DeepSeek V4.1 Flash-1017 Lands, and the Local Crowd Races to Run It
Open weights under MIT, a 1M-token context and benchmark wins over GPT-5.6 Sol and Opus 5 on DeepSeek’s selected tests, at a fraction of the price.
DeepSeek’s new V4.1 Flash-1017 beats GPT-5.6 Sol and Opus 5 on selected coding and agent benchmarks at much lower token prices, @kimmonismus reports: DeepSWE 77.0 (vs 73.0 for Sol and 74.0 for Opus 5) and Automation-Bench 60.5, though Opus 5 still leads Terminal-Bench 4.0 at 51.8 to 42.3. Listed API pricing is $0.15 / $0.60 per million uncached input/output tokens off-peak, against $4 / $20 for GPT-5.6 Sol and $5 / $25 for Claude Opus 5.
Within hours, @MiaAI_lab had it running on stacked DGX Sparks using DeepSeek’s original quant: 87 tok/s on prose single-stream and 163 tok/s across four concurrent streams on 4x Sparks. Her 100-HTML-file creativity test found “good results, but it’s not the BEST,” and she is not yet confident it beats GLM 5.3 Flash as the pick for two Sparks.