Solar Pro 4 is cheaper than o1 at $0.09/M vs $15/M input tokens.
| Spec | o1 | Solar Pro 4 |
|---|---|---|
| Input price | $15/M tokens | $0.09/M tokens |
| Output price | $60/M tokens | $0.36/M tokens |
| Context window | 128K 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 167x less per token.
Solar Pro 4 is cheaper on both: 167× input, 167× output.
Per million tokens. Prices and uptime via OpenRouter, checked 22 Sep 2026.