19 Aug 2026
Artificial Analysis 评测 GPT-6 Astra：编码智能体追平 Fable 5 但价格涨至 2.5 倍 / 55 signals
Artificial Analysis 发布 GPT-6 Astra 评测，其 Coding Agent Index 得分 67，约等于 Claude Opus 5 和 Fable 5，且成本不到 Fable 5 的一半；token 效率比 GPT-5.6 Sol （max） 高约 70%。 🔗 阅读原文 via AIHOT · https://aihot.virxact.com/items/cmtly53c50r9srow5ux7p8arw
OpenAI 首席研究官 Mark Chen 宣布 GPT-6 Astra 发布，称其为团队多年预训练、强化学习和后训练工作的成果，是迄今能力最强、对齐最好的模型。 🔗 阅读原文 via AIHOT · https://aihot.virxact.com/items/cmtlxtppp0qqprow5v4bb80ng
IFM 发布 K2 Horizon 模型系列，共六个模型：375B-A23B、36B-A4B、32B、7B、3.7B 和 0.9B，均以 Apache 2.0 开源，其中 0.9B、3.7B 和 7B 宣称在其规模上达到 SOTA，36B-A4B 采用新提出的稀疏注意力架构 MoVA。 🔗 阅读原文 via AIHOT · https://aihot.virxact.com/items/cmtlu0yka0neurow5as9e6jtu
Google DeepMind 与 Google Research 发布 WeatherNext 3，称其为迄今最先进的全球天气 AI 模型，经 Brightband 独立实时评估。 🔗 阅读原文 via AIHOT · https://aihot.virxact.com/items/cmtlnmh4o0fmsrow5i7pdq8b0
Gary Marcus 发文点评 GPT-6 Astra，称多项报告显示其为真正的进步，OpenAI 产品显式创建并操纵符号世界模型，令其近十年的主张获得印证。 🔗 阅读原文 via AIHOT · https://aihot.virxact.com/items/cmtm5q99n018rrow0z6je2l9y
OpenAI 于 9 月 3 日发布新一代大语言模型 GPT-6 Astra，是其首个达到准备框架中关键级网络安全能力门槛的模型，可在无逐步指导下发现防护严密系统的未知漏洞。 🔗 阅读原文 via AIHOT · https://aihot.virxact.com/items/cmtm3lnrg022wrooelnc62oo9
GPT‑6 Astra GPT-6 Astra is "rolling out today to a limited set of organizations and over the coming days will become available to all ChatGPT Plus, Pro, Business, and Enterprise users, as well as through the OpenAI API and AWS" - I've not tried it yet myself, so I don't have a great deal to say about it yet. It's going to be API priced at the same rate as Claude Fable 5 and 5.1: $10/million input and $50/million output. This is clearly OpenAI's Fable competitor, and appears to score higher than Fable on most of OpenAI's self-reported benchmarks. Most impressively, Astra scores 99.9% on the recent (released in March) ARC-AGI 3 benchmark - though notably Fable 5 does not yet have a published result, and the ARC-AGI blog notes that the 99.9% score was achieved for $19K using OpenAI's custom "
We spent 20B+ tokens of GPT-6 Astra to explore everything. Here’s our learnings.
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Background computer use is underrated https://t.co/jGOvHMj8sM
Open on X ↗We are not recording meetings for humans anymore. Nobody reads the AI summary notes or listens back. We are capturing transcripts to feed agents.
Open on X ↗I think the best way to describe OpenAI's culture is as a mega startup. It's hard to believe unless you see it from the inside. Extreme ownership, care and pace.
Open on X ↗Ah apologies, effort levels not breaking the prompt cache is live on API but not yet on Claude Code. Should be live within a day or so, will QT when it’s ready. Was OOO and did not realize this didn’t go out with the model launch.
Open on X ↗it me https://t.co/0NgNFmgV37
Open on X ↗