AI Coding Agents Comparison: 4 Architectures, 10 Tools, I Picked the 3 Best for Indie Developers
Recently, AI coding tools have been getting intense.
Cursor got a $50B valuation, Claude Code topped SWE-bench, GitHub Copilot released an Agent mode. But honestly, looking at reviews, most stop at “who’s stronger” without discussing “who fits you better.”
I’m an indie developer who has deeply used over a dozen AI coding tools in the past year. I took 10 mainstream tools for a comparative review to answer one question: as an indie developer, which should I choose?
Four Architectures Determine Tool Personality
AI coding agents now have four main architectures:
1. IDE-Embedded (Cursor, Windsurf, Zed)
Characteristics: Integrated in editor, real-time completion, real-time conversation.
Suitable for: Scenarios requiring frequent code writing and modification.
Pros: Fast response, good context understanding, no window switching.
Cons: Capabilities limited to single files, struggles with cross-file tasks.
2. Command-Line Agent (Claude Code, Codex CLI)
Characteristics: Runs in terminal, autonomously completes complex tasks.
Suitable for: Automation scripts, project initialization, batch modifications.
Pros: Large capability boundary, can call shell commands, not limited by IDE.
Cons: High learning curve, inconvenient debugging.
3. Cloud Service (Devin, OpenHands Cloud)
Characteristics: Runs in cloud, asynchronously completes tasks.
Suitable for: Large-scale refactoring, long-running tasks, team collaboration.
Pros: Doesn’t use local resources, supports parallel tasks, has history.
Cons: High latency, network dependent, data privacy concerns.
4. VSCode Plugin (Cline, Continue)
Characteristics: Plugin form, lightweight Agent capabilities.
Suitable for: Light automation, single-file optimization, quick prototypes.
Pros: Easy installation, free or low-cost, VSCode ecosystem.
Cons: Limited capabilities, obvious performance bottlenecks.
10 Tools, One Month of Real Experience
Cursor: Strongest Ecosystem, But Getting ‘Heavy’
Used for over a year, Cursor’s completion speed and accuracy are indeed strong. But recent versions feel like it’s moving toward an “all-in-one” package—integrated debugger, integrated terminal, integrated test framework.
The benefit is more features; the downside is slower startup and higher memory usage. My MacBook Pro 16G, opening Cursor eats 8G of memory.
Suitable for: Full-time developers, heavy IDE users, those willing to pay for efficiency.
Claude Code: Most Capable, But Highest Barrier
That 80.8% SWE-bench score isn’t hype. Claude Code’s ability to handle complex tasks is genuinely a tier above other tools.
But the catch—you need to know how to use it. It’s not a “install and use” tool. You need to understand its context management mechanism, learn to write good instructions, know when to intervene and when to let go.
Suitable for: Experienced developers, those handling complex tasks, willing to spend time learning.
Devin: Smartest, But Most Expensive
Devin’s autonomy is genuinely strong. Give it a task, and it searches materials, writes code, tests, fixes bugs autonomously. Almost no manual intervention needed.
But the price is also really expensive. Personal version $500/month, enterprise even more. For indie developers, this cost is hard to justify.
Suitable for: Enterprise teams, well-funded, needing long-term asynchronous tasks.
Cline: Best Value King
VSCode plugin, free or low-cost (depending on model used), capabilities exceed expectations.
I tried having it refactor a 2000-line file. Though it got stuck a few times, it ultimately completed it. For a free tool, this performance is already surprising.
Suitable for: Budget-limited, light users, VSCode power users.
My Choice: Three-Tool Combo
After a month of testing, I ultimately chose a “three-tool” combination:
- Daily coding: Cursor (fast completion, real-time conversation)
- Complex tasks: Claude Code (refactoring, cross-file modifications, automation scripts)
- Quick prototypes: Cline (lightweight tasks, when I don’t want to open Cursor)
Why three? Because I found no single tool covers all scenarios. Tools aren’t about “who replaces who,” but “who works better in which scenario.”
One Suggestion
If you’re choosing AI coding tools, my advice—first clarify your scenarios, then choose tools, not the other way around.
- Need real-time completion, frequent code changes → Cursor
- Need complex task handling, willing to learn → Claude Code
- Need automation scripts, batch operations → Codex CLI
- Budget-limited, light usage → Cline
Tools themselves aren’t good or bad, only suitable or not. Choose right, efficiency doubles; choose wrong, only adds cognitive burden.