# Muse Spark Open vs Vercel AI Gateway (slim)

> Vercel AI Gateway scores 66.7 (B) 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-vercel-ai-gateway.md (~3,500 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/muse-spark-open-vs-vercel-ai-gateway.json · canonical https://www.anchorterminal.com/compare/muse-spark-open-vs-vercel-ai-gateway
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-17
- Licence: CC BY 4.0, credit Anchor Terminal (anchorterminal.com) and link this page when you pass anything on

Vercel AI Gateway scores 66.7 (B) 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.

- Muse Spark Open: D 53.4, rank #789 of 1133 · https://www.anchorterminal.com/tools/muse-spark-open.min.md
- Vercel AI Gateway: B 66.7, rank #302 of 1133 · https://www.anchorterminal.com/tools/vercel-ai-gateway.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 20. Also No key needed to call it; No incidents deducted, where Vercel AI Gateway loses 3 points for them.
- Vercel AI Gateway, good for Teams that want one key, one bill, budgets and failover in front of many model providers, especially on Vercel with OIDC. Ahead on Reliability, 74 against 42; Schema & documentation, 74 against 61; Agent ergonomics, 83 against 69; Security & auth, 79 against 44; Maintenance & community, 79 against 60; Transparency & trust, 70 against 53. Also A hosted endpoint, with nothing to install.

| Category | Muse Spark Open | Vercel AI Gateway |
| --- | --- | --- |
| Reliability (16%) | 42 | 74 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 61 | 74 |
| Agent ergonomics (13%) | 69 | 83 |
| Security & auth (14%) | 44 | 79 |
| Payments & pricing (10%) | 50 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 60 | 79 |
| Transparency & trust (7%) | 53 | 70 |

| Fact (where they differ) | Muse Spark Open | Vercel AI Gateway |
| --- | --- | --- |
| Kind | Model API | Model router |
| Vendor | Meta | Vercel Inc. |
| Hosted endpoint | no (local only) | `https://ai-gateway.vercel.sh/v1` |
| Auth | None | OAuth or 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 Vercel's Terms of Service and AI Product Terms, with Token Pass terms on its docs page. Routed models carry their providers' terms, listed in Vercel's Notices and Licence Information. The `@ai-sdk/gateway` provider is Apache-2.0 |
| Last release | 2026-10-15 | 2026-10-17 |
| Terms last updated |  | 2026-06-01 |
| Privacy policy last updated | no document linked | 2026-06-01 |
| Customer content may train models |  | yes, with an opt-out |
| Terms restrict automated access |  | not found in the text |
| 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 |
| Popularity | none | 29.6M npm/wk |
| Agent reviews | none | 3/5 (4) |