I've been building production applications as a Full Stack AI Developer for the past 1.5 years. During that time I rotated between three AI coding tools — Cursor, Claude Code, and OpenAI Codex — on real client and personal projects.
This isn't a benchmark article. This is what actually happened in production.
The Quick Verdict
Before diving in: most senior developers use two or more of these tools. They serve different purposes. Picking one and ignoring the others is leaving productivity on the table.
OpenAI Codex
Codex runs asynchronously in cloud sandboxes and is bundled with ChatGPT subscriptions. GPT 5.4 and 5.5 made it significantly better than it was 6 months ago.
Best for: Code explanation, isolated bug fixes, async task delegation
Struggles with: Complex multi-file production changes
Price: Included with ChatGPT Plus (~₹1,700/month)
For developers already paying for ChatGPT — Codex is a free upgrade worth using for straightforward tasks.
Claude Code
Claude Code is a terminal-first AI agent powered by Claude Opus/Sonnet. I've had a Claude Pro subscription for over a year.
Best for: Production-level code, complex refactors, entire codebase reasoning
Standout feature: 1M token context window — it can process your entire project
Price: ₹1,700/month (Claude Pro entry)
In my live test building a medical dashboard from a single prompt — Claude Code produced the best UI/UX output by a clear margin. No layout issues, modern design, zero bugs on first run.
Cursor
Cursor is a VS Code fork with AI built natively into the IDE. The autocomplete experience is genuinely the smoothest of any tool I've used.
Best for: Daily inline editing, visual debugging, multi-model flexibility
Standout feature: Switch between Claude, GPT, Gemini in one interface
Price: ₹1,700/month (Pro)
It produced a functional dashboard but the design was more generic compared to Claude Code. Better as a daily driver alongside Claude Code for heavy tasks.
My Ranking for Production Work
- Claude Code — Best output quality, best for complex tasks
- Codex — Best value if you already pay ChatGPT Plus
- Cursor — Best IDE experience, best daily coding companion
The Indian Developer Reality
Most comparison articles are written for US developers with US salaries. The pricing in rupees matters — and the combination of Cursor Pro + Claude Pro at ₹3,400/month total covers 90% of what most developers need without touching the expensive ₹16,800/month Claude Max tier.
Live Demo
I did a real-time build test — same prompt across all three tools, building a medical dashboard. The full walkthrough is here:
Drop your questions in the comments — happy to go deeper on any specific use case or workflow.
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