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Meta: Llama 4 Maverick vs Qwen: Qwen3.5 397B A17B: Coding Performance with 10 Evaluators

In our latest evaluation of Coding Performance with 10 Evaluators, we compare Meta: Llama 4 Maverick vs Qwen: Qwen3.5 397B A17B to determine the superior model for complex programming tasks.

Meta: Llama 4 Maverick

2.0

preference score

vs

Qwen: Qwen3.5 397B A17B

8.0

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 RankQwen: Qwen3.5 397B A17B

Secured the #1 spot in our comparative coding evaluation.

Cost EfficiencyMeta: Llama 4 Maverick

Offers significantly lower cost per request for lightweight coding tasks.

Performance LeadQwen: Qwen3.5 397B A17B

Outperformed in accuracy and instruction following with a score of 7.95.

Specifications

SpecMeta: Llama 4 MaverickQwen: Qwen3.5 397B A17B
Providermeta-llamaqwen
Context Length1.0M262K
Input Price (per 1M tokens)$0.19$0.55
Output Price (per 1M tokens)$0.65$3.50
Max Output Tokens16,384235,929
Tierstandardadvanced

Our Verdict

Qwen: Qwen3.5 397B A17B is the clear winner for complex coding tasks, offering superior accuracy and instruction-following capabilities. While Meta: Llama 4 Maverick provides a much lower cost profile, it lacks the depth required for high-level programming performance in this benchmark. Developers should prioritize the Qwen model for mission-critical code generation.

Overview

In this benchmark analysis, we evaluate the performance of two prominent large language models: Meta: Llama 4 Maverick and Qwen: Qwen3.5 397B A17B. This specific test focuses on Coding Performance with 10 Evaluators, utilizing a comparative ranking method to assess how these models handle real-world programming challenges and complex instruction sets.

Benchmark Results

The evaluation reveals a significant performance gap between the two models. Qwen: Qwen3.5 397B A17B emerged as the clear leader, securing the top rank across the board.

ModelRankOverall ScoreAccuracyInstruction Following
Qwen: Qwen3.5 397B A17B17.957.957.95
Meta: Llama 4 Maverick22.052.052.05

Criteria Breakdown

The assessment utilized two primary criteria: Accuracy and Instruction Following. In the context of Coding Performance with 10 Evaluators, these metrics are critical for determining whether a model can generate syntactically correct, functional, and logically sound code that adheres strictly to developer constraints.

  • Accuracy: Qwen: Qwen3.5 397B A17B demonstrated a high degree of precision in code generation, effectively outperforming the Llama variant by a score spread of 5.9 points.
  • Instruction Following: When tasked with complex multi-step coding instructions, the Qwen architecture proved more resilient in maintaining adherence to the prompt requirements throughout the entire response cycle.

Cost & Latency

Understanding the economic trade-offs is essential when integrating these models into a production coding pipeline. Below is a breakdown of the cost structure observed during this benchmark run.

ModelTotal Cost (USD)Cost per Output TokenAvg Completion Tokens
Qwen: Qwen3.5 397B A17B$0.025549$0.0023742,691
Meta: Llama 4 Maverick$0.000358$0.00094295

While Meta: Llama 4 Maverick is significantly more cost-effective, its performance in this specific coding suite suggests it may be better suited for lightweight tasks rather than complex architectural generation.

Use Cases

Qwen: Qwen3.5 397B A17B is the recommended choice for high-stakes software development, such as complex refactoring, writing exhaustive test suites, and handling large-scale codebases where reasoning depth is paramount. Meta: Llama 4 Maverick offers a highly efficient alternative for simple script generation, rapid prototyping, or tasks where latency and cost per token are the primary constraints over absolute coding precision.

Verdict

When comparing Meta: Llama 4 Maverick vs Qwen: Qwen3.5 397B A17B, the data clearly favors Qwen for professional coding applications. Its ability to provide deeper, more accurate, and instruction-compliant code makes it the superior tool for developers requiring reliable AI assistance.

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.