AINews：GPT-6.1 Sol 与 Sonnet 5.5 重塑性价比前沿
原标题：[AINews] not much happened today
AI 摘要
本期 AINews 汇总了 2026 年 10 月初的 AI 动态：OpenAI 发布 GPT-6.1 Sol，以每百万 token 2/10 美元的低价主打性价比，在 Agent Arena 排名第五；Anthropic 的 Sonnet 5.5 首发即位列第三并拿下 Chat 类别第一，使 Anthropic 占据 Agent Arena 前三。此外，llama.cpp 新增决策模型端点，Meta 开源 Muse 硬件固件，DeepSeek、Claude Code、Pi 等开发者工具持续更新。
正文节选
If you’re even seeing this, you should probably just go enjoy your weekend. AI News for 10/1/2026-10/2/2026. We checked 12 subreddits, 544 Twitters and no further Discords. AINews’ website lets you search all past issues. As a reminder, AINews is now a section of Latent Space. You can opt in/out of email frequencies! AI Twitter Recap GPT-6.1 Sol and Sonnet 5.5 Reshape the Cost–Performance Frontier - GPT-6.1 Sol launch: OpenAI priced Sol at $2/$10 per million input/output tokens, compared with $1