DeepSeek V4.1 Flash 1017 wins over a longtime closed-source-only user: fast, cheap, reliable
_bachrc · reddit · 2026-11-02
A Reddit user posted a detailed appreciation thread for DeepSeek V4.1 Flash 1017, saying it's the first open-weights model he can fully rely on.
His journey:
- Long believed only closed-source models were dependable; open models hallucinated too much
- GLM 5.X impressed him but was slow and costly, and the Z.AI coding plan was inconsistent
- DeepSeek Flash 4.1 was fast and cheap but overconfident and unreliable on hard tasks
- The 1017 iteration changed everything: reliable across all tasks, extremely fast even at max effort, and very cheap
Using Hermes desktop with Kagi MCP for web search, he reports zero hallucinations so far and no longer needs any closed-source model.
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