GPT-4.1 Mini is cheaper than GPT-5 at $0.4/M vs $1.25/M input tokens.
| Spec | GPT-4.1 Mini | GPT-5 |
|---|---|---|
| Input price | $0.4/M tokens | $1.25/M tokens |
| Output price | $1.6/M tokens | $10/M tokens |
| Context window | 1.0M tokens | 400K tokens |
| Parameters | Not disclosed | Not disclosed |
| Weights | Closed | Closed |
| Free API (OpenRouter) | No | No |
| Released | Apr 2025 | Aug 2025 |
Not enough votes to call it. On the specs, GPT-5 has the edge: bigger model tier, newer.
GPT-4.1 Mini costs 6.3x less per token.
GPT-4.1 Mini is cheaper on both: 3.1× input, 6.3× output.
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
GPT-4.1 Mini uses 65.5x more emoji