Muse Spark 1.3 Contributor is the newer model, released after Grok 4.1 Fast.
| Spec | Grok 4.1 Fast | Muse Spark 1.3 Contributor |
|---|---|---|
| Input price | — | $0.1/M tokens |
| Output price | — | $0.2/M tokens |
| Context window | — | 1.0M tokens |
| Released | Nov 2025 | Sep 2026 |
Not enough votes to call it. On the specs, nothing separates them.
Grok 4.1 Fast uses 97.0x more emoji
Muse Spark 1.3 Contributor is the newer model, released after Grok 4.1 Fast.
| Spec | Grok 4.1 Fast | Muse Spark 1.3 Contributor |
|---|---|---|
| Input price | — | $0.1/M tokens |
| Output price | — | $0.2/M tokens |
| Context window | — | 1.0M tokens |
| Released | Nov 2025 | Sep 2026 |
Not enough votes to call it. On the specs, nothing separates them.
Grok 4.1 Fast uses 97.0x more emoji