DeepSeek V4.1 Flash is cheaper than Mercury at $0.15/M vs $10/M input tokens.
| Spec | DeepSeek V4.1 Flash | Mercury |
|---|---|---|
| Input price | $0.15/M tokens | $10/M tokens |
| Output price | $0.6/M tokens | $10/M tokens |
| Context window | 1.0M tokens | 32K tokens |
| Weights | Open | — |
| Free API (OpenRouter) | No | No |
| Released | Sep 2026 | Jun 2025 |
Not enough votes to call it. On the specs, DeepSeek V4.1 Flash has the edge: bigger model tier, newer, bigger context window, major provider backing.
DeepSeek V4.1 Flash costs 17x less per token.
DeepSeek V4.1 Flash is cheaper on both: 67× input, 17× output.
No hosts listed on OpenRouter.
Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.