# Muse Spark Open vs Prism Inference (slim)

> Prism Inference scores 60.1 (C) to Muse Spark Open's 53.4 (D) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/muse-spark-open-vs-prism-inference.md (~3,100 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/muse-spark-open-vs-prism-inference.json · canonical https://www.anchorterminal.com/compare/muse-spark-open-vs-prism-inference
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-15
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Prism Inference scores 60.1 (C) on agent readiness against Muse Spark Open's 53.4 (D), and leads in 4 of 7 scored categories. Muse Spark Open leads on payments & pricing and maintenance & community. Both do llm inference.

- Muse Spark Open: D 53.4, rank #760 of 1095 · https://www.anchorterminal.com/tools/muse-spark-open.min.md
- Prism Inference: C 60.1, rank #563 of 1095 · https://www.anchorterminal.com/tools/prism-inference.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 Payments & pricing, 50 against 30; Maintenance & community, 60 against 49. Also No key needed to call it.
- Prism Inference, good for Coding agents that want DeepSeek-V4.1-Flash at a low input price, with no retention, through whichever of the three wire formats the harness already speaks. Ahead on Reliability, 65 against 42; Schema & documentation, 82 against 61; Security & auth, 65 against 44; Transparency & trust, 61 against 53. Also A hosted endpoint, with nothing to install.

| Category | Muse Spark Open | Prism Inference |
| --- | --- | --- |
| Reliability (16%) | 42 | 65 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 61 | 82 |
| Agent ergonomics (13%) | 69 | 68 |
| Security & auth (14%) | 44 | 65 |
| Payments & pricing (10%) | 50 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 60 | 49 |
| Transparency & trust (7%) | 53 | 61 |

| Fact (where they differ) | Muse Spark Open | Prism Inference |
| --- | --- | --- |
| Vendor | Meta | Prism Technologies Inc |
| Hosted endpoint | no (local only) | `https://api.prisminference.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 | Proprietary service under Prism's terms of service. The OpenAPI file declares `LicenseRef-Proprietary`. The Hermes provider plugin repository carries no licence file |
| Last release | 2026-10-15 | 2026-10-06 |
| Terms last updated |  | 2026-09-09 |
| Privacy policy last updated | no document linked | 2026-09-09 |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |