StepFun Step 5 Preview vs Tencent Hy4 preview
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- Hy4 preview is 1.1× cheaper at a typical mix of 3 input tokens per output token.
- Both accept prompts up to 1M tokens.
- Step 5 Preview is the newer model (released 2026-10-08).
| Step 5 Preview | Hy4 preview | |
|---|---|---|
| Vendor | StepFun | Tencent |
| Released | 2026-10-08 | 2026-08-28 |
| Input / 1M | $1.00 | $0.834 |
| Output / 1M | $2.70 | $2.50 |
| Cached input / 1M | $0.10 | $0.042 |
| Blended / 1M (3:1) | $1.43 | $1.25 |
| Context | 1M | 1M |
| Max output | 64K | 64K |
| Accepts | text, image, video | text |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 2 | 7 |
| Cheapest provider, output | $2.70 | $2.50 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | — | — |
Cost calculator
Step 5 Preview
$101 per month$3.35 per day
Hy4 preview
$87.55 per month$2.92 per day
Hy4 preview saves $12.95 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
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