Claude Mythos 5.2 Fast vs Hy4
Price, context window & benchmark comparison
VS
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Verdict: Hy4 has the larger context window (1M vs —).
| Claude Mythos 5.2 Fast | Hy4 | |
|---|---|---|
| Input price / 1M | — | $0.42 |
| Output price / 1M | — | $1.25 |
| Blended price (3:1) | — | $0.63 |
| Cached input / 1M | — | $0.021 |
| Context window | — | 1M |
| Max output | — | 66K |
| Intelligence index | — | 34.6 |
| Coding index | — | — |
| Providers | — | 1 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | Yes |
| Reasoning | No | Yes |
| Tool calling | No | Yes |
| Released | 2026-11-09 | 2026-11-04 |
| Retirement | — | — |
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FAQ
Which is cheaper, Claude Mythos 5.2 Fast or Hy4?
Claude Mythos 5.2 Fast and Hy4 are priced identically.
Claude Mythos 5.2 Fast vs Hy4: which has a bigger context window?
Claude Mythos 5.2 Fast: — tokens. Hy4: 1,048,576 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Mythos 5.2 Fast ≈ $0, Hy4 ≈ $1,459.
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