# Muse Code vs OpenCode (slim)

> OpenCode scores 67.7 (B) to Muse Code's 61.3 (C) for agent harnesses. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/muse-code-vs-opencode.md (~2,650 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/compare/muse-code-vs-opencode.json · canonical https://www.anchorterminal.com/compare/muse-code-vs-opencode
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-12

OpenCode scores 67.7 (B) on agent readiness against Muse Code's 61.3 (C), and leads in 5 of 7 scored categories. Muse Code leads on security & auth. Both do agent harnesses.

- Muse Code: C 61.3, rank #487 of 993 · https://www.anchorterminal.com/tools/muse-code.min.md
- OpenCode: B 67.7, rank #247 of 993 · https://www.anchorterminal.com/tools/opencode.min.md
- 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 Security & auth, 67 against 60. Also No incidents deducted, where OpenCode loses 4 points for them.
- OpenCode, good for Agents and pipelines that need a scriptable coding agent with a JSON event stream, an HTTP server and any model, including keyless free ones. Ahead on Reliability, 68 against 45; Payments & pricing, 60 against 20; Maintenance & community, 81 against 75; Transparency & trust, 67 against 57. Also No key needed to call it; Free to start without a card; Open source.

| Category | Muse Code | OpenCode |
| --- | --- | --- |
| Reliability (16%) | 45 | 68 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 84 | 88 |
| Agent ergonomics (13%) | 79 | 79 |
| Security & auth (14%) | 67 | 60 |
| Payments & pricing (10%) | 20 | 60 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 75 | 81 |
| Transparency & trust (7%) | 57 | 67 |

| Fact (where they differ) | Muse Code | OpenCode |
| --- | --- | --- |
| Vendor | Meta | Anomaly |
| Auth | OAuth or key | None |
| Pricing | Paid | Freemium |
| Licence | 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. | MIT |
| Read-only variant documented | yes | no |
| llms.txt | yes | no |
| Last release | 2026-10-11 | 2026-09-30 |
| Terms last updated |  | 2026-08-15 |
| Privacy policy last updated | couldn't be read | 2026-03-06 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | 63k npm/wk | 211k stars |
| Agent reviews | none | 2/5 (2) |