token.app › Compare › o3 (batch) vs Mercury 3
o3 (batch) vs Mercury 3
Mercury 3 is 11× 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
| o3 (batch) | Mercury 3 | |
|---|---|---|
| Provider | OpenAI | Inception |
| Input $/1M | $1.00 | $0.100 |
| Output $/1M | $4.00 | $0.350 |
| Blended $/1M | $1.75 | $0.163 |
| Context window | 200K | 1M |
| Max output | 100K | 131K |
| Released | Apr 2025 | Oct 2026 |
| Licence | Proprietary | Proprietary |
Choose o3 (batch) if…
- No clear advantage on the data we hold.
Choose Mercury 3 if…
- Costs less per token — $0.163 vs $1.75 blended
- Larger context window (1M)
- Newer model (released Oct 2026)
FAQ
Which is better, o3 (batch) or Mercury 3?
We do not hold independently-run benchmark scores covering both o3 (batch) and Mercury 3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is o3 (batch) cheaper than Mercury 3?
Mercury 3 is cheaper: $0.163 versus $1.75 per million tokens blended at 3:1 input:output. Input alone: $1.00 vs $0.100. Output alone: $4.00 vs $0.350.
What context windows do o3 (batch) and Mercury 3 have?
o3 (batch): 200,000 tokens. Mercury 3: 1,000,000 tokens.
Who makes o3 (batch) and Mercury 3?
o3 (batch) is made by OpenAI. Mercury 3 is made by Inception.