
OpenAI’s GPT-5.5 is the second model to complete one of our multi-step cyber-attack simulations end-to-end 🧵
Martin Signoux
2.5K posts

@MartinSignoux
Red-teaming innovation, fine-tuning regulation ——— AI policy @OpenAI

OpenAI’s GPT-5.5 is the second model to complete one of our multi-step cyber-attack simulations end-to-end 🧵

The GPT-5.5 model family completely dominates the cost-performance frontier on the Artificial Analysis Index

i'm usually quite anti-vaguepost, but we're just having too much fun from slack (Ben mentions what this is)










We invited Claude users to share how they use AI, what they dream it could make possible, and what they fear it might do. Nearly 81,000 people responded in one week—the largest qualitative study of its kind. Read more: anthropic.com/features/81k-i…



CHECK THIS OUT. Coding in augmented reality with @mistralvibe. Built at the Mistral AI Worldwide Hackathon in Paris by @Min0laa, @tr_mz_, and @glwesteneng. Shoutout to Voxtral and Devstral 2 models. Demo was run on a Meta Quest 3.


Productivity increases 2.8% in Q4 2025; unit labor costs also increase 2.8% (annual rates) bls.gov/news.release/p… #Productivity #BLSdata

Anthropic Head of Sales position in France: Company spend 530k€ per year 🇫🇷 gov get 340k€ employee get 190k€ All is fine.



Alain Damasio : je travaille avec Claude sur l'écriture de mon prochain roman, "je suis sidéré par ses capacités de création sur les univers imaginaires" ; elle est "quasiment au même niveau que mon artisanat, et que ça va continuer à progresser", au risque d'une "crise d'ego"...


@Yossi_Dahan_ @polynoamial ARC-4 is in the works, to be released early 2027. ARC-5 is also planned. The final ARC will probably be 6-7. The point is to keep making benchmarks until it is no longer possible to propose something that humans can do and AI can't. AGI ~2030.






Y. LeCun: " On peut proposer une alternative aux américain" " En Europe, il y a plein de talents ! C'est l'idée de ma startup : une entreprise globale qui aura des bureaux un peu partout. On ira chercher les talents là où ils sont" 💬@ylecun , CEO d'AMI Labs 🎙️@simottel