Developer pen-tests app with DeepSeek v4.1 Flash defense model for under $10 a day

msg · x · 2026-10-28

Matthew Berman called DeepSeek v4.1 Flash the best open-weights model available. Developer @msg responded that he's been using its defense version via Inference.net to pen-test a new app he's building — running all day for under $10, highlighting the model's cost efficiency.

Related event: DeepSeek v4.1 Flash Hailed as Best Open-Weight Model(4 posts)→

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