# Gemini 4 Hydrogen vs Muse Ember (slim)

> Gemini 4 Hydrogen scores 64.9 (B) to Muse Ember's 53.1 (D) for llm inference. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/gemini-4-hydrogen-vs-muse-ember.md (~6,600 tokens) · this version ~930 tokens · JSON https://www.anchorterminal.com/compare/gemini-4-hydrogen-vs-muse-ember.json · canonical https://www.anchorterminal.com/compare/gemini-4-hydrogen-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: 2026-11-13
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)

Gemini 4 Hydrogen scores 64.9 (B) on agent readiness against Muse Ember's 53.1 (D), and leads in 6 of 7 scored categories. Muse Ember leads on security & auth. Both do llm inference.

- Gemini 4 Hydrogen: B 64.9, rank #546 of 1524 · https://www.anchorterminal.com/tools/gemini-4-hydrogen.min.md
- Muse Ember: D 53.1, rank #1034 of 1524 · https://www.anchorterminal.com/tools/muse-ember.min.md
- Gemini 4 Hydrogen, good for Agents doing everyday coding, tool calls and document work at volume on the Gemini API, including ones that need to start on a free key, or as the executor beside Carbon or Argon. Ahead on Reliability, 45 against 40; Schema & documentation, 85 against 60; Agent ergonomics, 90 against 72; Payments & pricing, 40 against 30; Maintenance & community, 85 against 46; Transparency & trust, 72 against 53.
- 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. Ahead on Security & auth, 64 against 50.

| Category | Gemini 4 Hydrogen | Muse Ember |
| --- | --- | --- |
| Reliability (16%) | 45 | 40 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 85 | 60 |
| Agent ergonomics (13%) | 90 | 72 |
| Security & auth (14%) | 50 | 64 |
| Payments & pricing (10%) | 40 | 30 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 85 | 46 |
| Transparency & trust (7%) | 72 | 53 |

| Fact (where they differ) | Gemini 4 Hydrogen | Muse Ember |
| --- | --- | --- |
| Vendor | Google | Meta |
| Hosted endpoint | `https://generativelanguage.googleapis.com/v1beta` | `https://api.meta.ai/v1` |
| Licence | Closed model, used through the Gemini API and Google's apps under Google's terms | 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 | 2026-11-12 | 2026-11-09 |
| Terms last updated | 2026-04-28 | 2026-10-02 |
| Privacy policy last updated | 2026-10-01 | couldn't be read |
| Terms restrict automated access | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |

Why the edge:
- Maintenance & community, Gemini 4 Hydrogen +39: Gemini 4 Hydrogen 85 (Model reading for gemini-4-hydrogen on the Gemini API.); Muse Ember 46 (Model reading.)
- Schema & documentation, Gemini 4 Hydrogen +25: Gemini 4 Hydrogen 85 (Model reading for gemini-4-hydrogen on the Gemini API.); Muse Ember 60 (Model reading.)
- Transparency & trust, Gemini 4 Hydrogen +19: Gemini 4 Hydrogen 72 (Model reading for gemini-4-hydrogen on the Gemini API.); Muse Ember 53 (Editorial half.)
- Agent ergonomics, Gemini 4 Hydrogen +18: Gemini 4 Hydrogen 90 (Model reading for gemini-4-hydrogen on the Gemini API.); Muse Ember 72 (Model reading.)
- Security & auth, Muse Ember +14: Gemini 4 Hydrogen 50 (Model reading for gemini-4-hydrogen on the Gemini API.); Muse Ember 64 (Platform readings are the meta-model-api listing's of 4 November.)
- Payments & pricing, Gemini 4 Hydrogen +10: Gemini 4 Hydrogen 40 (Model reading for gemini-4-hydrogen on the Gemini API.); Muse Ember 30 (Published rubric.)