Verdict
computed from the published numbersGrok 4.6 wins on Terminal-Bench, on intelligence and on context window.
Price
Tied
Terminal-Bench
Grok 4.6
Intelligence
Grok 4.6
Context window
Grok 4.6
Key takeaways
who wins on what, from the published numbersGrok 4.5 wins
No clear edge on the tracked metrics.
Grok 4.6 wins
- Larger context window (500K vs 524K)
- Higher max output (500K vs 524K)
- More serving providers (3 vs 8)
Cheaper overall
Tied
Larger context
Grok 4.6
524K
More providers
Grok 4.6
8 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower.
| Grok 4.5 | Grok 4.6 | |
|---|---|---|
| Input $/1M | $2.00via xAI | $2.00via xAI |
| Output $/1M | $6.00via xAI | $6.00via xAI |
| Context window | 500K | 524K best |
| Max output | 500K | 524K best |
| Serving providers | 3 | 8 best |
| Date | Released Jul 7, 2026 | Released Aug 10, 2026 |
Benchmarks
Benchmark scores, side by side| Grok 4.5 | Grok 4.6 | |
|---|---|---|
| Intelligence | 38.8 | 44.3 best |
| Terminal-Bench | 82% | 88% best |
| GPQA Diamond | 93% | 95% best |
| Output speed | 63 t/s best | 56 t/s |
| Latency (TTFT) | 13.52s best | 43.86s |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Grok 4.5
via OpenRouter
$16
Grok 4.6
via OpenRouter
$16
Capabilities
feature support, side by side| Feature | Grok 4.5 | Grok 4.6 |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | ✓ | ✓ |
Related comparisons
Frequently asked questions
Which is cheaper, Grok 4.5 or Grok 4.6?
Grok 4.5 and Grok 4.6 have the same cheapest published input and output rates.
What is the context window difference between Grok 4.5 and Grok 4.6?
Grok 4.5 has a 500K-token context window and Grok 4.6 has 524K tokens, so Grok 4.6 can take a larger prompt.
How do Grok 4.5 and Grok 4.6 compare on benchmarks?
On the tracked benchmarks, Grok 4.6 leads on Terminal-Bench, and Grok 4.6 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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