# Muse Spark Open vs Router.com (Ramp Router) (slim)

> Router.com scores 54.5 (C) to Muse Spark Open's 53.5 (D) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/muse-spark-open-vs-ramp-router.md (~3,700 tokens) · this version ~680 tokens · JSON https://www.anchorterminal.com/compare/muse-spark-open-vs-ramp-router.json · canonical https://www.anchorterminal.com/compare/muse-spark-open-vs-ramp-router
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-28
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Router.com (Ramp Router) scores 54.5 (C) on agent readiness against Muse Spark Open's 53.5 (D), and leads in 3 of 7 scored categories. Muse Spark Open leads on reliability and payments & pricing. Both do llm inference.

- Muse Spark Open: D 53.5, rank #823 of 1218 · https://www.anchorterminal.com/tools/muse-spark-open.min.md
- Router.com (Ramp Router): C 54.5, rank #798 of 1218 · https://www.anchorterminal.com/tools/ramp-router.min.md
- Muse Spark Open, good for A team with a four-GPU Blackwell node, or two to four Mac Studios, that wants a 1M-token multimodal coding and agent model on its own hardware with no prompts leaving it. Ahead on Reliability, 42 against 25; Payments & pricing, 50 against 40. Also No key needed to call it.
- Router.com (Ramp Router), good for Teams in the US that want one key for OpenAI, Anthropic, xAI and open-weight models, with routing to cheaper tiers and per-request cost, and can switch off content recording. Ahead on Agent ergonomics, 77 against 69; Security & auth, 66 against 44; Transparency & trust, 67 against 54. Also A hosted endpoint, with nothing to install.

| Category | Muse Spark Open | Router.com (Ramp Router) |
| --- | --- | --- |
| Reliability (16%) | 42 | 25 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 61 | 58 |
| Agent ergonomics (13%) | 69 | 77 |
| Security & auth (14%) | 44 | 66 |
| Payments & pricing (10%) | 50 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 60 | 59 |
| Transparency & trust (7%) | 54 | 67 |

| Fact (where they differ) | Muse Spark Open | Router.com (Ramp Router) |
| --- | --- | --- |
| Kind | Model API | Model router |
| Vendor | Meta | Ramp |
| Hosted endpoint | no (local only) | `https://api.router.com/v1` |
| Auth | None | API key |
| Pricing | Free | Pay per use |
| Licence | Muse Model Licence (source-available weights, not an OSI licence), free of charge with an attribution notice, a separate agreement with Meta before Model as a Service by a licensee group above $20M gross revenue, and the Muse Spark Open Usage Policy | Closed service under the Router Terms of Service (last updated 31 August 2026). The Ramp CLI that configures coding agents for Router is MIT. |
| Last release | 2026-10-15 | 2026-10-27 |
| Privacy policy last updated | no document linked |  |
| Popularity | none | 1.7k npm/wk |