V4.1-Flash-1017 解读：MIT 开源权重、DeepSWE 77%、每任务约 0.2 美元
作者梳理官方数据：MIT 开源权重、输出更短让 agent 更省更快，DeepSWE 超 77%、每任务约 0.20 美元（旧 Flash 约 0.50），并提醒等第三方验证；Search/Fetch API 每千次 0.75 美元。
DeepSeek shipped V4.1-Flash-1017 today — MIT open weights, shorter outputs, faster agent runs. On their DeepSWE chart it clears 77% at ~$0.20/task (prior Flash ~$0.50). Vendor benches also put it ahead of Opus 5 and GPT-5.6 Sol on several coding/agent suites — wait for third-party before you rewrite the stack. The real ops story is the shorter outputs. Agent fleets burn money and time on verbose loops; a model that finishes with less text is a cost and latency lever, not just a benchmark bump. They also opened Search/Fetch APIs at $0.75/1k calls. Agents that can fetch will fetch a lot — budget the egress. https://huggingface.co/deepseek-ai/DeepSeek-V4.1-Flash-1017