token.app › Compare › o1-pro vs Mercury 3
o1-pro vs Mercury 3
Mercury 3 is 1615× cheaper per token on a blended 3:1 basis. Mercury 3 accepts the larger context window (1M).
Head to head
Blended price uses a 3:1 input:output mix
| o1-pro | Mercury 3 | |
|---|---|---|
| Provider | OpenAI | Inception |
| Input $/1M | $150.00 | $0.100 |
| Output $/1M | $600.00 | $0.350 |
| Blended $/1M | $262.50 | $0.163 |
| Context window | 200K | 1M |
| Max output | 100K | 131K |
| Released | Mar 2025 | Oct 2026 |
| Licence | Proprietary | Proprietary |
Choose o1-pro if…
- No clear advantage on the data we hold.
Choose Mercury 3 if…
- Costs less per token — $0.163 vs $262.50 blended
- Larger context window (1M)
- Newer model (released Oct 2026)
FAQ
Which is better, o1-pro or Mercury 3?
We do not hold independently-run benchmark scores covering both o1-pro and Mercury 3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is o1-pro cheaper than Mercury 3?
Mercury 3 is cheaper: $0.163 versus $262.50 per million tokens blended at 3:1 input:output. Input alone: $150.00 vs $0.100. Output alone: $600.00 vs $0.350.
What context windows do o1-pro and Mercury 3 have?
o1-pro: 200,000 tokens. Mercury 3: 1,000,000 tokens.
Who makes o1-pro and Mercury 3?
o1-pro is made by OpenAI. Mercury 3 is made by Inception.