Model Comparison

Qwen3.5 9B (Reasoning)
vs. Step 5 Preview

Comparing 2 AI models · 0 benchmarks · Alibaba, StepFun

Recommended Pick

Step 5 Preview3 metric wins

Strongest on: Throughput, TTFT, Latency

Lowest Price

Qwen3.5 9B (Reasoning)

$0.14/1M input price

Differences That Matter

Price gap

Qwen3.5 9B (Reasoning) is 7.4x cheaper on input tokens than Step 5 Preview.

Speed gap

Step 5 Preview generates about 3.0x as many tokens per second as Qwen3.5 9B (Reasoning).

Top-pick rationale

Step 5 Preview wins 3 measurable categories, including Throughput, TTFT, Latency.

Live compare

Response Face-Off

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Qwen3.5 9B (Reasoning)

Alibaba

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Step 5 Preview

StepFun

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Full Comparison

Metric	Al Qwen3.5 9B (Reasoning) Alibaba	Top Pick St Step 5 Preview StepFun
Pricing per 1M tokens
Input Cost	$0.14/1M	$1.00/1M
Output Cost	$0.20/1M	$2.70/1M
Blended (3:1)	$0.15/1M	$1.43/1M
Specifications
Organization	Alibaba	StepFun
Release Date	Mar 2, 2026	Sep 18, 2026
Performance & Speed
Throughput	55.6 tok/s	169.4 tok/s
TTFT	2010ms	940ms
Latency	37990ms	12750ms
Composite Indices
Value Score	—	100.0
Reasoning Score	—	28.5
Intelligence	—	28.5