Model Comparison
Qwen3.5 Omni Plus
vs. Step 3.7 Flash
Comparing 2 AI models · 0 benchmarks · Alibaba, StepFun
Recommended Pick
AlQwen3.5 Omni Plus5 metric winsStrongest on: Throughput, TTFT, Latency
Best Value
Step 3.7 Flash
100.0 value score
30.9 reasoning / $0.44/1M
Lowest Price
Step 3.7 Flash
$0.20/1M input price
Best Reasoning
Qwen3.5 Omni Plus
31.3 reasoning score
Blends available reasoning benchmarks
Best for Coding
Step 3.7 Flash
39.6 coding index
Differences That Matter
Best value
Step 3.7 Flash has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Step 3.7 Flash is 2.0x cheaper on input tokens than Qwen3.5 Omni Plus.
Speed gap
Qwen3.5 Omni Plus generates about 1.2x as many tokens per second as Step 3.7 Flash.
Reasoning gap
Qwen3.5 Omni Plus leads Step 3.7 Flash by 0.4 points on reasoning.
Top-pick rationale
Qwen3.5 Omni Plus wins 5 measurable categories, including Throughput, TTFT, Latency, Reasoning.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Qwen3.5 Omni Plus
Alibaba
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Step 3.7 Flash
StepFun
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Secure AI Chat made in Europe
Processing terms vary by selected model. Review the current Privacy Policy and DPA before using sensitive data.
OpenAI-compatible inference
Choose from the current model catalog. Processing terms vary by selected model and service.
Full Comparison
| Metric | Top Pick Al Qwen3.5 Omni Plus | St Step 3.7 Flash |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.40/1M | $0.20/1M |
| Output Cost | $4.80/1M | $1.15/1M |
| Blended (3:1) | $1.50/1M | $0.44/1M |
| Specifications | ||
| Organization | Alibaba | StepFun |
| Release Date | Mar 30, 2026 | May 29, 2026 |
| Performance & Speed | ||
| Throughput | 126.8 tok/s | 105.7 tok/s |
| TTFT | 2120ms | 2730ms |
| Latency | 2120ms | 21660ms |
| Composite Indices | ||
| Value Score | 29.5 | 100.0 |
| Reasoning Score | 31.3 | 30.9 |
| Intelligence | 31.3 | 30.9 |
| Coding | — | 39.6 |
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.
Qwen3.5 Omni Plus has the strongest reasoning profile with a 31.3 reasoning score,combining the available reasoning-heavy benchmarks.
Step 3.7 Flash reaches a 39.6 coding index,making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Qwen3.5 Omni Plus
- Complex reasoning tasks
- Research & analysis
Step 3.7 Flash
- Cost-sensitive applications
- High-volume processing
- Code generation
- Software development
