token.app › Compare › Mercury 3 vs DeepSeek V4 Flash 0731
Mercury 3 vs DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731 is 2.4× cheaper per token on a blended 3:1 basis. DeepSeek V4 Flash 0731 accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| Mercury 3 | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Provider | Inception | DeepSeek |
| Input $/1M | $0.100 | $0.044 |
| Output $/1M | $0.350 | $0.133 |
| Blended $/1M | $0.163 | $0.067 |
| Context window | 1M | 1.0M |
| Max output | 131K | 131K |
| Released | Oct 2026 | Jul 2026 |
| Licence | Proprietary | Open weights |
Choose Mercury 3 if…
- Newer model (released Oct 2026)
Choose DeepSeek V4 Flash 0731 if…
- Costs less per token — $0.067 vs $0.163 blended
- Larger context window (1.0M)
- Open weights — self-hostable
FAQ
Which is better, Mercury 3 or DeepSeek V4 Flash 0731?
We do not hold independently-run benchmark scores covering both Mercury 3 and DeepSeek V4 Flash 0731, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Mercury 3 cheaper than DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.067 versus $0.163 per million tokens blended at 3:1 input:output. Input alone: $0.100 vs $0.044. Output alone: $0.350 vs $0.133.
What context windows do Mercury 3 and DeepSeek V4 Flash 0731 have?
Mercury 3: 1,000,000 tokens. DeepSeek V4 Flash 0731: 1,048,576 tokens.
Who makes Mercury 3 and DeepSeek V4 Flash 0731?
Mercury 3 is made by Inception. DeepSeek V4 Flash 0731 is made by DeepSeek.