Five minutes. What happened, and what to do about it. All stories from 28 September 2026
Meta's Muse agent sold a keyboard cheap and gave out the seller's address
It also told the buyer he was home. He was not expecting anyone.
Claude Sonnet 5.5: same price, up to 30% cheaper per task
Anthropic· 28 SepAnthropic released Claude Sonnet 5.5, its mid-tier model. It keeps Sonnet 5's price of $2 per million input tokens and $10 output, runs 30% or more faster, and Anthropic says it costs up to 30% less per task because it needs fewer tokens. It is aimed at everyday work: fixing bugs and making documents, slides and spreadsheets.
- If an automation runs on Sonnet 5, rerun a week of real tasks on 5.5 and compare the cost per finished job.
- Try it on the report or slide deck you rebuild every month, using your own template.
Source: Anthropic. This is our short summary of their reporting. The paragraphs marked "Our read" and the things to do are SeedFoundry's opinion. The summary is drafted with AI tools. Image: Anthropic, from its own announcement. How we source and credit
These are short summaries of other people's reporting, with our own commentary. Each story names its source and links to the original. How we source and credit