TLDRocket
18 October 2026
DeepSeek kept one foot on the gas. Its updated DeepSeek-V4.1-Flash-1017 went live across web, mobile, and the existing deepseek-flash API model ID, with the same pricing while it improves performance: DeepSWE v1.1 resolution rises to 77% of tasks from 74.2%, and DeepSeek says it finishes work faster. It also bundled something more practical than another benchmark brag—an accompanying developer search API backed by its own engine, with Terminal-Bench 4.0 moving from 31.2 to 42.3 and billing that stays at $0.30 per million input tokens and $1.20 per million output tokens. The subtext for builders is familiar: as agent workflows spread, retrieval cost and reliability matter as much as raw model IQ.
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