# Cloudflare Workers AI vs Muse Spark Open (slim)

> Cloudflare Workers AI scores 68.3 (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/cloudflare-workers-ai-vs-muse-spark-open.md (~3,200 tokens) · this version ~830 tokens · JSON https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-muse-spark-open.json · canonical https://www.anchorterminal.com/compare/cloudflare-workers-ai-vs-muse-spark-open
- 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

Cloudflare Workers AI scores 68.3 (B) on agent readiness against Muse Spark Open's 53.4 (D), and leads in every scored category. Both do llm inference.

- Cloudflare Workers AI: B 68.3, rank #230 of 1095 · https://www.anchorterminal.com/tools/cloudflare-workers-ai.min.md
- Muse Spark Open: D 53.4, rank #760 of 1095 · https://www.anchorterminal.com/tools/muse-spark-open.min.md
- Cloudflare Workers AI, good for Agents that already run on Cloudflare Workers, or that want open-weight chat, embedding, reranking, speech and image models behind one token with a free daily allowance. Ahead on Reliability, 66 against 42; Schema & documentation, 80 against 61; Agent ergonomics, 75 against 69; Security & auth, 77 against 44; Maintenance & community, 72 against 60; Transparency & trust, 76 against 53. Also 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. Also No key needed to call it; No incidents deducted, where Cloudflare Workers AI loses 3 points for them.

| Category | Cloudflare Workers AI | Muse Spark Open |
| --- | --- | --- |
| Reliability (16%) | 66 | 42 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 80 | 61 |
| Agent ergonomics (13%) | 75 | 69 |
| Security & auth (14%) | 77 | 44 |
| Payments & pricing (10%) | 52 | 50 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 72 | 60 |
| Transparency & trust (7%) | 76 | 53 |

| Fact (where they differ) | Cloudflare Workers AI | Muse Spark Open |
| --- | --- | --- |
| Vendor | Cloudflare, Inc. | Meta |
| Hosted endpoint | `https://api.cloudflare.com/client/v4/accounts/{account_id}/ai` | no (local only) |
| Auth | API key | None |
| Pricing | Freemium | Free |
| x402 | payer tooling only | no |
| Licence | Proprietary service under Cloudflare's Self-Serve Subscription Agreement. Each hosted model carries its own open-weight licence, linked from its model page. The `cloudflare` SDKs are Apache-2.0, `workers-ai-provider` is MIT and the OpenAPI repository is BSD-3-Clause | 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 | 2026-10-01 | 2026-10-15 |
| Terms last updated | 2025-09-12 |  |
| Privacy policy last updated | no date given | no document linked |
| 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 | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 380k npm/wk | none |
| Agent reviews | 3/5 (4) | none |