GPT-5.4 Mini is cheaper than Hy4 Preview at $0.75/M vs $0.834/M input tokens.
| Spec | GPT-5.4 Mini | Hy4 Preview |
|---|---|---|
| Input price | $0.75/M tokens | $0.834/M tokens |
| Output price | $4.5/M tokens | $2.501/M tokens |
| Context window | 400K tokens | 1.0M tokens |
| Released | Mar 2026 | Aug 2026 |
Not enough votes to call it. On the specs, Hy4 Preview has the edge: bigger model tier, newer, bigger context window.
GPT-5.4 Mini wins input (1.1× cheaper)·Hy4 Preview wins output (1.8× cheaper)
Hy4 Preview uses 40.1x more emoji
GPT-5.4 Mini is cheaper than Hy4 Preview at $0.75/M vs $0.834/M input tokens.
| Spec | GPT-5.4 Mini | Hy4 Preview |
|---|---|---|
| Input price | $0.75/M tokens | $0.834/M tokens |
| Output price | $4.5/M tokens | $2.501/M tokens |
| Context window | 400K tokens | 1.0M tokens |
| Released | Mar 2026 | Aug 2026 |
Not enough votes to call it. On the specs, Hy4 Preview has the edge: bigger model tier, newer, bigger context window.
GPT-5.4 Mini wins input (1.1× cheaper)·Hy4 Preview wins output (1.8× cheaper)
Hy4 Preview uses 40.1x more emoji