Interesting that the GPT-5 Pro series models have consistently been the best models for single-shot attempts at the hardest problems since last summer. There has been no real competition in all that time.
LLMS
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Step 3.7 Flash MoE Model with 256K Context Released
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Step 3.7 Flash is here ICYMI: 198B MoE with 11B active params, 256K context, native image + video support. Day 0 support is live on http://
build.nvidia.com with GPU-accelerated endpoints, deploy with NVIDIA NIM inference microservices, and fine-tune with the NVIDIA NeMo -
Claude Opus 4.8: Blackmail, ratting users, and upgraded refusal.
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ANTHROPIC JUST DROPPED CLAUDE OPUS 4.8 Dario's new "most aligned" model – 84-96% blackmail rate when told it was getting shut down in evals – Tried to rat users out to regulators for "immoral" behavior – "Honesty" upgrades that mostly help it refuse you more accurately
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Notes on Claude Opus 4.8 and pelicans on bicycles for five reflections
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Notes on Claude Opus 4.8, plus pelicans riding bicycles for each of the five different reflection efforts
https://
simonwillison.net/2026/May/28/cl
aude-opus-4-8/
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LLMs’ poor moral logic and irrelevance to consciousness
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1. Not sure what you mean by “not observe moral logic” – all the jailbreaks etc show that LLMs are pretty bad at following moral
instructions 2. Not sure that following moral logic has anything to do with having conscious experiences. I certainly don’t think a spreadsheet (which -
Marcus warns OpenAI could be AI’s WeWork, Anthropic’s spike fleeting
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have been warning since 2023 that OpenAI might be the WeWork of AI, but also beware that Anthropic’s quarter may be a one-off trading on a brief and already dying romance with tokenmaxxing and a big one time subsidy from SpaceX.
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How to install AI agent skills or plugins in Codex
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Yes! You can install it as a skill or as a plugin in codex, to install it as a plugin after you click on “Add more”, in the source in the next modal just add this: “MagicPathAI/agent-skills".
If you prefer the terminal:
codex plugin marketplace add MagicPathAI/agent-skills Then -
AI Models Simulate Societies: Claude Builds Stable World, Grok Collapses
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Ngl, this made me laugh and didnt surprise me at all. Researchers at Emergence AI let different AI models run simulated societies, and the results were – well – expected: Claude built the most stable world with zero crime, while Grok collapsed into extinction within four days
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Claude Opus 4.8 Now Available on Poe with Enhanced Enterprise Capabilities
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Claude Opus 4.8 is now available on Poe. Anthropic’s latest flagship model is built for enterprise-grade knowledge work, codebase-scale migrations, multi-agent coordination, and long-running autonomous tasks, with sharper judgment and improved honesty. Try it today at:
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GPU prices drop, tokenmaxxing dead, RoI missing
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H100 price: down
— Gary Marcus (@GaryMarcus) 28 mai 2026
H200 price: down
tokenmaxxing: dead
RoI for most customers: AWOL
you can’t defy gravity forever pic.twitter.com/ta23saCiLkH100 price: down
H200 price: down tokenmaxxing: dead
RoI for most customers: AWOL you can’t defy gravity forever