token.app › Compare › gpt-oss-120b vs Mercury 3
gpt-oss-120b vs Mercury 3
Mercury 3 is 1.6× 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
| gpt-oss-120b | Mercury 3 | |
|---|---|---|
| Provider | OpenAI | Inception |
| Input $/1M | $0.150 | $0.100 |
| Output $/1M | $0.600 | $0.350 |
| Blended $/1M | $0.262 | $0.163 |
| Context window | 131K | 1M |
| Max output | 66K | 131K |
| Released | Aug 2025 | Oct 2026 |
| Licence | Open weights | Proprietary |
Choose gpt-oss-120b if…
- Open weights — self-hostable
Choose Mercury 3 if…
- Costs less per token — $0.163 vs $0.262 blended
- Larger context window (1M)
- Newer model (released Oct 2026)
FAQ
Which is better, gpt-oss-120b or Mercury 3?
We do not hold independently-run benchmark scores covering both gpt-oss-120b and Mercury 3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is gpt-oss-120b cheaper than Mercury 3?
Mercury 3 is cheaper: $0.163 versus $0.262 per million tokens blended at 3:1 input:output. Input alone: $0.150 vs $0.100. Output alone: $0.600 vs $0.350.
What context windows do gpt-oss-120b and Mercury 3 have?
gpt-oss-120b: 131,072 tokens. Mercury 3: 1,000,000 tokens.
Who makes gpt-oss-120b and Mercury 3?
gpt-oss-120b is made by OpenAI. Mercury 3 is made by Inception.