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DeepSeek: DeepSeek V3.2 vs Qwen: Qwen3.5 397B A17B: Coding Performance with 10 Evaluators

We analyze the Coding Performance with 10 Evaluators, comparing the efficiency of DeepSeek: DeepSeek V3.2 against the high-performance Qwen: Qwen3.5 397B A17B.

DeepSeek: DeepSeek V3.2

4.3

preference score

vs

Qwen: Qwen3.5 397B A17B

5.7

preference score

Judges ranked the responses in this Run against each other; the rank is mapped onto a 0–10 scale. It shows which response was preferred, not how good either one is — and it is not a percentage, a pass rate, or a check that the output was correct.

Sample size for this comparison was not recorded. Treat it as directional.

Evidence clarification: this article predates recorded sample provenance. Treat its conclusions as claims about the displayed examples; they do not establish general model superiority, verified correctness, or production suitability.

Key Findings

Top PerformerQwen: Qwen3.5 397B A17B

Ranked #1 with an overall score of 5.68.

Best ValueDeepSeek: DeepSeek V3.2

Offers significant cost savings with a total cost of $0.000447.

Instructional QualityQwen: Qwen3.5 397B A17B

Scored higher in both accuracy and instruction following criteria.

Specifications

SpecDeepSeek: DeepSeek V3.2Qwen: Qwen3.5 397B A17B
Providerdeepseekqwen
Context Length164K262K
Input Price (per 1M tokens)$0.27$0.55
Output Price (per 1M tokens)$0.40$3.50
Max Output Tokens65,536235,929
Tierstandardadvanced

Our Verdict

Qwen: Qwen3.5 397B A17B is the superior model for coding tasks, consistently outperforming in both accuracy and instruction adherence. While DeepSeek: DeepSeek V3.2 is significantly more cost-effective, the performance edge of the Qwen model makes it the preferred choice for complex development workflows where precision is paramount.

Overview

In the rapidly evolving landscape of Large Language Models, choosing the right architecture for software development tasks is critical. This analysis focuses on the DeepSeek: DeepSeek V3.2 vs Qwen: Qwen3.5 397B A17B comparison, specifically evaluating their Coding Performance with 10 Evaluators. By utilizing PeerLM’s comparative ranking methodology, we provide insight into how these models handle complex coding instructions and logical accuracy.

Benchmark Results

The comparative evaluation reveals a clear distinction in performance tiers. Qwen: Qwen3.5 397B A17B secures the top rank, demonstrating superior capability in handling coding-related prompts compared to DeepSeek: DeepSeek V3.2.

ModelOverall ScoreAccuracyInstruction Following
Qwen: Qwen3.5 397B A17B5.685.685.68
DeepSeek: DeepSeek V3.24.324.324.32

Criteria Breakdown

Our evaluation focused on two primary pillars: Accuracy and Instruction Following. In coding contexts, these criteria are non-negotiable. The 1.36 point score spread indicates that while both models are competent, the Qwen architecture provides a more robust and reliable output for complex programming tasks. The evaluators consistently preferred the Qwen output, noting higher precision in syntax and logical structure.

Cost & Latency

Performance often comes with a trade-off in resource consumption. The following table breaks down the economic impact of choosing between these two models for your development pipeline:

ModelTotal Cost (USD)Cost per Output TokenAvg Completion Tokens
Qwen: Qwen3.5 397B A17B$0.025549$0.0023742691
DeepSeek: DeepSeek V3.2$0.000447$0.000764146

As shown, DeepSeek: DeepSeek V3.2 is significantly more cost-effective, making it an attractive option for high-volume, lower-complexity coding tasks. Conversely, Qwen: Qwen3.5 397B A17B represents a premium investment, generating significantly longer and more detailed responses, which often correlates with its higher ranking in quality.

Use Cases

  • DeepSeek: DeepSeek V3.2: Ideal for rapid prototyping, automated unit test generation, and environments where cost-per-token is a primary constraint.
  • Qwen: Qwen3.5 397B A17B: Best suited for complex architectural design, debugging legacy codebases, and scenarios where maximum accuracy and instruction adherence are mandatory, regardless of cost.

Verdict

The comparison between DeepSeek: DeepSeek V3.2 vs Qwen: Qwen3.5 397B A17B highlights a classic performance-versus-efficiency trade-off. Qwen: Qwen3.5 397B A17B is the clear winner for high-stakes coding performance, offering superior accuracy at a higher cost. For teams prioritizing budget-friendly, high-velocity coding assistance, DeepSeek: DeepSeek V3.2 remains a powerful and incredibly efficient alternative.

Backed by real data

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See every response, score, and evaluator judgment behind this comparison. All data from PeerLM's blind evaluation pipeline.

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Methodology

Evaluated using PeerLM's blind evaluation pipeline with 4 responses per model across 2 criteria.