token.app › Compare › o1-pro vs Claude Sonnet 5
o1-pro vs Claude Sonnet 5
Claude Sonnet 5 is 66× cheaper per token on a blended 3:1 basis. Claude Sonnet 5 accepts the larger context window (1M).
Head to head
Blended price uses a 3:1 input:output mix
| o1-pro | Claude Sonnet 5 | |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Input $/1M | $150.00 | $2.00 |
| Output $/1M | $600.00 | $10.00 |
| Blended $/1M | $262.50 | $4.00 |
| Context window | 200K | 1M |
| Max output | 100K | 128K |
| Released | Mar 2025 | Jun 2026 |
| Licence | Proprietary | Proprietary |
Choose o1-pro if…
- No clear advantage on the data we hold.
Choose Claude Sonnet 5 if…
- Costs less per token — $4.00 vs $262.50 blended
- Larger context window (1M)
- Newer model (released Jun 2026)
FAQ
Which is better, o1-pro or Claude Sonnet 5?
We do not hold independently-run benchmark scores covering both o1-pro and Claude Sonnet 5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is o1-pro cheaper than Claude Sonnet 5?
Claude Sonnet 5 is cheaper: $4.00 versus $262.50 per million tokens blended at 3:1 input:output. Input alone: $150.00 vs $2.00. Output alone: $600.00 vs $10.00.
What context windows do o1-pro and Claude Sonnet 5 have?
o1-pro: 200,000 tokens. Claude Sonnet 5: 1,000,000 tokens.
Who makes o1-pro and Claude Sonnet 5?
o1-pro is made by OpenAI. Claude Sonnet 5 is made by Anthropic.