Model Comparison
Qwen3.8 Max
vs. Step 3.5 Flash 2603
Comparing 2 AI models · 0 benchmarks · Alibaba, StepFun
Recommended Pick
StStep 3.5 Flash 26037 metric winsStrongest on: Value, Input price, Output price
Best Value
Step 3.5 Flash 2603
100.0 value score
26.5 reasoning / $0.15/1M
Lowest Price
Step 3.5 Flash 2603
$0.10/1M input price
Best Reasoning
Qwen3.8 Max
58.1 reasoning score
Blends available reasoning benchmarks
Best for Coding
Qwen3.8 Max
71.8 coding index
Differences That Matter
Best value
Step 3.5 Flash 2603 has the strongest quality-to-price mix at 100.0 out of 100 value points.
Price gap
Step 3.5 Flash 2603 is 20x cheaper on input tokens than Qwen3.8 Max.
Speed gap
Step 3.5 Flash 2603 generates about 5.3x as many tokens per second as Qwen3.8 Max.
Reasoning gap
Qwen3.8 Max leads Step 3.5 Flash 2603 by 31.6 points on reasoning.
Top-pick rationale
Step 3.5 Flash 2603 wins 7 measurable categories, including Value, 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.
Qwen3.8 Max
Alibaba
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Step 3.5 Flash 2603
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 | Al Qwen3.8 Max | Top Pick St Step 3.5 Flash 2603 |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $2.00/1M | $0.10/1M |
| Output Cost | $6.00/1M | $0.30/1M |
| Blended (3:1) | $3.00/1M | $0.15/1M |
| Specifications | ||
| Organization | Alibaba | StepFun |
| Release Date | Aug 3, 2026 | Apr 2, 2026 |
| Performance & Speed | ||
| Throughput | 38.8 tok/s | 205.0 tok/s |
| TTFT | 2500ms | 1060ms |
| Latency | 53990ms | 10810ms |
| Composite Indices | ||
| Value Score | 11.0 | 100.0 |
| Reasoning Score | 58.1 | 26.5 |
| Intelligence | 58.1 | 26.5 |
| Coding | 71.8 | — |
Key Takeaways
Step 3.5 Flash 2603 offers the best value at $0.10/1M,making it ideal for high-volume applications and cost-conscious projects.
Qwen3.8 Max has the strongest reasoning profile with a 58.1 reasoning score,combining the available reasoning-heavy benchmarks.
Qwen3.8 Max reaches a 71.8 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
Qwen3.8 Max
- Complex reasoning tasks
- Research & analysis
- Code generation
- Software development
Step 3.5 Flash 2603
- Cost-sensitive applications
- High-volume processing
