Hy3 preview is $0.14 cheaper per 1M input tokens (68.5% lower; 3.17x difference).
API cost decision in 10 seconds
🔥Hy3 preview vs NewStep 3.7 Flash
Pick Hy3 preview when budget and context both matter.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Hy3 preview when budget and context both matter.
On the standard 1M input plus 500K output workload, Hy3 preview is estimated at $0.17 vs $0.77 for Step 3.7 Flash, saving $0.61 (78.3% lower).
Cost-first pickHy3 preview
Context-first pickHy3 preview
Sample savings$0.6178.3%
10x traffic gap$6.07
Hy3 preview is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $6.07. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Hy3 preview stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Hy3 preview | Step 3.7 Flash |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Hy3 preview | $0.42 | $1.57 |
| Balanced workload | 1M input + 1M output | Hy3 preview | $0.27 | $1.35 |
| Output-heavy chatbot | 1M input + 5M output | Hy3 preview | $1.11 | $5.95 |
Hy3 preview is $0.94 cheaper per 1M output tokens (81.7% lower; 5.48x difference).
Hy3 preview has 6.14K more context (1.02x larger).
Hy3 preview is $0.61 cheaper on the standard workload (78.3% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
Hy3 preview has the lower input price; Hy3 preview has the lower output price; Hy3 preview offers the larger context window. For the 1M input plus 500K output sample, Hy3 preview is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0.17 for Hy3 preview and $0.77 for Step 3.7 Flash.
Choose Hy3 preview when you care most about lower input-token price, lower output-token price, and larger context window.
Choose Step 3.7 Flash when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
- On the standard 1M input plus 500K output workload, Hy3 preview is estimated at $0.17 vs $0.77 for Step 3.7 Flash, saving $0.61 (78.3% lower).
- Hy3 preview is $0.61 cheaper on the standard workload (78.3% lower).
- Hy3 preview is $0.14 cheaper per 1M input tokens (68.5% lower; 3.17x difference).
- Hy3 preview is $0.94 cheaper per 1M output tokens (81.7% lower; 5.48x difference).
- Hy3 preview has 6.14K more context (1.02x larger).
| Feature | 🔥Hy3 preview (Tencent) | NewStep 3.7 Flash (StepFun) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.063 | $0.2 |
| Completion Price per 1M tokens | $0.21 | $1.15 |
| Sample Workload Cost 1M input + 500K output | $0.17 | $0.77 |
| Context Window | 262.14K | 256K |
| Release Date | ||
| Popularity | #1 | #101 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Hy3 preview | On the standard 1M input plus 500K output workload, Hy3 preview is estimated at $0.17 vs $0.77 for Step 3.7 Flash, saving $0.61 (78.3% lower). |
| High-volume input processing | Hy3 preview | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Hy3 preview | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Hy3 preview | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Step 3.5 Flash can replace Step 3.7 Flash when lower sample workload cost matters most: $0.24.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
- DeepSeek V4 Flash offers 1.05M context with $0.2 sample workload cost.
- MiMo-V2.5 offers 1.05M context with $0.28 sample workload cost.
- DeepSeek V4 Flash · DeepSeek · #2
- MiMo-V2.5 · Xiaomi · #3
- Claude Sonnet 4.6 · Anthropic · #4
- Claude Opus 4.7 · Anthropic · #5
Cheaper alternatives
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Open provider hubsTencent catalog
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