Is Bigger Better? EVERY Qwen 3.5 Local AI Compared - 397B vs 122B vs 35B vs 27B 🧐

Is Bigger Better? EVERY Qwen 3.5 Local AI Compared - 397B vs 122B vs 35B vs 27B 🧐

🎙 xCreate 👥 26K 📅 February 26, 2026 ⏱ 23 min 👁 46K 📄 expert opinion 🧭 2026-09-09
Available in: English (current) Français

Keywords

Qwen-3.5local LLMmodel comparisonquantizationinference speed

Summary

The video presents a thorough comparison of the newly released Qwen 3.5 model family, focusing on local execution. The host tests four sizes: a massive 397B parameter model with 17B active parameters, a 122B parameter model, a 35B parameter model, and a 27B parameter model, which according to benchmarks outperforms its larger siblings. Using an M3 Ultra Mac Studio with 512GB RAM, the host runs each model through a complex procedural world generation prompt, a logical conundrum (car wash question), code generation, and tool-calling scenarios. The results show that larger models generally produce better visual output and fewer runtime errors, but even small models like the 27B deliver impressive quality and intelligence. The video highlights the trade-offs between performance and memory footprint, emphasizing the importance of quantization and system memory. The host also demonstrates the new filter feature in the Inferencer app that automatically hides models too large for a given system. The overall takeaway is that Qwen 3.5 offers a versatile family of open-weight models suitable for various hardware constraints, with the 27B being a standout for its size-to-intelligence ratio.

181 words

Critical Evaluation

Value of the Information & Strength of the Argument

The video provides valuable practical insights into running large language models locally, offering concrete performance data on token generation speeds, memory usage, and output quality across multiple model sizes. The argumentation is based on direct testing and emphasizes reproducibility, as the host shares specific model versions and quantizations. However, the reasoning is largely observational and lacks a rigorous experimental design, with occasional reliance on anecdotal comparisons and personal opinions. The discussion of benchmarks from external sources adds some credibility, but the host himself notes inconsistencies in the aggregated rankings. Overall, the content is informative for enthusiasts and practitioners seeking guidance on selecting a model for local deployment.

Scientific Rigor, Source Quality, Title Accuracy

The scientific rigor is moderate: while the host conducts real-world tests and references external benchmarks, the methodology is not fully documented and the tests are not repeated under controlled conditions. The sources cited include the Inferencer app, Hugging Face model repository, and companion videos, which provide context but no formal references. The title accurately matches the content, as the video explicitly compares the four model sizes. The description includes affiliate links and a sponsorship, which is disclosed but does not interfere with the technical evaluation. The audience comments are overwhelmingly positive, praising the depth and clarity of the review, with a few suggesting additional tests for smaller models.

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Title / Content Match

The title accurately reflects the content, which systematically compares four different parameter sizes of the Qwen 3.5 family in a local deployment context.

Quality & Reliability

7/10

The video provides a comprehensive hands-on comparison of Qwen 3.5 models with detailed real-world tests on a Mac Studio, but the methodology is informal, relying on anecdotal observations and limited benchmarks rather than a systematic or peer-reviewed approach.

Key Moments

Cited Sources

Concurring Sources

External References

Contribution & Novelties

The video contributes a practical, hands-on comparison of the Qwen 3.5 model family, demonstrating that smaller models like the 27B can rival or exceed larger ones in specific tasks, while also highlighting memory constraints. The introduction of a memory filter in the Inferencer app adds practical value for users selecting models. The original contribution lies in the direct benchmarking of multiple quantizations and the emphasis on real-world usability.

Pour aller plus loin :

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Radar Profile

The radar profile shows a balanced performance with slightly higher scores in quantity of information and technical detail, but lower in rigor and reliability, reflecting the informal nature of the tests. The strengths lie in practical insights and breadth, while weaknesses are in methodology and formal validation.

Reliability 7/10

💬 Sur les 30 commentaires analysés, le climat est très positif, les téléspectateurs exprimant leur enthousiasme et leur gratitude pour les tests détaillés, avec quelques demandes de couverture de modèles plus petits et des questions techniques.