GPT-5 MinivsHy4 Preview
GPT-5 Mini is cheaper than Hy4 Preview at $0.25/M vs $0.834/M input tokens.
| Spec | GPT-5 Mini | Hy4 Preview |
|---|---|---|
| Input price | $0.25/M tokens | $0.834/M tokens |
| Output price | $2/M tokens | $2.501/M tokens |
| Context window | — | 1.0M tokens |
| Weights | Closed | — |
| Free API (OpenRouter) | No | No |
| Released | Aug 2025 | Aug 2026 |
Our Verdict
Hy4 Preview
GPT-5 MiniRunner-up
Not enough votes to call it. On the specs, Hy4 Preview has the edge: bigger model tier, newer, bigger context window.
Too close to call
API pricing
Cost per 1M tokens
GPT-5 Mini
Input
$0.25
3.3× cheaper
Output
$2.00
1.3× cheaper
Hy4 Preview
Input
$0.83
Output
$2.50
GPT-5 Mini is cheaper on both: 3.3× input, 1.3× output.
Where to run it
3 hosts
Hy4 Preview1 host
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Writing DNA
Style Comparison
Similarity
37%
Hy4 Preview uses 591.2x more bold
GPT-5 Mini
Hy4 Preview
62%Vocabulary53%
22wSentence Length16w
0.21Hedging0.43
0.0Bold5.9
3.8Lists3.8
0.00Emoji0.40
0.00Headings0.67
0.04Transitions0.13
Based on 21 + 27 text responses
Research
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