In short
How they differ.
Worked out from the figures below. Prices and specs are the makers' own, read Oct 20, 2026.
- Grok 4.7 reads more at once: a context window of 500K tokens against 131K.
- Muse Glimmer can be downloaded and run on your own machine; Grok 4.7 can't.
- No independent board we follow ranks both models yet.
Side by side
The specs.
| Grok 4.7 | Muse Glimmer | |
|---|---|---|
| Made by | SpaceXSI (formerly xAI) · US | Meta · US |
| Released | Sep 21, 2026 | Aug 2026 |
| Price per 1M tokens | $2 in / $6 out | Free to download; hosts set prices |
| Context window | 500K | 131K |
| Takes in | text, image | text, image |
| Download and run it yourself | No | Yes (Apache 2.0) |
| Size | Not published | ~29.6B (dense; repo header says 30B) parameters |
| Maker says | “Grok 4.7 is our most capable model for coding and knowledge work.” | “Built to enable always-on, local agents, available on Hugging Face.” |
| Sources | Prices, Oct 20, 2026 · Description | Prices, Oct 20, 2026 · Description |
Independent tests
Where they place.
Position on each board we follow (1 is best). Epoch AI's and Vectara's scores are shown; the other boards are linked for their own figures.
| Board | Grok 4.7 | Muse Glimmer |
|---|---|---|
| LMArena WebDevLMArena, Oct 19, 2026 | #18 | Not listed |
| LMArena Agent ArenaLMArena, Oct 19, 2026 | #17 | Not listed |
| Humanity's Last ExamScale AI | #13 | Not listed |
| Vals IndexVals AI, Oct 19, 2026 | #11 | Not listed |
| Terminal-Bench 4.0Vals AI, Oct 19, 2026 | #20 | Not listed |
| Vibe Code BenchVals AI, Oct 18, 2026 | #12 | Not listed |
More comparisons