Reddit User Says DeepSeek V4.1 Flash Used $20 on Server Sizing
Lopsided_Feedback_81 reported that DeepSeek V4.1 Flash ran for an hour, spawned 40 subagents and cost $20 on a client server-sizing task before the author stopped it without a useful result. The author, who says they run a research and analytics business, contrasted this with a previous V4 Flash workflow that cost $15 to research 200 companies and make a 1,000-page report. The author said they used the latest DeepSeek Harness; prompts and agent settings were not shared.
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In the repliesCommenters offered different experiences. InnerGovernment4738 reported poor V4.1 results on pneumatics and hydraulics. HandLock__ and Ranmark favored GLM 5.3 Flash for maturity or token use in their own tasks. NickWheels, by contrast, said V4.1 Flash worked well when routed to Codex for development tasks. None supplied a matched test.
DeepSeek V4.1 Flash; latest DeepSeek Harness per author. Exact endpoint/provider, parameters, effort setting and subagent configuration are unknown.
Personal reports from one r/DeepSeek thread; costs and outcomes are unverified and do not constitute a controlled comparison.