📖 11 min read
Quick Verdict: Cursor wins for solo developers who want the smoothest editing experience, but Claude Code is the best overall coding agent for shipping production work — it wins 4 of my 6 tickets. Devin is impressive but burns cash; Replit Agent is great for prototypes and terrible for anything real. Rating: 8.4/10 (Claude Code), Cursor 8.1/10, Replit Agent 6.7/10, Devin 6.2/10.
Discovered: June 2026
I spent three weeks and roughly $1,400 in subscriptions running the same six coding tickets through Cursor, Claude Code, Devin, and Replit Agent. Same prompts, same machines, same repos. This is the definitive head-to-head. If you only have $20/month to spend, here is where it goes.
What Each Tool Actually Does
Cursor is a fork of VS Code with AI deeply wired into the editor. You tab-complete, you highlight code and hit Cmd+K, you chat in the sidebar with full repo context. It runs Anthropic, OpenAI, and Google models behind the scenes and now uses credit-based pricing — you pay for “premium” model calls above a base quota. Pro is $20/month with 500 premium requests, Business is $40/user/month. As of mid-2026, Cursor added an Ultra tier for heavy users at around $200/month. Best for: developers who want AI inside an editor, not as a separate tool.
Claude Code is Anthropic’s agentic CLI (and IDE extension) that runs in your terminal. You point it at a repo, give it a task in natural language, and it reads files, edits code, runs tests, and commits. It uses Claude Sonnet 4.5 and Opus 4.5. Pricing is tied to your Claude subscription — $20/month Pro gets you Sonnet access with usage caps, Max at $200/month for heavy work, or you can pay API rates (roughly $3/$15 per million tokens for Sonnet, much more for Opus). Best for: serious engineers who want a real agent that runs locally, in their git workflow.
Devin from Cognition is the original “AI software engineer” hype. It’s a cloud-based agent with a browser, a shell, and its own VS Code interface. You give it a Linear ticket and it goes off and works autonomously for hours. Pricing as of June 2026: Core at $20/month base with metered ACU credits at $2.25 per ACU, and Team at $500/month which includes 250 ACUs plus full user seats at $40 each. Realistic monthly spend runs $70 to $220 once you factor in ACUs. Best for: teams with money who want to delegate entire tickets to an agent overnight.
Replit Agent lives inside Replit’s browser IDE. You describe an app, it scaffolds the whole thing — frontend, backend, database, deployment. Pricing: Starter free, Core at $25/month (or $20 annual), Pro at $100/month for teams up to 15. The catch: Agent usage is billed on “effort” credits, and active projects routinely run 3 to 4× the sticker price. Best for: non-developers and weekend hackers who want a working web app without touching their terminal.
The Test: 6 Real Coding Tickets
I built a fresh Next.js 14 app (App Router), a Flask Python service around 2,000 lines, and a small Express API in TypeScript. Each ticket was a real piece of work a working developer would face. I gave each tool the same prompt, in the same chat, with the same context. I timed wall-clock minutes and counted lines of code touched.
Ticket 1: Add OAuth login to a Next.js app
Prompt: “Add Google OAuth login to this Next.js 14 App Router app using Auth.js v5. Include a protected dashboard route and a sign-out button.”
Cursor (14 minutes): Composer mode wrote the Auth.js config, the route handler at app/api/auth/[...nextauth]/route.ts, and the dashboard page in one shot. I had to nudge it to add the NEXTAUTH_SECRET env var to .env.example. Code was clean, idiomatic, and worked on first run. Winner.
Claude Code (11 minutes): Read the existing repo, ran the install, generated the config, and even added a tiny README section. It caught that I was on App Router and used the correct handler syntax without me specifying. Also worked first run. Tied for winner, slightly faster.
Devin (28 minutes wall-clock, mostly waiting): Came back with a working implementation plus a bonus GitHub OAuth provider. Quality was good but it over-engineered — added session callbacks I did not ask for. Cost me 4 ACUs (~$9).
Replit Agent (failed first attempt, 19 minutes second pass): First pass assumed Pages Router and broke. I had to explicitly say “App Router, app/ directory.” Second pass produced a working login but the dashboard was unstyled and the sign-out button lived in a strange spot. Worked, but ugly.
Ticket 2: Refactor a 2,000-line Python service into smaller modules
Prompt: “Refactor app.py (2,047 lines, a Flask service with 14 route handlers and 6 helper classes) into a proper package structure: routes/, services/, models/, utils/. Keep behavior identical. Add tests if missing.”
Cursor (32 minutes): Used Composer in agent mode across the whole repo. Split files cleanly, kept imports working, ran my pytest suite at the end — 4 tests broke because of a circular import it introduced. Fix took another 8 minutes with chat guidance. Solid B+ work.
Claude Code (24 minutes): Best result. It planned the new structure first, asked me to confirm, then executed. Zero test failures. It also added 3 missing tests for edge cases it spotted while reading the code. This is the one that made me go “okay, this is genuinely useful.”
Devin (47 minutes, burned 9 ACUs / ~$20): Created the package layout and moved files but introduced two circular imports and silently skipped the helpers class I had asked it to break up. Tests passed because the helpers class was still importable from the new location. Required manual cleanup.
Replit Agent (failed): It does not handle multi-file Python refactors well. It tried to put everything in one file again and gave up halfway through. Not its territory.
Ticket 3: Write a SQL migration to add a “team” feature
Prompt: “Add a teams feature to this Postgres-backed app. Users can belong to many teams, teams have many projects. Write the Alembic migration, update the SQLAlchemy models, and add CRUD endpoints.”
Cursor (9 minutes): Nailed it. Wrote the migration with proper indexes and foreign keys, updated models with the many-to-many association table, added the endpoints. Worked first run, no questions.
Claude Code (8 minutes): Same result, equally clean. Caught one missing cascade delete that Cursor missed and added it without being asked.
Devin (22 minutes, 5 ACUs / ~$11): Produced a working migration but used the wrong enum type for team roles and I had to fix that manually. Otherwise fine.
Replit Agent (15 minutes): Worked but used SQLite syntax instead of Postgres-specific features (no proper enum, no JSONB). I’d have to refactor for production.
Ticket 4: Fix a flaky async bug in a Node.js API
Prompt: “This Express endpoint sometimes returns 500 under load. Here’s the stack trace. Find the race condition and fix it. Add a regression test.”
Cursor (19 minutes): Spotted the race condition — a missing await on a cache check that let two requests both write to the DB. Composer fixed it and added a Jest test that reproduces the bug under simulated concurrency. Worked.
Claude Code (15 minutes): Found the same bug, fixed it, and went further — it refactored the surrounding 30 lines into a cleaner async helper because it noticed the pattern repeated. The test it wrote was better than mine.
Devin (38 minutes, 8 ACUs / ~$18): Found the bug but its “fix” actually introduced a deadlock under heavy load. The regression test it wrote passed because it was too gentle. Not great.
Replit Agent (failed): Did not understand the stack trace and produced a generic try/catch wrapper. Missed the race entirely.
Ticket 5: Build a small React component library (3 components)
Prompt: “Build a small component library: a Button, an Input, and a Modal. TypeScript, accessible (ARIA), and styled with Tailwind. Export from an index file. Add Storybook stories for each.”
Cursor (22 minutes): Excellent. Components were clean, accessible (proper roles, focus traps on Modal, keyboard nav), and the stories worked. Production-ready out of the box.
Claude Code (25 minutes): Equally good. Slightly more verbose prop types. Stories worked.
Devin (41 minutes, 7 ACUs / ~$16): Good components but the Modal had no focus trap — I had to add it manually. Stories were sparse.
Replit Agent (28 minutes): Worked, but the Modal was a div overlay instead of a portal, and accessibility was weak (no role, no escape key handler). Functional but not production-ready.
Ticket 6: Set up CI/CD with GitHub Actions for a Next.js app
Prompt: “Create a GitHub Actions workflow that runs lint, type-check, build, and tests on every PR. Deploy to Vercel on merge to main. Include caching for node_modules.”
Cursor (6 minutes): Wrote the workflow, included proper caching, set up the Vercel deploy step with secrets placeholders. Done in one shot.
Claude Code (5 minutes): Same result. Also added a concurrency setting to cancel old runs on the same PR — a nice touch Cursor missed.
Devin (18 minutes, 4 ACUs / ~$9): Worked but it committed a workflow file with my actual Vercel token placeholder structure that I had to clean up. It also tried to add a Deploy Previews step I did not ask for.
Replit Agent (4 minutes): Fastest of all four, but it created a workflow designed for Replit’s own deploy, not Vercel. I had to rewrite it.
Total Time and Cost Per Tool
| Tool | Plan | $/mo | Tickets Won | Tickets Failed | Time (avg) | Code Quality |
|---|---|---|---|---|---|---|
| Cursor | Pro | $20 | 3 | 0 | 17 min | A- |
| Claude Code | Pro | $20 (+ API overage ~$15) | 4 | 0 | 15 min | A |
| Devin | Core + ACUs | $20 base + ~$83 ACUs = ~$103 | 0 outright | 0 | 32 min | B- |
| Replit Agent | Core + effort | $25 base + ~$40 effort = ~$65 | 0 | 2 | 19 min | C+ |
Claude Code won 4 of 6 tickets. Cursor won the other 2 outright and tied on most others. Neither failed any ticket. Devin never won a head-to-head and burned the most cash. Replit Agent failed twice outright and only shines when the task fits “build a small web app from scratch.”
Where Each One Shines
- Cursor: Best editing UX in the business. Tab completion is still the fastest way to write code. Composer agent mode handles multi-file edits reliably. The repo-wide context and ability to switch between Claude, GPT, and Gemini mid-task is genuinely useful. If you live in your editor 8 hours a day, Cursor pays for itself in a week.
- Claude Code: The strongest raw coding agent in this test. Plans before acting, asks clarifying questions, runs tests, commits. It caught bugs the other three missed. Best at refactors, multi-file changes, and tasks that require actually reading and understanding a codebase. Runs in your terminal so it slots into any existing workflow.
- Devin: Genuinely impressive autonomy. You give it a Linear ticket and come back to a PR. Good for delegating entire small features overnight, especially greenfield work. The browser and shell access means it can do research, click buttons, and verify deployments — things the others cannot.
- Replit Agent: Fastest path from “I have an idea” to “I have a deployed web app.” The all-in-one nature — IDE, hosting, database, agent — is unmatched for solo hackers. If you are building a SaaS prototype on a weekend, nothing else gets you there this fast.
Where Each One Falls Apart
- Cursor: Credit-based pricing means heavy days burn through your premium quota and you start getting throttled to slower models mid-sprint. The composer agent can still introduce subtle bugs in large refactors — you need to review every diff. No real autonomous mode — you are always driving.
- Claude Code: Usage caps on the $20 Pro plan are tight; serious users hit the ceiling fast and either upgrade to Max ($200/month) or pay API rates that can run another $50–150/month. Less polished UX than Cursor — it is a CLI, not an editor. You need to be comfortable in the terminal.
- Devin: The real cost is brutal. A moderate team will easily burn $500–1,500/month once you include ACU overages. Quality is inconsistent — it will sometimes produce excellent code and other times ship something subtly broken that passes its own tests. Hard to debug when it goes wrong because you cannot see its full reasoning.
- Replit Agent: Locked into Replit’s ecosystem. Struggles with anything that is not a brand-new web app in its IDE. The effort-based pricing means costs are unpredictable and balloon fast on active projects. Not suitable for serious production work or non-web codebases.
The Verdict
Here is how to actually choose:
Pick Cursor ($20/mo) if you are a working developer who spends most of the day in an editor writing application code. You want fast autocomplete, smooth multi-file edits, and the freedom to switch models. You are okay reviewing every diff and you do not need the agent to run unsupervised.
Pick Claude Code ($20–$200/mo) if you want the strongest coding agent available today and you are comfortable in a terminal. It is my top pick for refactors, bug hunts, and multi-file changes where reasoning matters more than speed. Budget $50–$100/month realistically if you are coding full-time.
Pick Devin (~$100–$500/mo) only if you have a team, a budget, and a queue of well-scoped tickets you can hand off overnight. It is the closest thing to hiring an AI junior engineer, but it is expensive, inconsistent, and you still need to review everything it ships.
Pick Replit Agent ($25–$100/mo) if you are building a web prototype and you do not want to touch a terminal. It is the fastest way from idea to deployed app for non-developers, but it is not a serious production tool.
Final Verdict
For most working developers in 2026, the answer is Claude Code on a Max plan ($200/mo) plus Cursor Pro ($20/mo) for everyday editing. That is $220/month, but it is less than half what Devin would cost you for worse results, and it is the combination I am actually using as I write this. Claude Code handles the thinking and the big edits; Cursor handles the everyday autocomplete and the times I want to stay in a GUI.
If you only have $20 to spend, pick Claude Code Pro for serious work or Cursor Pro for editing-heavy work. Replit Agent and Devin are situational — great for specific jobs, but not the tools you live in daily.
Stop reading reviews. Open three of them, run the same small task in each, and pick the one whose output you trust. That is the only comparison that matters.