In short
How they differ.
Worked out from the figures below. Prices and specs are the makers' own, read Oct 20, 2026.
- Muse Spark Open can be downloaded and run on your own machine; Mistral Large 4 can't.
- No independent board we follow ranks both models yet.
Side by side
The specs.
| Mistral Large 4 | Muse Spark Open | |
|---|---|---|
| Made by | Mistral AI · France | Meta · US |
| Released | Oct 6, 2026 | Oct 15, 2026 |
| Price per 1M tokens | $0.68 in / $2.09 out (sale price) | Free to download; hosts set prices |
| Context window | 1M | 1M |
| Takes in | text, image | text, image, video, audio |
| Download and run it yourself | No | Yes (Muse Model License) |
| Size | 1.05T parameters, 52B active | 816B parameters, 42B active |
| Maker says | “Mistral Large 4 is a state-of-the-art, open-weight, general-purpose multimodal model with a granular Mixture-of-Experts” | “The most capable US open-weight model to date. Build your way, anywhere.” |
| Sources | Prices, Oct 20, 2026 · Description | Prices, Oct 20, 2026 · Description |
More comparisons