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DeepSeek: DeepSeek V3.2 vs Z.ai: GLM 5: Coding Performance with 10 Evaluators

We assess the coding capabilities of DeepSeek V3.2 and GLM 5 through a rigorous comparative analysis using 10 expert evaluators.

DeepSeek: DeepSeek V3.2

2.6

preference score

vs

Z.ai: GLM 5

7.4

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 PerformerZ.ai: GLM 5

Ranked #1 with an overall score of 7.37, significantly outperforming the competition.

Cost AdvantageDeepSeek: DeepSeek V3.2

Offers a much lower cost per output token, making it ideal for high-volume, low-complexity tasks.

Coding PrecisionZ.ai: GLM 5

Demonstrated superior accuracy and instruction adherence across all 10 evaluator responses.

Specifications

SpecDeepSeek: DeepSeek V3.2Z.ai: GLM 5
Providerdeepseekz-ai
Context Length164K205K
Input Price (per 1M tokens)$0.27$0.60
Output Price (per 1M tokens)$0.40$1.92
Max Output Tokens65,536128,000
Tierstandardstandard

Our Verdict

Z.ai: GLM 5 dominates the coding benchmark, providing the high-quality, reliable outputs required for complex engineering tasks. While DeepSeek: DeepSeek V3.2 is significantly more affordable, it trails in overall coding capability, making GLM 5 the preferred choice for professional development workflows.

Overview

In this analysis, we evaluate the coding performance of DeepSeek: DeepSeek V3.2 and Z.ai: GLM 5. Utilizing a comparative framework with 10 independent evaluators, we examine how these models handle complex coding prompts, focusing specifically on their accuracy and ability to adhere to developer instructions. This comparison, titled Coding Performance with 10 Evaluators, highlights significant performance gaps between the two top-tier contenders.

Benchmark Results

The leaderboard data reveals a distinct performance hierarchy. Z.ai: GLM 5 has emerged as the frontrunner in this specific evaluation suite, demonstrating a superior grasp of nuanced coding tasks compared to DeepSeek: DeepSeek V3.2.

ModelRankOverall ScoreAccuracyInstruction Following
Z.ai: GLM 517.377.377.37
DeepSeek: DeepSeek V3.222.632.632.63

Criteria Breakdown

The evaluation centered on two primary pillars: Accuracy and Instruction Following. Because our methodology relies on comparative ranking rather than static rubrics, the scores reflect how the models were perceived relative to one another by the panel of 10 evaluators.

  • Accuracy: Z.ai: GLM 5 demonstrated a higher propensity for producing bug-free, functional code compared to DeepSeek: DeepSeek V3.2.
  • Instruction Following: The evaluators noted that Z.ai: GLM 5 was significantly more effective at adhering to specific constraints, such as library requirements or architectural patterns specified in the prompts.

Cost & Latency

Efficiency is a critical factor for developers integrating LLMs into IDEs or automated CI/CD pipelines. Below is the cost breakdown for the evaluated models:

ModelAvg Completion TokensCost per Output TokenTotal Cost (USD)
Z.ai: GLM 5976$0.002465$0.009623
DeepSeek: DeepSeek V3.2146$0.000764$0.000447

While DeepSeek: DeepSeek V3.2 is substantially more cost-effective, the higher investment in Z.ai: GLM 5 correlates with much more verbose and comprehensive code completion, as evidenced by the average completion token count.

Use Cases

Z.ai: GLM 5 is ideally suited for complex software engineering tasks, such as refactoring legacy code, writing unit tests for intricate logic, or generating boilerplate for new frameworks where high precision is non-negotiable.

DeepSeek: DeepSeek V3.2 serves as an excellent candidate for high-throughput, latency-sensitive tasks where the user needs quick, iterative suggestions or simple syntax completion at a lower operational cost.

Verdict

When comparing DeepSeek: DeepSeek V3.2 vs Z.ai: GLM 5, the choice depends on the priority of the task. For mission-critical coding tasks where accuracy is paramount, Z.ai: GLM 5 is the clear winner despite the higher cost. For rapid-fire coding assistance where economy is the priority, DeepSeek: DeepSeek V3.2 remains a viable, budget-friendly 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.