TL;DR: GitHub Copilot ($10/mo) is the best value for inline completions. Augment Code wins on speed and context retention for large codebases. Devin AI ($500/mo) is the only fully autonomous coder — assign a task and walk away.
Feature Comparison
| Feature | Devin AI | GitHub Copilot | Augment Code |
|---|---|---|---|
| Price | $500/mo | $10/mo | Freemium |
| Autonomy | Fully autonomous | Assisted (inline) | Assisted (inline) |
| Task Assignment | Slack / web interface | In-editor only | In-editor only |
| Code Generation | Full features/PRs | Line/block completions | Line/block completions |
| Testing | Writes and runs tests | Suggests tests | Suggests tests |
| Speed | Slow (minutes-hours) | Fast (real-time) | Fastest (real-time) |
| Context | Full codebase | Current file + neighbors | Full codebase (best retention) |
| Best For | Teams with task backlog | Individual developers | Large codebase devs |
When to Use Each
- Devin: Well-defined tasks you'd assign to a junior developer (bug fixes, migrations, routine features)
- Copilot: Day-to-day coding assistance, autocomplete, quick suggestions
- Augment: When working on large codebases where context retention and speed matter most
Cost Analysis
| Scenario | Devin | Copilot | Augment |
|---|---|---|---|
| Solo developer | Overkill ($500/mo) | Best value ($10/mo) | Good (free tier) |
| Small team (5 devs) | Worth testing | $50/mo total | Depends on plan |
| Enterprise (50+ devs) | ROI if it saves 1 hire | $950/mo ($19/user) | Custom pricing |
Frequently Asked Questions
Can Devin replace a developer?
No. Devin handles well-defined, routine tasks. Complex architecture, creative problem-solving, and ambiguous requirements still need human engineers.
Is Augment Code faster than Copilot?
Yes. Augment Code is specifically optimized for response speed and maintains context across sessions better than Copilot.
Final Verdict
Best Value: GitHub Copilot ($10/mo)
Best Speed: Augment Code
Most Autonomous: Devin AI ($500/mo)
Best for Solo Devs: GitHub Copilot
