DeepSeek V4.1 Flash is cheaper than OpenAI o4 Mini High at $0.15/M vs $1.1/M input tokens.
| Spec | DeepSeek V4.1 Flash | OpenAI o4 Mini High |
|---|---|---|
| Input price | $0.15/M tokens | $1.1/M tokens |
| Output price | $0.6/M tokens | $4.4/M tokens |
| Context window | 1.0M tokens | 200K tokens |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Sep 2026 | Apr 2025 |
Not enough votes to call it. On the specs, DeepSeek V4.1 Flash has the edge: bigger model tier, newer, bigger context window.
DeepSeek V4.1 Flash costs 7.3x less per token.
DeepSeek V4.1 Flash is cheaper on both: 7.3× input, 7.3× output.
Per million tokens. Prices and uptime via OpenRouter, checked 23 Sep 2026.