Solar Pro 4 is cheaper than o3 Mini at $0.09/M vs $1.1/M input tokens.
| Spec | o3 Mini | Solar Pro 4 |
|---|---|---|
| Input price | $1.1/M tokens | $0.09/M tokens |
| Output price | $4.4/M tokens | $0.36/M tokens |
| Context window | 64K tokens | 524K tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Dec 2024 | Aug 2026 |
Not enough votes to call it. On the specs, Solar Pro 4 has the edge: bigger model tier, newer, bigger context window.
Solar Pro 4 costs 12x less per token.
Solar Pro 4 is cheaper on both: 12× input, 12× output.
Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.