Study: DeepSeek/GLM with custom harness matches Claude Code design quality
10/30/2026 — 10/30, 05:17·1 sources (all)·1 reports (all)
Key takeaways
- A Reddit user in LocalLLaMA says their custom agentic harness, Rivermark, matched Claude Code with Sonnet 5.5 in design quality across 112 s…
Background & analysis
On October 30, 2026, a Reddit user posted in the LocalLLaMA community claiming that their custom agentic harness Rivermark, paired with DeepSeek/GLM Flash models, matched the design quality of Claude Code + Sonnet 5.5 in a benchmark of 112 social, marketing, and print design requests. According to the post, some of the test requests included a brand kit, some provided a website reference for the brand, and others started from scratch. The poster noted that LLMs tend to be hit or miss for this type of design work compared with website and app design, where their skills are stronger. As of now, this claim rests on a single self-reported post, and there has been no independent reproduction or corroboration from other sources.
AI-generated from 1 reports · updated 13 hours ago
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Reports on this story headlines open the original
A Reddit user on LocalLLaMA claims that their custom agentic harness Rivermark matched the design quality of Claude Code + Sonnet 5.5 using DeepSeek/GLM Flash models across a benchmark of 112 social, marketing and print design requests. Some tests included a brand kit or a website reference.
Reddit · LocalLLaMAAI score 57
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