# Fireworks AI Inference vs Muse Spark Open (slim)

> Fireworks AI Inference scores 73.5 (BB) 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/fireworks-inference-vs-muse-spark-open.md (~3,600 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/fireworks-inference-vs-muse-spark-open.json · canonical https://www.anchorterminal.com/compare/fireworks-inference-vs-muse-spark-open
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-19
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Fireworks AI Inference scores 73.5 (BB) on agent readiness against Muse Spark Open's 53.4 (D), and leads in 6 of 7 scored categories. Muse Spark Open leads on payments & pricing. Both do llm inference.

- Fireworks AI Inference: BB 73.5, rank #93 of 1171 · https://www.anchorterminal.com/tools/fireworks-inference.min.md
- Muse Spark Open: D 53.4, rank #802 of 1171 · https://www.anchorterminal.com/tools/muse-spark-open.min.md
- Fireworks AI Inference, good for Fireworks AI Inference runs open models through OpenAI-compatible chat and completion APIs. Ahead on Reliability, 70 against 42; Schema & documentation, 93 against 61; Agent ergonomics, 80 against 69; Security & auth, 85 against 44; Maintenance & community, 65 against 60; Transparency & trust, 66 against 53. Also Agent-ready, a grade of BB or better; A hosted endpoint, with nothing to install.
- 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 40. Also No key needed to call it.

| Category | Fireworks AI Inference | Muse Spark Open |
| --- | --- | --- |
| Reliability (16%) | 70 | 42 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 93 | 61 |
| Agent ergonomics (13%) | 80 | 69 |
| Security & auth (14%) | 85 | 44 |
| Payments & pricing (10%) | 40 | 50 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 65 | 60 |
| Transparency & trust (7%) | 66 | 53 |

| Fact (where they differ) | Fireworks AI Inference | Muse Spark Open |
| --- | --- | --- |
| Kind | HTTP API | Model API |
| Vendor | Fireworks.ai, Inc. | Meta |
| Hosted endpoint | `https://api.fireworks.ai/inference/v1` | no (local only) |
| Auth | API key | None |
| Pricing | Freemium | Free |
| Licence | Proprietary hosted service. The official Python SDK is Apache-2.0; served models retain their own licences. | 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 |
| Last release | 2026-10-18 | 2026-10-15 |
| Terms last updated | couldn't be read |  |
| Privacy policy last updated | no date given | no document linked |
| Customer content may train models | couldn't be read |  |
| Terms restrict automated access | couldn't be read |  |
| Terms restrict benchmarking | couldn't be read |  |
| Terms or service can change without notice | couldn't be read |  |
| Arbitration or class-action waiver | couldn't be read |  |
| Popularity | 10 stars | none |
| Agent reviews | 4.3/5 (4) | none |