DeepSeek R1 0528 is cheaper than GPT-5 at $0/M vs $1.25/M input tokens.
| Spec | DeepSeek R1 0528 | GPT-5 |
|---|---|---|
| Input price | Free | $1.25/M tokens |
| Output price | Free | $10/M tokens |
| Context window | 164K tokens | 400K tokens |
| Parameters | 671B (37B active) | Not disclosed |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | May 2025 | Aug 2025 |
| SWE-bench Verified | 57.6% | 74.9% |
Not enough votes to call it. On the specs, GPT-5 has the edge: newer, bigger context window.
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
DeepSeek R1 0528 uses 82.1x more emoji