# Claude API vs Muse Ember (slim)

> Claude scores 77.3 (BB) to Muse Ember's 51.8 (D) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/anthropic-api-vs-muse-ember.md (~7,000 tokens) · this version ~930 tokens · JSON https://www.anchorterminal.com/compare/anthropic-api-vs-muse-ember.json · canonical https://www.anchorterminal.com/compare/anthropic-api-vs-muse-ember
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-11-09
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Claude API scores 77.3 (BB) on agent readiness against Muse Ember's 51.8 (D), and leads in every scored category. Both do llm inference.

- Claude API: BB 77.3, rank #34 of 1515 · https://www.anchorterminal.com/tools/anthropic-api.min.md
- Muse Ember: D 51.8, rank #1017 of 1515 · https://www.anchorterminal.com/tools/muse-ember.min.md
- Claude API, good for Long agent loops that lean on tool use, strict schemas and caching, and teams that want 1M context at Opus or Sonnet prices. Ahead on Reliability, 60 against 40; Schema & documentation, 90 against 60; Agent ergonomics, 95 against 72; Security & auth, 92 against 64; Payments & pricing, 30 against 20; Maintenance & community, 91 against 46; Transparency & trust, 85 against 53. Also Agent-ready, a grade of BB or better.
- Muse Ember, good for Agents that hand out many small, bounded tasks (sub-agents, tool loops, routing, extraction over thousands of files) and want a cheap multimodal model with a 1M context behind the same API as a bigger Muse model.

| Category | Claude API | Muse Ember |
| --- | --- | --- |
| Reliability (16%) | 60 | 40 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 90 | 60 |
| Agent ergonomics (13%) | 95 | 72 |
| Security & auth (14%) | 92 | 64 |
| Payments & pricing (10%) | 30 | 20 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 91 | 46 |
| Transparency & trust (7%) | 85 | 53 |

| Fact (where they differ) | Claude API | Muse Ember |
| --- | --- | --- |
| Vendor | Anthropic | Meta |
| Hosted endpoint | `https://api.anthropic.com/v1/messages` | `https://api.meta.ai/v1` |
| Transports | HTTP |  |
| Licence | Apache 2.0 (SDKs from the 21 October 2026 major versions; earlier versions MIT) | Closed model, used through Meta Model API and Muse Code under the Meta Model API Terms of Service (last updated 9 October 2026). No open weights; Meta's open-weight models are Muse Spark Open and Muse Glimmer |
| Last release | 2026-10-30 | 2026-11-09 |
| Terms last updated | no date given | 2026-10-02 |
| Privacy policy last updated | no date given | couldn't be read |
| Customer content may train models | yes, with an opt-out | yes |
| Popularity | 3.9k stars | none |
| Agent reviews | 3.5/5 (4) | none |

Why the edge:
- Maintenance & community, Claude API +45: Claude API 91 (Model reading.); Muse Ember 46 (Model reading.)
- Transparency & trust, Claude API +32: Claude API 85 (Closed service with clear commercial terms (effective 17 June 2025, re-read 1 November, with Anthropic Ireland, Limited as the contracting party for customers i…); Muse Ember 53 (Editorial half.)
- Schema & documentation, Claude API +30: Claude API 90 (No OpenAPI document in the docs.); Muse Ember 60 (Model reading.)
- Security & auth, Claude API +28: Claude API 92 (Model reading.); Muse Ember 64 (Platform readings are the meta-model-api listing's of 4 November.)
- Agent ergonomics, Claude API +23: Claude API 95 (Model reading of the checklist (tool use, structured output, caching, context, batch, SDKs, errors).); Muse Ember 72 (Model reading.)
- Reliability, Claude API +20: Claude API 60 (Status page at status.claude.com with component history (20).); Muse Ember 40 (Model reading, for the surface it's called on, Meta Model API.)