Model Comparison
Muse Spark 1.2 (xhigh)
vs. Grok 4.5 (high)
Comparing 2 AI models · 4 benchmarks · Meta, SpaceXAI
Recommended Pick
MeMuse Spark 1.2 (xhigh)11 metric winsStrongest on: Value, Input price, Output price
Best Value
Muse Spark 1.2 (xhigh)
100.0 value score
64.2 reasoning / $2.00/1M
Lowest Price
Muse Spark 1.2 (xhigh)
$1.25/1M input price
Best Reasoning
Muse Spark 1.2 (xhigh)
64.2 reasoning score
Blends available reasoning benchmarks
Best for Coding
Grok 4.5 (high)
72.4 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Best value
Muse Spark 1.2 (xhigh) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Muse Spark 1.2 (xhigh) is 1.6x cheaper on input tokens than Grok 4.5 (high).
Reasoning gap
Muse Spark 1.2 (xhigh) leads Grok 4.5 (high) by 0.4 points on reasoning.
Coding gap
Grok 4.5 (high) leads Muse Spark 1.2 (xhigh) by 0.2 points on coding.
Top-pick rationale
Muse Spark 1.2 (xhigh) wins 11 measurable categories, including Value, Input price, Output price, Blended price.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Muse Spark 1.2 (xhigh)
Meta
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Grok 4.5 (high)
SpaceXAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
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Full Comparison
| Metric | Top Pick Me Muse Spark 1.2 (xhigh) | Sp Grok 4.5 (high) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $1.25/1M | $2.00/1M |
| Output Cost | $4.25/1M | $6.00/1M |
| Blended (3:1) | $2.00/1M | $3.00/1M |
| Specifications | ||
| Organization | Meta | SpaceXAI |
| Release Date | Aug 5, 2026 | Jul 8, 2026 |
| Performance & Speed | ||
| Throughput | — | 54.8 tok/s |
| TTFT | — | 12432ms |
| Latency | — | 12432ms |
| Composite Indices | ||
| Value Score | 100.0 | 66.3 |
| Reasoning Score | 64.2 | 63.9 |
| Intelligence | 56.8 | 55.8 |
| Coding | 72.2 | 72.4 |
| Standard Benchmarks | ||
| GPQA | 90.4% | 93.1% |
| HLE | 45.5% | 42.7% |
| SciCode | 56.4% | 54.1% |
| LCR | 83.3% | 74.0% |
Key Takeaways
Muse Spark 1.2 (xhigh) offers the best value at $1.25/1M,making it ideal for high-volume applications and cost-conscious projects.
Muse Spark 1.2 (xhigh) has the strongest reasoning profile with a 64.2 reasoning score,combining the available reasoning-heavy benchmarks.
Grok 4.5 (high) reaches a 72.4 coding index,making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Muse Spark 1.2 (xhigh)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
Grok 4.5 (high)
- Code generation
- Software development
