Model Comparison
Solar Pro 2 (Preview) (Non-reasoning)
vs. Grok 4.6 (high)
Comparing 2 AI models · 8 benchmarks · Upstage, SpaceXAI
Recommended Pick
SpGrok 4.6 (high)6 metric winsStrongest on: Throughput, Reasoning, Intelligence
Lowest Price
Solar Pro 2 (Preview) (Non-reasoning)
$0.00/1M input price
Best Reasoning
Grok 4.6 (high)
66.2 reasoning score
Blends available reasoning benchmarks
Best for Coding
Grok 4.6 (high)
76.8 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
Solar Pro 2 (Preview) (Non-reasoning) is ∞x cheaper on input tokens than Grok 4.6 (high).
Reasoning gap
Grok 4.6 (high) leads Solar Pro 2 (Preview) (Non-reasoning) by 29.3 points on reasoning.
Top-pick rationale
Grok 4.6 (high) wins 6 measurable categories, including Throughput, Reasoning, Intelligence, GPQA.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Solar Pro 2 (Preview) (Non-reasoning)
Upstage
TTFT
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Time
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tok/s
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Tokens
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Cost
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Grok 4.6 (high)
SpaceXAI
TTFT
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Time
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tok/s
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Tokens
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Cost
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Which answer was more useful?
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Full Comparison
| Metric | Up Solar Pro 2 (Preview) (Non-reasoning) | Top Pick Sp Grok 4.6 (high) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $2.00/1M |
| Output Cost | $0.00/1M | $6.00/1M |
| Blended (3:1) | — | $3.00/1M |
| Specifications | ||
| Organization | Upstage | SpaceXAI |
| Release Date | May 20, 2025 | Aug 12, 2026 |
| Performance & Speed | ||
| Throughput | — | 58.2 tok/s |
| TTFT | — | 45246ms |
| Latency | — | 45246ms |
| Composite Indices | ||
| Value Score | — | 100.0 |
| Reasoning Score | 36.9 | 66.2 |
| Intelligence | 9.9 | 60.9 |
| Coding | — | 76.8 |
| Standard Benchmarks | ||
| GPQA | 54.4% | 94.9% |
| MMLU Pro | 72.5% | — |
| HLE | 3.7% | 42.9% |
| LiveCodeBench | 38.5% | — |
| MATH 500 | 87.1% | — |
| AIME (Original) | 29.7% | — |
| SciCode | 27.2% | 53.6% |
| LCR | — | 75.0% |
Key Takeaways
Solar Pro 2 (Preview) (Non-reasoning) offers the best value at $0.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Grok 4.6 (high) has the strongest reasoning profile with a 66.2 reasoning score,combining the available reasoning-heavy benchmarks.
Grok 4.6 (high) reaches a 76.8 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
Solar Pro 2 (Preview) (Non-reasoning)
- Cost-sensitive applications
- High-volume processing
Grok 4.6 (high)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
