Model Comparison
Grok 4.20 0309 v2 (Reasoning)
vs. Muse Spark
Comparing 2 AI models · 7 benchmarks · xAI, Meta
Recommended Pick
Me Muse Spark 11 metric wins Strongest on: Input price, Output price, TTFT
Lowest Price
Muse Spark
$0.00/1M input price
Best Reasoning
Muse Spark
60.2 reasoning score
Blends available reasoning benchmarks
Best for Coding
Muse Spark
47.5 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Price gap
Muse Spark is ∞x cheaper on input tokens than Grok 4.20 0309 v2 (Reasoning).
Reasoning gap
Muse Spark leads Grok 4.20 0309 v2 (Reasoning) by 2.6 points on reasoning.
Coding gap
Muse Spark leads Grok 4.20 0309 v2 (Reasoning) by 7.0 points on coding.
Top-pick rationale
Muse Spark wins 11 measurable categories, including Input price, Output price, TTFT, Latency.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Grok 4.20 0309 v2 (Reasoning)
xAI
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Muse Spark
Meta
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Full Comparison
| Metric | xA Grok 4.20 0309 v2 (Reasoning) | Top Pick Me Muse Spark |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $2.00/1M | $0.00/1M |
| Output Cost | $6.00/1M | $0.00/1M |
| Blended (3:1) | $3.00/1M | — |
| Specifications | ||
| Organization | xAI | Meta |
| Release Date | Apr 7, 2026 | Apr 8, 2026 |
| Performance & Speed | ||
| Throughput | 224.1 tok/s | — |
| TTFT | 23980ms | — |
| Latency | 23980ms | — |
| Composite Indices | ||
| Value Score | 100.0 | — |
| Reasoning Score | 57.5 | 60.2 |
| Intelligence | 49.3 | 52.2 |
| Coding | 40.5 | 47.5 |
| Standard Benchmarks | ||
| GPQA | 91.1% | 88.4% |
| HLE | 32.2% | 39.9% |
| SciCode | 45.6% | 51.5% |
| LCR | 58.0% | 69.7% |
| IFBench | 81.2% | 75.9% |
| TAU-bench v2 | 93.0% | 91.5% |
| TerminalBench Hard | 37.9% | 45.5% |
Key Takeaways
Muse Spark offers the best value at $0.00/1M, making it ideal for high-volume applications and cost-conscious projects.
Muse Spark has the strongest reasoning profile with a 60.2 reasoning score, combining the available reasoning-heavy benchmarks.
Muse Spark reaches a 47.5 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
Grok 4.20 0309 v2 (Reasoning)
- General-purpose AI
- Versatile applications
Muse Spark
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
