$ diff muse-glimmer claude-opus-5
Muse Glimmer vs Claude Opus 5
Values come from Muse Glimmer and Claude Opus 5, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
Meta AIMuse Glimmer
- context
- 131K
- weights
- open
- $/M in
- —
- $/M out
- —
- context
- 1M
- weights
- closed
- $/M in
- $5
- $/M out
- $25
What actually differs
- Context window
- Claude Opus 5 takes 1M against 131K — 7.6× more room in a single request.
- Weights
- Muse Glimmer publishes weights (Apache 2.0); Claude Opus 5 is API-only. That decides self-hosting, air-gapped deployment and fine-tuning before any capability question does.
- Recency
- Muse Glimmer shipped 17 days after Claude Opus 5 (2026-08-10 vs 2026-07-24).
Full spec
| Attribute | Muse Glimmer | Claude Opus 5 |
|---|---|---|
| Developer | Meta AI | Anthropic |
| Released | 2026-08-10 | 2026-07-24 |
| Context window | 131,072 | 1M tokens |
| Pricing | not recorded | $5/M input · $25/M output (standard); $10/M · $50/M (Fast mode, research preview) |
| License | Apache 2.0 | proprietary |
| Availability | Hugging Face (open weights), Ollama, LM Studio, vLLM, SGLang, Together AI, Fireworks AI, OpenRouter | Claude.ai, API (`claude-opus-5`), Bedrock (`anthropic.claude-opus-53`), Vertex AI, Microsoft Foundry, Claude Code, Cowork |