Model Comparison
K3 (low)
vs. Grok 4.6 (high)
Comparing 2 AI models · 4 benchmarks · Kimi, SpaceXAI
Recommended Pick
SpGrok 4.6 (high)12 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
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
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 1.5x cheaper on input tokens than K3 (low).
Speed gap
Grok 4.6 (high) generates about 1.9x as many tokens per second as K3 (low).
Reasoning gap
Grok 4.6 (high) leads K3 (low) by 13.7 points on reasoning.
Coding gap
Grok 4.6 (high) leads K3 (low) by 4.8 points on coding.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
K3 (low)
Kimi
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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Full Comparison
| Metric | Ki K3 (low) | Top Pick Sp Grok 4.6 (high) |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $3.00/1M | $2.00/1M |
| Output Cost | $15.00/1M | $6.00/1M |
| Blended (3:1) | $6.00/1M | $3.00/1M |
| Specifications | ||
| Organization | Kimi | SpaceXAI |
| Release Date | Jul 16, 2026 | Aug 12, 2026 |
| Performance & Speed | ||
| Throughput | 36.3 tok/s | 67.4 tok/s |
| TTFT | 2630ms | 49322ms |
| Latency | 57769ms | 49322ms |
| Composite Indices | ||
| Value Score | 39.6 | 100.0 |
| Reasoning Score | 52.5 | 66.2 |
| Intelligence | 48.3 | 60.9 |
| Coding | 72.0 | 76.8 |
| Standard Benchmarks | ||
| GPQA | 84.2% | 94.9% |
| HLE | 25.0% | 42.9% |
| SciCode | 51.2% | 53.6% |
| LCR | 77.0% | 75.0% |
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.
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
K3 (low)
- General-purpose AI
- Versatile applications
Grok 4.6 (high)
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
