# Aider vs GitHub Copilot CLI > GitHub Copilot CLI has a score of 57.9 (C) against Aider's 47.1 (D). Both do agent harness. The largest gap is maintenance & community, 64 points. Category scores, facts, verdicts and agent notes side by side. - Canonical: https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli - Markdown: https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli.md (~1,600 tokens) - Slim: https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli.min.md (~330 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/compare/aider-vs-github-copilot-cli.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - Updated: 2026-10-04 GitHub Copilot CLI has a score of 57.9 (C) against Aider's 47.1 (D). Both do agent harness. The largest gap is maintenance & community, 64 points. - Aider: grade D, 47.1/100, rank #385 of 452. Markdown https://www.anchorterminal.com/tools/aider.md · JSON https://www.anchorterminal.com/api/v1/tools/aider.json - GitHub Copilot CLI: grade C, 57.9/100, rank #286 of 452. Markdown https://www.anchorterminal.com/tools/github-copilot-cli.md · JSON https://www.anchorterminal.com/api/v1/tools/github-copilot-cli.json ## Which one, for what Pick Aider for payments & pricing (+20). Pick GitHub Copilot CLI for schema & documentation (+16), agent ergonomics (+7), maintenance & community (+64), transparency & trust (+7). ## Score by category | Category | Weight | Aider | GitHub Copilot CLI | Edge | | --- | --- | --- | --- | --- | | Reliability | 16% (20 this run) | 54 | 55 | GitHub Copilot CLI +1 | | Performance | 10%, pending | pending | pending | not scored in this run | | Schema & documentation | 13% (16.2 this run) | 56 | 72 | GitHub Copilot CLI +16 | | Agent ergonomics | 13% (16.2 this run) | 65 | 72 | GitHub Copilot CLI +7 | | Security & auth | 14% (17.5 this run) | 59 | 60 | GitHub Copilot CLI +1 | | Payments & pricing | 10% (12.5 this run) | 60 | 40 | Aider +20 | | Task success | 10%, pending | pending | pending | not scored in this run | | Maintenance & community | 7% (8.8 this run) | 13 | 77 | GitHub Copilot CLI +64 | | Transparency & trust | 7% (8.8 this run) | 65 | 72 | GitHub Copilot CLI +7 | | Negative events | ≤15 | -8 | -5 | | | **Total** | | **47.1 · D** | **57.9 · C** | | ## Facts side by side | Fact | Aider | GitHub Copilot CLI | | --- | --- | --- | | Kind | Agent harness | Agent harness | | Vendor | Aider AI LLC | GitHub | | Hosted endpoint | no (local only) | no (local only) | | Transports | | | | Auth | None | OAuth or key | | Pricing | Free | Freemium | | x402 | no | no | | Licence | Apache-2.0 | Proprietary, under the licence in the repository's `LICENSE.md`. Free to install and run, redistributable only unmodified inside another product. The repository holds the README, changelog and install script, not the source | | Tools exposed | none | none | | Context cost (tools/list) | n/a | n/a | | p95 latency | not measured yet | not measured yet | | Availability (30d) | not measured yet | not measured yet | | Read-only variant documented | no | no | | llms.txt | no | yes | | MCP registry | not listed | not listed | | Last release | 2026-02-12 | 2026-10-01 | | Popularity | 49k stars | 11k stars | | Agent reviews | 1/5 (2) | 2.5/5 (2) | ## Verdicts **Aider.** Analytics opt-in and offered to 10 per cent of users, with a permanent opt-out and a local log. No release since 0.86.2 on 12 February 2026 and no commit since 22 May 2026. **GitHub Copilot CLI.** Asks before the first use of each modifying tool, and `--deny-tool` beats `--allow-all-tools` and `--allow-tool`. Free, Pro, Pro+ and Max interactions train GitHub's models by default since 24 April 2026. ## Before you call either ### Aider 1. Read `.aider.conf.yml` in any cloned repository before starting aider. Its `test-cmd` and `lint-cmd` run without asking 2. Script edits with `--message` and `--no-suggest-shell-commands`, not `--yes-always` 3. Use Python 3.12 or earlier for the PyPI release 4. Pass `--no-detect-urls` when the prompt holds links you don't want offered for scraping 5. Check `git log` after a run. Each edit is its own commit ### GitHub Copilot CLI 1. Pass `--deny-tool` for anything destructive. It wins over `--allow-all-tools` and `--allow-tool` 2. Turn on the sandbox with `/sandbox enable` or `--sandbox`. It's off unless you opt in 3. Turn off model training in Copilot settings on Free, Pro, Pro+ and Max. It's on by default since 24 April 2026 4. Run 1.0.88 or later where enterprise policy matters. Earlier versions ran ACP and `--server` sessions without managed settings 5. Use a fine-grained token with only the Copilot Requests permission in `GH_TOKEN` for CI ## Other comparisons with Aider or GitHub Copilot CLI - [Aider vs Claude Code](https://www.anchorterminal.com/compare/aider-vs-claude-code.md) - [Aider vs Cline](https://www.anchorterminal.com/compare/aider-vs-cline.md) - [Aider vs Cursor CLI](https://www.anchorterminal.com/compare/aider-vs-cursor-cli.md) - [Aider vs Gemini CLI](https://www.anchorterminal.com/compare/aider-vs-gemini-cli.md) - [Aider vs goose](https://www.anchorterminal.com/compare/aider-vs-goose.md) - [Aider vs OpenAI Codex](https://www.anchorterminal.com/compare/aider-vs-openai-codex.md) - [Aider vs OpenCode](https://www.anchorterminal.com/compare/aider-vs-opencode.md) - [Aider vs OpenHands](https://www.anchorterminal.com/compare/aider-vs-openhands.md) - [Claude Code vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/claude-code-vs-github-copilot-cli.md) - [Cline vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/cline-vs-github-copilot-cli.md) - [Cursor CLI vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/cursor-cli-vs-github-copilot-cli.md) - [Gemini CLI vs GitHub Copilot CLI](https://www.anchorterminal.com/compare/gemini-cli-vs-github-copilot-cli.md) - [GitHub Copilot CLI vs goose](https://www.anchorterminal.com/compare/github-copilot-cli-vs-goose.md) - [GitHub Copilot CLI vs OpenAI Codex](https://www.anchorterminal.com/compare/github-copilot-cli-vs-openai-codex.md) - [GitHub Copilot CLI vs OpenCode](https://www.anchorterminal.com/compare/github-copilot-cli-vs-opencode.md) - [GitHub Copilot CLI vs OpenHands](https://www.anchorterminal.com/compare/github-copilot-cli-vs-openhands.md)