<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Opus5 on 脱水研报</title><link>https://reports.zhihai.me/tags/opus5/</link><description>Recent content in Opus5 on 脱水研报</description><generator>Hugo</generator><language>en</language><lastBuildDate>Wed, 02 Sep 2026 15:42:00 +0800</lastBuildDate><atom:link href="https://reports.zhihai.me/tags/opus5/index.xml" rel="self" type="application/rss+xml"/><item><title>🔥Fable5.1 缓存价砍至 0.25 美元，天风：Top1 难再靠更聪明提价</title><link>https://reports.zhihai.me/posts/2026-09-02-anthropic-fable51-cache-discount/</link><pubDate>Wed, 02 Sep 2026 15:42:00 +0800</pubDate><guid>https://reports.zhihai.me/posts/2026-09-02-anthropic-fable51-cache-discount/</guid><description>Fable5.1 缓存命中价从 1 美元砍至 0.25 美元（按基础输入价 0.025 倍计），典型负载成本 -25%、重度 Agent 负载最高 -45%，特定任务成本可逼近 Opus5；能力代差转向长程专业任务，Terminal-Bench-Science 由 24.7% 提升至 52.6%，显著超 Opus5 与 GPT-5.6Sol。</description></item></channel></rss>