token.app › Compare › GPT Terra Latest vs Mercury 3
GPT Terra Latest vs Mercury 3
Mercury 3 is 28× cheaper per token on a blended 3:1 basis. GPT Terra Latest accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| GPT Terra Latest | Mercury 3 | |
|---|---|---|
| Provider | OpenAI | Inception |
| Input $/1M | $2.00 | $0.100 |
| Output $/1M | $12.00 | $0.350 |
| Blended $/1M | $4.50 | $0.163 |
| Context window | 1.1M | 1M |
| Max output | 128K | 131K |
| Released | Sep 2026 | Oct 2026 |
| Licence | Proprietary | Proprietary |
Choose GPT Terra Latest if…
- Larger context window (1.1M)
Choose Mercury 3 if…
- Costs less per token — $0.163 vs $4.50 blended
- Newer model (released Oct 2026)
FAQ
Which is better, GPT Terra Latest or Mercury 3?
We do not hold independently-run benchmark scores covering both GPT Terra Latest and Mercury 3, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT Terra Latest cheaper than Mercury 3?
Mercury 3 is cheaper: $0.163 versus $4.50 per million tokens blended at 3:1 input:output. Input alone: $2.00 vs $0.100. Output alone: $12.00 vs $0.350.
What context windows do GPT Terra Latest and Mercury 3 have?
GPT Terra Latest: 1,050,000 tokens. Mercury 3: 1,000,000 tokens.
Who makes GPT Terra Latest and Mercury 3?
GPT Terra Latest is made by OpenAI. Mercury 3 is made by Inception.
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