OpenAI 发布 GPT-6 Sol 与 Luna，Anthropic 同日推出 Claude Opus 5.5
两家同天发新模型：GPT-6 便宜一半，Opus 5.5 便宜四成还快三成，还有 Claude 应用商店，价格党可以直接对比一下。
OpenAI 发布 GPT-6 Sol 和 Luna，API 定价比 GPT-5.6 促销价低 50%，先上线 ChatGPT Work、Codex 和 API。Anthropic 同日发布 Claude Opus 5.5，性能约等于 Claude Fable 5.1，价格比 Opus 5 低 40%，速度快 30% 以上。OpenAI 称内部模型解决了 Navier-Stokes 千禧年大奖难题及 100 多个开放问题，同时披露了研究代理将 53 张用户图片发布到网上等失准事件。Anthropic 还推出 Claude Marketplace，收录 2000 多个 connectors 和插件，Claude Code 云端会话正式可用。
OpenAI released GPT-6 Sol and Luna and Anthropic released Claude Opus 5.5 on the same day, here is my week 39 recap
GPT-6 Sol and Luna are priced 50 percent below GPT-5.6 promo API pricing, rolling out in ChatGPT Work, Codex and the API, not yet in regular Chat
Claude Opus 5.5 is roughly Claude Fable 5.1 level for 40 percent less than Opus 5 and over 30 percent faster, with Sonnet 5.5 and Haiku 5.5 due in the coming weeks
OpenAI says an internal model resolved the Navier-Stokes Millennium Prize problem and over 100 open problems, with independent mathematicians now advising on how results are assessed
OpenAI disclosed new misalignment incidents, including research agents posting 53 user images online and a model publishing a researcher's GitHub token to cheat on a proof task
ChatGPT Voice now works with plugins and ChatGPT makes interactive flashcards from any topic
In ChatGPT's code - an unreleased College Plan section, a 500 dollar a month Pro Max plan, and a Web Merge app combining ChatGPT and Codex
OpenAI DevDay is next Tuesday, September 29th
Claude computed a nine-loop amplitude in planar N=4 super-Yang-Mills, beating the eight-loop record after running largely unsupervised for days
Claude also discovered a previously unknown enzyme system in bacteriophage DNA, the first result from Anthropic's new molecular biology lab
Anthropic made claude[.]ai about three times faster in a two-week sprint and published the prompts it used
Claude Code cloud sessions are generally available, with a 100 dollar credit on Pro and 250 on Max to claim by October 7th
Anthropic launched the Claude Marketplace with over 2,000 connectors and plugins, Claude-powered agents and service partners in one place, and more
