GPT-5 Nano vs Hy4
Price, context window & benchmark comparison
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Compare different models
Verdict: GPT-5 Nano is 4.5× cheaper than Hy4 on a typical 3:1 input/output mix. Hy4 has the larger context window (1M vs 400K).
| GPT-5 Nano | Hy4 | |
|---|---|---|
| Input price / 1M | $0.05 | $0.42 |
| Output price / 1M | $0.40 | $1.25 |
| Blended price (3:1) | $0.14 | $0.63 |
| Cached input / 1M | $0.005 | $0.021 |
| Context window | 400K | 1M |
| Max output | 128K | 66K |
| Intelligence index | — | 34.6 |
| Coding index | — | — |
| Providers | — | 1 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2025-08-07 | 2026-11-04 |
| Retirement | 2026-12-11 | — |
Cost calculator
FAQ
Which is cheaper, GPT-5 Nano or Hy4?
GPT-5 Nano is 4.5× cheaper than Hy4 on a typical 3:1 input/output mix.
GPT-5 Nano vs Hy4: which has a bigger context window?
GPT-5 Nano: 400,000 tokens. Hy4: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-5 Nano ≈ $300.00, Hy4 ≈ $1,459.
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