token.app › Compare › o1-pro vs Grok 4.5
o1-pro vs Grok 4.5
Grok 4.5 is 88× cheaper per token on a blended 3:1 basis. Grok 4.5 accepts the larger context window (500K).
Head to head
Blended price uses a 3:1 input:output mix
| o1-pro | Grok 4.5 | |
|---|---|---|
| Provider | OpenAI | xAI |
| Input $/1M | $150.00 | $2.00 |
| Output $/1M | $600.00 | $6.00 |
| Blended $/1M | $262.50 | $3.00 |
| Context window | 200K | 500K |
| Max output | 100K | — |
| Released | Mar 2025 | Jul 2026 |
| Licence | Proprietary | Proprietary |
Choose o1-pro if…
- No clear advantage on the data we hold.
Choose Grok 4.5 if…
- Costs less per token — $3.00 vs $262.50 blended
- Larger context window (500K)
- Newer model (released Jul 2026)
FAQ
Which is better, o1-pro or Grok 4.5?
We do not hold independently-run benchmark scores covering both o1-pro and Grok 4.5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is o1-pro cheaper than Grok 4.5?
Grok 4.5 is cheaper: $3.00 versus $262.50 per million tokens blended at 3:1 input:output. Input alone: $150.00 vs $2.00. Output alone: $600.00 vs $6.00.
What context windows do o1-pro and Grok 4.5 have?
o1-pro: 200,000 tokens. Grok 4.5: 500,000 tokens.
Who makes o1-pro and Grok 4.5?
o1-pro is made by OpenAI. Grok 4.5 is made by xAI.