夸克浏览器推出内置千问AI助手的系统级功能，通过侧边栏、读屏、划词等六种方式无缝集成AI，无需切换标签，Alt+Space快捷启动，月费19.9美元，国内网络直接可用。
马斯克旗下xAI宣布，其新一代模型Grok-5将于2026年挑战《英雄联盟》S16全球总决赛冠军T1战队。比赛采用严格"人类等效限制"：AI仅通过单路1080p摄像头观赛，视野与人类相同，反应延迟不低于150毫秒，APM上限300，禁用API、外挂或超算资源，确保公平竞技。
360发布国内首份《大模型安全白皮书》，揭示大模型在金融、政务等关键领域应用中的五大核心风险，提出“外挂式安全+平台原生安全”双轨治理框架，为AI安全构建纵深防御体系。
Perplexity推出免费AI浏览器Comet，核心功能是侧边栏智能助手，可同时处理机票比价、邮件回复等跨页面任务，无需切换标签页。原仅向付费用户开放，现全球免费后引发下载狂潮导致服务器短暂崩溃。该产品旨在提升多任务处理效率，解放用户操作负担。
Xai
$1.4
Input tokens/M
$3.5
Output tokens/M
2k
Context Length
Anthropic
$105
$525
200
Google
$0.7
$2.8
1k
$7
$35
$2.1
$17.5
$21
Alibaba
-
$6
$24
256
Baidu
128
Bytedance
$1.2
$3.6
4
$2
$3.9
$15.2
64
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