Model Comparison
Grok 4.6 (high)
vs. GPT-5.6 Sol (max)
Comparing 2 AI models · 7 benchmarks · SpaceXAI, OpenAI
Recommended Pick
SpGrok 4.6 (high)8 metric winsStrongest on: Value, Input price, Output price
Best Value
Grok 4.6 (high)
100.0 value score
66.2 reasoning / $3.00/1M
Lowest Price
Grok 4.6 (high)
$2.00/1M input price
Best Reasoning
GPT-5.6 Sol (max)
68.2 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-5.6 Sol (max)
77.4 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
Grok 4.6 (high) has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Grok 4.6 (high) is 2.5x cheaper on input tokens than GPT-5.6 Sol (max).
Reasoning gap
GPT-5.6 Sol (max) leads Grok 4.6 (high) by 1.9 points on reasoning.
Coding gap
GPT-5.6 Sol (max) leads Grok 4.6 (high) by 0.6 points on coding.
Top-pick rationale
Grok 4.6 (high) wins 8 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.
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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GPT-5.6 Sol (max)
OpenAI
TTFT
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Time
—
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 | Top Pick Sp Grok 4.6 (high) | Op GPT-5.6 Sol (max) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $2.00/1M | $5.00/1M |
| Output Cost | $6.00/1M | $30.00/1M |
| Blended (3:1) | $3.00/1M | $11.25/1M |
| Specifications | ||
| Organization | SpaceXAI | OpenAI |
| Release Date | Aug 12, 2026 | Jul 9, 2026 |
| Performance & Speed | ||
| Throughput | 67.4 tok/s | 65.5 tok/s |
| TTFT | 49322ms | 113767ms |
| Latency | 49322ms | 113767ms |
| Composite Indices | ||
| Value Score | 100.0 | 27.4 |
| Reasoning Score | 66.2 | 68.2 |
| Intelligence | 60.9 | 60.9 |
| Coding | 76.8 | 77.4 |
| Standard Benchmarks | ||
| GPQA | 94.9% | 94.1% |
| HLE | 42.9% | 49.5% |
| SciCode | 53.6% | 56.1% |
| LCR | 75.0% | 77.7% |
| IFBench | — | 72.7% |
| TAU-bench v2 | — | 85.1% |
| TerminalBench Hard | — | 65.9% |
Key Takeaways
Grok 4.6 (high) offers the best value at $2.00/1M,making it ideal for high-volume applications and cost-conscious projects.
GPT-5.6 Sol (max) has the strongest reasoning profile with a 68.2 reasoning score,combining the available reasoning-heavy benchmarks.
GPT-5.6 Sol (max) reaches a 77.4 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
Grok 4.6 (high)
- Cost-sensitive applications
- High-volume processing
GPT-5.6 Sol (max)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
