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一 | 近日，全球模型聚合平台OpenRouter最新周度Token（词元）调用榜单出现历史性变化：前五名全部为国产大模型，DeepSeek V4 Flash位居榜首，小米MiMo V2.5、腾讯Hy3、DeepSeek V4 Pro、智谱GLM5.2依次位列第二至第五名。 A "super fog" in Louisiana has caused a multi-car pileup on Interstate 55 near New Orleans, Louisiana, after severely lowering visibility, according to police.The crash, involving dozens of cars, occurred on Monday morning due to heavy fog conditions, according to Louisiana State Police. A long stretch of Interstate 55, a 24-mile-long highway over Lake Pontchartrain near New Orleans, is expected to be closed "for the foreseeable future," police said.Interstate 10 and Interstate 310 were also closed as a result of the crash, police said. Louisiana Gov. John Bel Edwards confirmed the accident in a statement Monday that there were fatalities in the crash, but did not say how many people were killed or injured.For hours after the crash, emergency crews worked to clear debris from both northbound and southbound lanes, according to state police.The super fog was caused by smoke from marsh fires burning in the region combined with dense fog developing in the area early Monday morning bringing extremely low visibility. In some spots, visibility was near zero, creating dangerous driving conditions.Super fogs typically form when condensed water vapor mixes with the smoke and moisture released from damp organic material smoldering from a nearby fire, such as brush, leaves and trees, according to the National Weather Service. Visibility can be lowered to less than 10 feet as a result, according to the NWS.This has been occurring in the region over the past several mornings, with the location of the densest fog and most dangerous conditions varying day to day, forecasts show.Super fogs can be especially dangerous when they develop near and over highways. The localized nature of the weather phenomenon means that visibility conditions can worsen rapidly within a very short distance, which can lead to a hazardous combination of sudden low to near-zero visibility and vehicles traveling at a high speed on a highway.The very limited visibility then hinders a driver's ability to react to changing conditions on a roadway.The National Weather Service issued a dense fog advisory for much of southeastern Louisiana on Monday morning, including from Baton Rouge to New Orleans.Over the past several days, the National Weather Service has been warning of the threat of dense fog during the early mornings in the region that would be worsened in some areas by nearby marsh fires. State police advised drivers to use their low-beam headlights if they can't see at least 500 feet in front of them.The fog dissipated by mid Monday morning, and all fog alerts have since been canceled.While areas of smoke will continue to be possible in the area as various marsh fires continue to burn, fog is not forecast to be a major issue Monday night, as weather conditions will be less favorable for fog development.Morning fog is not uncommon this time of the year for the region, but more than 86% of the state is currently battling extreme drought conditions, which is elevating fire danger. This could mean more instances of super fog in the coming days and weeks as cooler temperatures settle in, but the drought and wildfire risk persist.In addition, devastating drought and wildfire conditions continue to impact Louisiana. More than 60% of the state is now categorized at exceptional drought, the highest category of concern, according to the U.S. Drought Monitor. Just three months ago, 0% of the state was listed under exceptional drought."The combination of wildfire smoke and dense fog is dangerous, and I want to encourage all Louisianans in affected areas to take extreme caution when traveling," Edwards said in a statement.State troopers are working to notify families and investigate the exact cause of the crash, according to state police.It is unclear how many fatalities and injuries occurred as a result of the crash. The St. John the Baptist Parish Sheriff's Office directed media requests to Louisiana State Police.Additional information was not immediately available. Louisiana State Police did not immediately reply to ABC News' request for comment.。DeepSeek V4 Flash正式版上线后，单日使用量和合作平台新订阅用户均实现约30%的增长，凭借突出的性价比优势，扭转全球AI开发者的使用格局。 DeepSeek为何登顶全球调用榜？这体现了我国大模型产业怎样的竞争优势？科技日报记者就此采访了有关专家。 第一问：DeepSeek为何登顶全球调用榜？ 对于“登顶”原因，中国电子信息产业发展研究院未来产业研究中心人工智能研究室主任钟新龙表示，直接原因是DeepSeek V4 Flash正式版的上线。 他介绍，该正式版将此前发布的预览版的能力验证转化为稳定的商用服务，上线过程中，DeepSeek与合作平台同步推进旧有版本用户的迁移以及旧接口停用，使用户调用在短期内集中到该正式版。
二 | 同时，极致性价比叠加智能体需求放大了该正式版的用户需求。数据显示，该版本官方价格为每百万Token输入1元、输出2元，且智能体应用场景Token消耗量大，市场需求水涨船高。据报道，该版本上线后，单日使用量和合作平台新订阅用户均增长30%，说明它的发布既提高了存量用户的使用频次，也带来了新增客户的入场。“可以理解为，正式版上线触发了需求，成本性能比和智能体生态又将需求持续放大。”钟新龙说。 第二问：国产模型在技术层面有哪些优势？ 在国产模型包揽榜单前五的背景下，我国大模型在技术层面的优势值得关注。“国产大模型的突出优势，已经扩展到全链路工程能力。”钟新龙表示。 以DeepSeek V4 Flash为例，通过混合专家、稀疏注意力和长上下文压缩等技术路径，在百万级上下文、推理能力、工具调用和低价格之间形成平衡；小米MiMo V2.5、腾讯Hy3、DeepSeek V4 Pro及智谱GLM 5.2，则分别在多模态、代码生成、长程规划和复杂推理等方向上形成互补。
三 | “更为关键的是，国内企业能够快速完成灰度测试、正式发布、接口迁移和多平台分发，从而将技术进步迅速转化为全球开发者的实际调用。”钟新龙说。
四 | 第三问：将给国内AI企业带来哪些机遇与挑战？ 从更长周期看，国产模型在海外推理成本上的优势，正在为产业发展打开新空间。 我国大模型普遍采用MoE（混合专家）架构，这一架构可以通过降低参数激活比来压缩推理成本。通俗来讲，一个公司有几十个专家，处理一个任务时，MoE架构下只需要“激活”几个最擅长的专家来完成，而不需要动用所有专家，从而实现有效“降本”。 在钟新龙看来，国内AI企业可以利用该正式版发布的窗口吸引全球开发者，并由低价API（应用程序接口）服务逐步延伸至推理工具链、行业解决方案等高附加值环节，扩大发展空间。
五 | 同时，调用量增长还将拉动国产推理芯片、服务器、存储等基础设施需求，为软硬件协同优化提供真实场景。 不过，挑战同样不容忽视。钟新龙表示，高调用未必带来高利润，正式版发布形成的流量峰值会考验企业的算力供给、服务稳定性、故障恢复能力等，持续低价还可能压缩利润空间。此外，海外市场对版权合规、网络安全及审计等方面的要求日益严格，持续抬高合规门槛。“对国内企业而言，要进一步把价格优势转化为稳定服务能力、合规交付能力、开发者生态以及高价值应用。”钟新龙建议。（记者 崔 爽）。
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