DeepSeek R1 is cheaper than GPT-5 at $0.55/M vs $1.25/M input tokens.
| Spec | DeepSeek R1 | GPT-5 |
|---|---|---|
| Input price | $0.55/M tokens | $1.25/M tokens |
| Output price | $2.19/M tokens | $10/M tokens |
| Context window | 128K tokens | 400K tokens |
| Parameters | 671B (37B active) | Not disclosed |
| Weights | Open | Closed |
| Free API (OpenRouter) | No | No |
| Released | Feb 2025 | Aug 2025 |
| SWE-bench Verified | 49.2% | 74.9% |
Not enough votes to call it. On the specs, GPT-5 has the edge: bigger model tier, newer, bigger context window.
Pick DeepSeek R1 for Web Design. Pick GPT-5 for Image Generation. DeepSeek R1 costs 4.6x less per token.
DeepSeek R1 is cheaper on both: 2.3× input, 4.6× output.
Per million tokens. Prices and uptime via OpenRouter, checked 8 Sep 2026.
DeepSeek R1 uses 26.7x more emoji