# Aider vs Muse Code (slim)

> Muse Code scores 61.3 (C) to Aider's 46.9 (D) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/aider-vs-muse-code.md (~2,600 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/aider-vs-muse-code.json · canonical https://www.anchorterminal.com/compare/aider-vs-muse-code
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-12

Muse Code scores 61.3 (C) on agent readiness against Aider's 46.9 (D), and leads in 4 of 7 scored categories. Aider leads on reliability, payments & pricing and transparency & trust. Both do agent harnesses.

- Aider: D 46.9, rank #862 of 993 · https://www.anchorterminal.com/tools/aider.min.md
- Muse Code: C 61.3, rank #487 of 993 · https://www.anchorterminal.com/tools/muse-code.min.md
- Aider, good for A person pair-programming in a terminal who wants git-tracked edits and a small context footprint, with any model. Ahead on Reliability, 54 against 45; Payments & pricing, 60 against 20; Transparency & trust, 63 against 57. Also No key needed to call it; Free to start without a card; Open source.
- Muse Code, good for Developers who want Meta's Muse models, Muse Wonder Full included, in a terminal or CI agent with the sandbox and approvals on from the first run. Ahead on Schema & documentation, 84 against 56; Agent ergonomics, 79 against 65; Security & auth, 67 against 59; Maintenance & community, 75 against 13. Also No incidents deducted, where Aider loses 8 points for them.

| Category | Aider | Muse Code |
| --- | --- | --- |
| Reliability (16%) | 54 | 45 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 56 | 84 |
| Agent ergonomics (13%) | 65 | 79 |
| Security & auth (14%) | 59 | 67 |
| Payments & pricing (10%) | 60 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 13 | 75 |
| Transparency & trust (7%) | 63 | 57 |

| Fact (where they differ) | Aider | Muse Code |
| --- | --- | --- |
| Vendor | Aider AI LLC | Meta |
| Auth | None | OAuth or key |
| Pricing | Free | Paid |
| Licence | Apache-2.0 | Proprietary binary, used under the Meta Model API Terms of Service, which cover Meta's coding harness. Subscriptions are also under the Meta Subscription Terms of Service. The TypeScript and Python SDKs in the linked repository are MIT. |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| Last release | 2026-02-12 | 2026-10-11 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no date given | couldn't be read |
| Popularity | 49k stars | 63k npm/wk |
| Agent reviews | 1/5 (2) | none |