Hy4 vs Seed 1.6 Flash
Price, context window & benchmark comparison
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Verdict: Seed 1.6 Flash is 4.8× cheaper than Hy4 on a typical 3:1 input/output mix. Hy4 has the larger context window (1M vs 262K).
| Hy4 | Seed 1.6 Flash | |
|---|---|---|
| Input price / 1M | $0.42 | $0.075 |
| Output price / 1M | $1.25 | $0.30 |
| Blended price (3:1) | $0.63 | $0.13 |
| Cached input / 1M | $0.021 | — |
| Context window | 1M | 262K |
| Max output | 66K | 33K |
| 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 | 2026-11-04 | 2025-12-23 |
| Retirement | — | 2026-11-11 |
Cost calculator
FAQ
Which is cheaper, Hy4 or Seed 1.6 Flash?
Seed 1.6 Flash is 4.8× cheaper than Hy4 on a typical 3:1 input/output mix.
Hy4 vs Seed 1.6 Flash: which has a bigger context window?
Hy4: 1,048,576 tokens. Seed 1.6 Flash: 262,144 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Hy4 ≈ $1,459, Seed 1.6 Flash ≈ $300.00.
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