Gemma4 Works Better as the Main Coder
d4mations · reddit · 2026-07-18
The author shared their experience swapping models within a multi-agent coding workflow:
- For the past month, a quantized Qwen 27B was used as the primary coding agent, with GPT-5.5 acting as the orchestrator.
- However, on a medium-complexity project, frequent iterative changes failed to fix simple bugs, leading to deep frustration.
- The author then switched to Gemma 4 31B as the main coding agent, reassigned Qwen 27B to QA/Reviewer, and allocated 35B to ops, security, and research roles.
- Following the switch, multiple bugs were quickly resolved, and the project was back on track within a day, resulting in a much more satisfying experience.
The author cautions that this might not be a definitive long-term conclusion and could just be a streak of good luck. However, their current takeaway is that Qwen is better suited for reviewing/QA, while Gemma excels as the primary coder.
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