DeepSeek V4.1 Flash beats Haiku 5.5 as a cheap, fast classifier with no guardrails

adam_karvonen · x · 2026-10-29

The author says DeepSeek V4.1 Flash has become his go-to classifier/analysis model: smart enough, fast, very cheap, and free of distillation guardrail concerns. In a screenshot, the same v5 prompt run over 200 claims shows V4.1 Flash clearly outperforming Haiku 5.5, so he recommends sticking with it.

Related event: DeepSeek's new model hailed by community as best open-weights, cheap and capable(6 posts)→

Original post →

More from Models

Models channel →