Model Comparison
GPT-6 Astra (max)
vs. Grok 4.6 (high)
Comparing 2 AI models · 0 benchmarks · OpenAI, SpaceXAI
Recommended Pick
Strongest on: Value, Input price, Output price
Best Value
Grok 4.6 (high)
100.0 value score
60.9 reasoning / $3.00/1M
Lowest Price
Grok 4.6 (high)
$2.00/1M input price
Best Reasoning
GPT-6 Astra (max)
61.2 reasoning score
Blends available reasoning benchmarks
Best for Coding
GPT-6 Astra (max)
76.9 coding index
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 5.0x cheaper on input tokens than GPT-6 Astra (max).
Reasoning gap
GPT-6 Astra (max) leads Grok 4.6 (high) by 0.3 points on reasoning.
Coding gap
GPT-6 Astra (max) leads Grok 4.6 (high) by 0.1 points on coding.
Top-pick rationale
Grok 4.6 (high) wins 4 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.
GPT-6 Astra (max)
OpenAI
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
—
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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OpenAI-compatible inference
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Full Comparison
| Metric | Op GPT-6 Astra (max) | Top Pick Sp Grok 4.6 (high) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $10.00/1M | $2.00/1M |
| Output Cost | $50.00/1M | $6.00/1M |
| Blended (3:1) | $20.00/1M | $3.00/1M |
| Specifications | ||
| Organization | OpenAI | SpaceXAI |
| Release Date | Sep 3, 2026 | Aug 12, 2026 |
| Performance & Speed | ||
| Throughput | — | 64.9 tok/s |
| TTFT | — | 51950ms |
| Latency | — | 51950ms |
| Composite Indices | ||
| Value Score | 15.1 | 100.0 |
| Reasoning Score | 61.2 | 60.9 |
| Intelligence | 61.2 | 60.9 |
| Coding | 76.9 | 76.8 |
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-6 Astra (max) has the strongest reasoning profile with a 61.2 reasoning score,combining the available reasoning-heavy benchmarks.
GPT-6 Astra (max) reaches a 76.9 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
GPT-6 Astra (max)
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
Grok 4.6 (high)
- Cost-sensitive applications
- High-volume processing
