A world made of gears. Doing both speed premium short term updates and long term world model building. Currently focused on weekly AI updates. Explorations include AI, policy, rationality, medicine and fertility, education and games.
| Platform |  | Pricing | Only free issues | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 1158 | Founded | 5 years ago | Last Issue | 6 days ago |
| Active | |||||
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thezvi.substack.comLatest Issues
AI #171: False Flag
This was the week of Claude Opus 4.8. I covered the model card, then model welfare concerns, and finally capabilities and reactions. It’s a good model, sir, an incremental but real improvement over Opus 4.7, and it is now my clear daily dri...
Trump Signs Executive Order For AI Testing Prior To Frontier Model Releases
Last week we were expecting an Executive Order on Thursday.
Then Trump cancelled it, and said he wouldn’t sign it because he was worried it would be too burdensome.
Then, with one change, he went ahead and signed it on Tuesday anyway.
Th...
Claude Opus 4.8: Capabilities and Reactions
You need a lot of data points to understand a new model, and what you have.
Trying to gauge from a few benchmarks is misleading. But if you have dozens of them, from a variety of sources, and you put them together with the model card tests...
Opus 4.8 Part 2: Model Welfare
Everything impacts everything. All knobs that you turn generalize. Thus, when you try to solve one problem, you often create another.
There were clearly attempts to address, in this short time, some of the problems with Opus 4.7, includin...
Claude Opus 4.8: The System Card
Only six weeks after Opus 4.7, we have Opus 4.8.
For everyone, that means another incremental upgrade to Claude. It is once again smarter, and can do tasks for longer, and comes with a number of hot new features.
For me, that also means...
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Authors
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Zvi Mowshowitz writes at thezvi.substack.com (Twitter @thezvi) about a variety of topics, currently primarily AI, attempting to model the world.
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