Model Comparison

Qwen2.5 Instruct 72B
vs. Qwen3.5 397B A17B (Non-reasoning)

Comparing 2 AI models · 12 benchmarks · Alibaba

Recommended Pick

Alibaba logoQwen3.5 397B A17B (Non-reasoning)10 metric wins

Strongest on: Throughput, Reasoning, Intelligence

Best Value

Alibaba logo

Qwen2.5 Instruct 72B

100.0 value score

27.5 reasoning / $0.48/1M

Lowest Price

Alibaba logo

Qwen2.5 Instruct 72B

$0.47/1M input price

Best Reasoning

Alibaba logo

Qwen3.5 397B A17B (Non-reasoning)

45.6 reasoning score

Blends available reasoning benchmarks

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Differences That Matter

Best value

Qwen2.5 Instruct 72B has the strongest quality-to-price mix at 100.0 out of 100 value points.

Price gap

Qwen2.5 Instruct 72B is 1.3x cheaper on input tokens than Qwen3.5 397B A17B (Non-reasoning).

Reasoning gap

Qwen3.5 397B A17B (Non-reasoning) leads Qwen2.5 Instruct 72B by 18.1 points on reasoning.

Top-pick rationale

Qwen3.5 397B A17B (Non-reasoning) wins 10 measurable categories, including Throughput, Reasoning, Intelligence, GPQA.

Live compare

Response Face-Off

Run one prompt through the selected models and compare response quality with live speed and cost context.

Alibaba logo

Qwen2.5 Instruct 72B

Alibaba

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting
Alibaba logo

Qwen3.5 397B A17B (Non-reasoning)

Alibaba

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting

Which answer was more useful?

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Full Comparison

Metric
Alibaba logoQwen2.5 Instruct 72B
Alibaba
Top Pick
Alibaba logoQwen3.5 397B A17B (Non-reasoning)
Alibaba
Pricing per 1M tokens
Input Cost$0.47/1M$0.60/1M
Output Cost$0.49/1M$3.60/1M
Blended (3:1)$0.48/1M$1.35/1M
Specifications
OrganizationAlibabaAlibaba
Release DateSep 19, 2024Feb 16, 2026
Performance & Speed
Throughput61.4 tok/s
TTFT1951ms
Latency1951ms
Composite Indices
Value Score100.058.9
Reasoning Score27.545.6
Intelligence9.632.0
Math14.0
Standard Benchmarks
GPQA49.1%86.1%
MMLU Pro72.0%
HLE4.2%18.8%
LiveCodeBench27.6%
MATH 50085.8%
AIME 202514.0%
AIME (Original)16.0%
SciCode26.7%41.1%
LCR20.3%58.0%
IFBench36.9%51.6%
TAU-bench v234.5%83.9%
TerminalBench Hard4.5%35.6%

Key Takeaways

Qwen2.5 Instruct 72B offers the best value at $0.47/1M,making it ideal for high-volume applications and cost-conscious projects.

Qwen3.5 397B A17B (Non-reasoning) has the strongest reasoning profile with a 45.6 reasoning score,combining the available reasoning-heavy benchmarks.

All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.

When to Choose Each Model

Alibaba logo

Qwen2.5 Instruct 72B

  • Cost-sensitive applications
  • High-volume processing
Alibaba logo

Qwen3.5 397B A17B (Non-reasoning)

  • Complex reasoning tasks
  • Research & analysis