Comparing ASCII Chart Generation Across Multiple Models

himanshustwts · x · 2026-07-17

A developer on X shared the performance differences among various LLMs when generating ASCII charts. The test required models to draw a PPO-style reinforcement learning loop diagram, revealing that Kimi K3, Fable 5, and Opus all outperformed GPT-5.6 on this task. Notably, Kimi K3 and Fable 5 demonstrated superior structural rendering capabilities.

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