Model Comparison
Step 3.7 Flash
vs. Hy4
Comparing 2 AI models · 0 benchmarks · StepFun, Tencent
Recommended Pick
StStep 3.7 Flash3 metric winsStrongest on: Input price, Output price, Blended price
Lowest Price
Step 3.7 Flash
$0.20/1M input price
Differences That Matter
Price gap
Step 3.7 Flash is 4.2x cheaper on input tokens than Hy4.
Top-pick rationale
Step 3.7 Flash wins 3 measurable categories, including Input price, Output price, Blended price.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Step 3.7 Flash
StepFun
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Hy4
Tencent
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
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Full Comparison
| Metric | Top Pick St Step 3.7 Flash | Te Hy4 |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.20/1M | $0.83/1M |
| Output Cost | $1.15/1M | $2.50/1M |
| Blended (3:1) | $0.44/1M | $1.25/1M |
| Specifications | ||
| Organization | StepFun | Tencent |
| Release Date | May 29, 2026 | Nov 3, 2026 |
| Performance & Speed | ||
| Throughput | 213.7 tok/s | — |
| TTFT | 2490ms | — |
| Latency | 11850ms | — |
| Composite Indices | ||
| Value Score | — | 100.0 |
| Reasoning Score | — | 34.6 |
| Intelligence | — | 34.6 |
Key Takeaways
Step 3.7 Flash offers the best value at $0.20/1M,making it ideal for high-volume applications and cost-conscious projects.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Step 3.7 Flash
- Cost-sensitive applications
- High-volume processing
Hy4
- General-purpose AI
- Versatile applications
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