Quick Verdict
Neither agent has public SWE-bench scores — real-world testing is your best bet.
Pricing
| pi.dev | GitHub Copilot CLI | |
|---|---|---|
| Price | Free (BYO keys) | $10-39/mo (Copilot subscription) |
| Open source | Yes ✅ | No ❌ |
| Best for | Long-running knowledge-backed agents | GitHub-native terminal agent with PR/issue integration |
Performance & Benchmarks
Benchmarks help, but without SWE-bench data for these two, we focus on real-world capability instead.
pi.dev is built for long-running knowledge-backed agents. It’s open source with Free (BYO keys) pricing.
GitHub Copilot CLI is built for github-native terminal agent with pr/issue integration. It’s a commercial product with $10-39/mo (Copilot subscription) pricing.
Feature Comparison
| Feature | pi.dev | GitHub Copilot CLI |
|---|
Pros & Cons
pi.dev
Pros:
- Persistent knowledge graphs
- Scheduled tasks
- Background agents
Cons:
- No git integration
- No plugin system
GitHub Copilot CLI
Pros:
- Deep GitHub integration
- Multi-model (Claude Sonnet 4.5, GPT-5)
- MCP server built-in
Cons:
- Requires Copilot subscription
- GitHub ecosystem dependent
Verdict
Neither agent has public SWE-bench scores — real-world testing is your best bet.
pi.dev is recommended for: Knowledge-intensive long-running agent tasks GitHub Copilot CLI is recommended for: Developers in GitHub ecosystem wanting terminal agent
For a full overview of all 15 agents, see the Complete Guide to AI Coding Agents.