Model Comparison
Qwen3 Coder 30B A3B Instruct
vs. Step 3.5 Flash 2603
Comparing 2 AI models · 0 benchmarks · Alibaba, StepFun
Recommended Pick
AlQwen3 Coder 30B A3B Instruct3 metric winsStrongest on: Throughput, TTFT, Latency
Lowest Price
Step 3.5 Flash 2603
$0.10/1M input price
Differences That Matter
Price gap
Step 3.5 Flash 2603 is 1.9x cheaper on input tokens than Qwen3 Coder 30B A3B Instruct.
Speed gap
Qwen3 Coder 30B A3B Instruct generates about 1.3x as many tokens per second as Step 3.5 Flash 2603.
Top-pick rationale
Qwen3 Coder 30B A3B Instruct wins 3 measurable categories, including Throughput, TTFT, Latency.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Qwen3 Coder 30B A3B Instruct
Alibaba
TTFT
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Time
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tok/s
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Tokens
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Cost
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Step 3.5 Flash 2603
StepFun
TTFT
—
Time
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tok/s
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Tokens
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Cost
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Which answer was more useful?
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Servers in Germany & Finland. Operated by a German company under the GDPR, DPA available, ISO 27001-certified data centres.
Full Comparison
| Metric | Top Pick Al Qwen3 Coder 30B A3B Instruct | St Step 3.5 Flash 2603 |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.19/1M | $0.10/1M |
| Output Cost | $0.77/1M | $0.30/1M |
| Blended (3:1) | $0.33/1M | $0.15/1M |
| Specifications | ||
| Organization | Alibaba | StepFun |
| Release Date | Jul 31, 2025 | Apr 2, 2026 |
| Performance & Speed | ||
| Throughput | 210.4 tok/s | 165.7 tok/s |
| TTFT | 1020ms | 3440ms |
| Latency | 1020ms | 15510ms |
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.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Qwen3 Coder 30B A3B Instruct
- General-purpose AI
- Versatile applications
Step 3.5 Flash 2603
- Cost-sensitive applications
- High-volume processing
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