Claude Opus 5.5 and Sonnet 5.5: When a Lower Price per Token Costs More
Anthropic's October 2026 rate card is lower than the previous generation on Opus and Sonnet, but a cheaper token is not a cheaper task. The ...
Oct 23, 2026
![Word Warrior](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><linearGradient id="gWord" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" stop-color="%23b91c1c" /><stop offset="100%" stop-color="%23f87171" /></linearGradient><filter id="fWord"><feDropShadow dx="0" dy="2" stdDeviation="3" flood-opacity="0.3"/></filter></defs><circle cx="50" cy="50" r="45" fill="url(%23gWord)" filter="url(%23fWord)"/><circle cx="50" cy="50" r="38" fill="none" stroke="rgba(255,255,255,0.4)" stroke-width="2"/><path d="M25 60 L75 60 L70 75 L30 75 Z" fill="%23ffffff" opacity="0.9"/><path d="M50 20 L55 30 L55 70 L45 70 L45 30 Z" fill="%23ffffff" filter="url(%23fWord)"/><rect x="35" y="65" width="30" height="5" fill="%23b91c1c"/><rect x="45" y="70" width="10" height="15" fill="%237f1d1d"/></svg>)
![First Post](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><linearGradient id="gFirst" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" stop-color="%238b5cf6" /><stop offset="100%" stop-color="%23ec4899" /></linearGradient><filter id="fFirst"><feDropShadow dx="0" dy="2" stdDeviation="3" flood-opacity="0.3"/></filter></defs><circle cx="50" cy="50" r="45" fill="url(%23gFirst)" filter="url(%23fFirst)"/><circle cx="50" cy="50" r="38" fill="none" stroke="rgba(255,255,255,0.4)" stroke-width="2"/><path d="M60 30 C 50 30, 40 40, 35 55 L 30 70 L 45 65 C 60 60, 70 50, 70 40 C 70 35, 65 30, 60 30 Z" fill="%23ffffff" opacity="0.9"/><path d="M35 55 L 45 65" stroke="%23ec4899" stroke-width="2"/><circle cx="65" cy="25" r="3" fill="%23fef08a"/><path d="M65 15 L65 20 M65 30 L65 35 M55 25 L60 25 M70 25 L75 25" stroke="%23fef08a" stroke-width="2" stroke-linecap="round"/></svg>)
7 min
Subscribe to xiaoying zhou's Newsletter
Get new articles and engineering posts delivered to your inbox.
What ChatGPT Plus at $20 a Month Can and Cannot Say About a $732 Billion Capex Year
A $20 subscription and a $732 billion capex year are different kinds of numbers. What the arithmetic can support, the four ways the ratio is...
Oct 23, 2026
11 min
Claude Sonnet 5.5 Migration: Three Settings to Check and What Three Tasks Cost
A newer model with an unchanged price table can still raise or lower your bill per task.
Oct 22, 2026
6 min
GLM-5 vs Gemini 3.8 Flash: 41% More Reasoning Tokens at a Higher Output Rate
One model wrote 15% fewer answer tokens and still cost 38% more on the output side.
Oct 22, 2026
7 min