ | |
| Multi-file Editing | ★ | |
| AI Models | — | Proprietary (Cognition models) |
| Image / Design to Code |
cmux is built around native macos terminal (swift + appkit) with gpu-accelerated rendering via libghostty, while Devin focuses on fully autonomous — assign a task and devin plans, codes, tests, and submits a pr on its own. Devin uses Proprietary (Cognition models). The key question is whether you need agentic capabilities that autonomously handle multi-step tasks, or inline completions that keep you in flow as you type. Review the table above to see which AI features each tool actually offers.
Platform & Access
| Feature | ||
|---|---|---|
| Platform Type | — | Cloud Agent (sandboxed IDE) |
| Runs in Browser | ||
| Built-in Deployment | ★ | |
| Git Integration | ||
| Open Source | ★ |
cmux and Devin take different approaches to where and how you code. Whether a tool runs in your browser or requires a local install matters for getting started quickly. Built-in deployment means you can go from prompt to live app without switching tools. Consider what fits your workflow — some builders prefer everything in the browser, while others want the power of a local IDE.
Pricing & Cost
| Feature | ||
|---|---|---|
| Free Plan Available | ★ | |
| Starting Price | Free (Open Source) | $20/mo (Core) + $2.25/ACU |
| Token / Credit Based | ||
| Can Buy More Credits | — | ★ |
| Has Daily / Usage Limits |
cmux is priced at free (open source), with a free entry point. Devin is priced at core $20/mo (pay-as-you-go, $2.25/acu) · team $500/mo (250 acus included, $2/acu overage) · enterprise custom (vpc, sso, dedicated support). Devin uses a credit-based system, so costs scale with usage. Pay attention to daily limits — some tools throttle usage even on paid plans during heavy coding sessions. Check whether you can buy additional credits if you hit the ceiling mid-project.
Experience & Reviews
| Feature | ||
|---|---|---|
| Beginner Friendly | ||
| Target Audience | — | Teams delegating full tasks to an autonomous agent |
cmux is aimed at experienced developers who are comfortable with code. Devin is aimed at experienced developers who are comfortable with code. The real test is how quickly you can go from idea to working app — setup time, documentation quality, and how intuitive the AI interaction feels all factor into the experience.
Feature data verified monthly. Some entries use automated inference. Report inaccuracy
What to do next
Related Comparisons
Which Should You Choose?
Use these decision criteria to find the right tool for your workflow.
Choose cmux if…
- ✓You work on multi-agent workflows projects
- ✓You work on macos developers projects
- ✓You need native macos terminal (swift + appkit) with gpu-accelerated rendering via libghostty
- ✓You need vertical tabs showing git branch, pr status, ports, and notification text per workspace
- ✓You need built-in scriptable browser for previewing and automating web interactions alongside terminal
Choose Devin if…
- ✓You work on autonomous agent projects
- ✓You work on end-to-end tasks projects
- ✓You need fully autonomous — assign a task and devin plans, codes, tests, and submits a pr on its own
- ✓You need sandboxed ide with shell, browser, and code editor for safe end-to-end execution
- ✓You need devin wiki auto-documents your codebase for faster onboarding and context sharing
Why these tools are being compared
Both cmux and Devin compete for builders who want fast, AI-assisted creation without losing control of their stack. cmux is built around native macos terminal (swift + appkit) with gpu-accelerated rendering via libghostty, while Devin is designed for fully autonomous — assign a task and devin plans, codes, tests, and submits a pr on its own. This matchup helps clarify which strengths matter most for your next launch.
Feature and pricing takeaways
On pricing, cmux offers free (open source), whereas Devin lists core $20/mo (pay-as-you-go, $2.25/acu) · team $500/mo (250 acus included, $2/acu overage) · enterprise custom (vpc, sso, dedicated support). Feature-wise, cmux stands out for native macos terminal (swift + appkit) with gpu-accelerated rendering via libghostty and vertical tabs showing git branch, pr status, ports, and notification text per workspace, while Devin delivers fully autonomous — assign a task and devin plans, codes, tests, and submits a pr on its own and sandboxed ide with shell, browser, and code editor for safe end-to-end execution. If you care about AI speed and responsiveness, compare the feature breakdown below to see which tool keeps your flow steady.
Who should choose each tool
Choose cmux if you need Multi-Agent Workflows and want a stack centered on Developer IDEs & Agents. Pick Devin when you value Autonomous Agent and prefer a tool that matches Developer IDEs & Agents. Check the feature comparison above to see which tool fits your workflow best.
At a Glance
| Detail | cmux | Devin |
|---|---|---|
| Pricing | Free (Open Source) | Core $20/mo (pay-as-you-go, $2.25/ACU) · Team $500/mo (250 ACUs included, $2/ACU overage) · Enterprise custom (VPC, SSO, dedicated support) |
| Trusted Rating | N/A | 4.5/5 (Product Hunt) |
| Category | Developer IDEs & Agents | Developer IDEs & Agents |
| Best For | Multi-Agent Workflows | Autonomous Agent |
| Key Strength | Native macOS terminal (Swift + AppKit) with GPU-accelerated rendering via libghostty | Fully autonomous — assign a task and Devin plans, codes, tests, and submits a PR on its own |
FAQs: cmux vs Devin
- What is the main difference between cmux and Devin?
- cmux focuses on native macos terminal (swift + appkit) with gpu-accelerated rendering via libghostty while Devin highlights fully autonomous — assign a task and devin plans, codes, tests, and submits a pr on its own. Both target developer ides & agents, but their onboarding, AI depth, and pricing models feel different.
- Which tool is better for speed and flow?
- Both cmux and Devin aim for smooth iteration. Check the feature comparison above to see which matches your workflow — factors like setup time, AI responsiveness, and integration depth matter most.
- How do cmux and Devin compare on pricing?
- cmux lists free (open source), whereas Devin offers core $20/mo (pay-as-you-go, $2.25/acu) · team $500/mo (250 acus included, $2/acu overage) · enterprise custom (vpc, sso, dedicated support). Consider which aligns with your budget and whether you need free tiers, seat-based plans, or bundled AI features.
- Who should choose cmux vs Devin?
- cmux fits teams that value Multi-Agent Workflows, while Devin suits those prioritizing Autonomous Agent. If you need category-specific guardrails, start with the tool that matches your daily workflows.
- Is cmux or Devin better overall?
- "Better" depends on your specific workflow. Review the head-to-head feature comparisons above to identify which tool aligns with your priorities — pricing, integrations, and AI capabilities all factor in.
- Does cmux have a free plan?
- Yes, cmux offers a free entry point: Free (Open Source). This makes it easy to trial before committing to a paid plan.
- Can I use Devin for free?
- Devin does not offer a free plan at this time. Pricing is Core $20/mo (pay-as-you-go, $2.25/ACU) · Team $500/mo (250 ACUs included, $2/ACU overage) · Enterprise custom (VPC, SSO, dedicated support). Look for a trial period or demo on their official website.
In summary, cmux vs Devin comes down to how you prioritize speed, AI assistance, and pricing flexibility. Scan the feature showdown and FAQs to match your workflow, then jump into the free trials to feel which experience delivers the best vibe.
Looking for more options?
Explore comprehensive alternative guides for both tools to find the perfect fit for your needs
Ready to make your choice?
Try both tools for free and discover which one fits your vibe coding workflow
cmux
cmux — Native macOS Terminal for AI Coding Agents