Grok 4.5 vs Muse Spark 1.1
Price, context and benchmark scores side by side — every number from the live model catalogue.
| Grok 4.5x-ai | Muse Spark 1.1meta | |
|---|---|---|
| Input / 1M tokens | $2.00 | $1.25 |
| Output / 1M tokens | $6.00 | $4.25 |
| 1M in + 300K out | $3.80 | $2.52 |
| Context window | 500K | 1.0M |
| Intelligence index | 53.8 | 50.6 |
| Coding index | 72.4 | 71.3 |
| Agentic index | 45.7 | 37.5 |
| Cheapest provider | xAI | Meta |
| Providers serving it | 1 | 1 |
| Weights | Closed | Closed |
| Image input | Yes | Yes |
| Tool calling | Yes | Yes |
| Reasoning mode | Yes | Yes |
| Released | Jul 8, 2026 | Jul 16, 2026 |
Which one to pick
Pick Grok 4.5 if…
- You want the higher general-intelligence score (53.8).
- Code quality is the priority — it leads on the coding index (72.4).
- You are running agent loops — higher agentic index (45.7).
Pick Muse Spark 1.1 if…
- Token cost matters: $4.25 per 1M output vs $6.00.
- You need the bigger context window (1.0M).
FAQ
Is Grok 4.5 better than Muse Spark 1.1?
Grok 4.5 scores higher on general intelligence (53.8 vs 50.6), while Muse Spark 1.1 is 1.4× cheaper per output token ($4.25 vs $6.00). For code, Grok 4.5 leads (72.4 coding index). Muse Spark 1.1 takes the larger context at 1.0M.
Which is cheaper, Grok 4.5 or Muse Spark 1.1?
Muse Spark 1.1, at $4.25 per 1M output tokens versus $6.00. On a 1M input + 300K output workload that is $2.52 against $3.80.
Can I self-host Grok 4.5 or Muse Spark 1.1?
Grok 4.5: closed weights, API only. Muse Spark 1.1: closed weights, API only.