A false narrative is being shared that GPT 5.5 ties with Mythos on several benchmarks as if that made them equivalent. What's being overlooked is that GPT 5.4 was already on par with Mythos in those benchmarks, except for Terminal Bench 2.0…
GENERATIVE AI
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Testing AI Model 5.5 Beyond Benchmark Limitations
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yep. I think benchmarks only tell half of the truth. Going to test 5.5 now
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27B Model Running Locally on 5090 Beats Frontier Model
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A 27B running locally on a 5090 beating a frontier model is where 2026 actually gets interesting.
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GPT-5.5 Pro Reaches Claude Mythos Level Performance
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From an eval perspective, GPT-5.5 pro is Claude Mythos level but for public use.
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OpenAI Releases GPT-5.5 Most Capable Model Yet
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GPT-5.5 evals are crazy – and what we have hoped for.
— Chubby♨️ (@kimmonismus) 23 avril 2026
Whats new? the tl;dr
OpenAI just dropped GPT-5.5, their "most capable model yet", which matches GPT-5.4's latency while delivering significantly higher intelligence across coding, knowledge work, and scientific research.… https://t.co/fDII5T1KeV pic.twitter.com/qdhXhPiWSfGPT-5.5 evals are crazy – and what we have hoped for. Whats new? the tl;dr OpenAI just dropped GPT-5.5, their "most capable model yet", which matches GPT-5.4's latency while delivering significantly higher intelligence across coding, knowledge work, and scientific research.
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Developers Share GPT-5.5 Building Experiences in Coffee Chats
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Thanks so much @clairevo
, @willkoh_kc
, and @AaronFriel for joining me for these quick coffee chats and sharing what building with GPT-5.5 felt like. Loved seeing what you made with it! -
Claude Code Team Partnership Recognition and Collaboration
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Def worth a listen – claude code team is phenomenal, has been a blast to partner with @_catwu over the years
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Fine-Tuning Diffusion Models via Intermediate Distribution Shaping
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Fine-Tuning Diffusion Models via Intermediate Distribution Shaping paper: https://
huggingface.co/papers/2510.02
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Cat: The Future of AI and Product Management Leadership
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Cat = At the center of the future of AI + PM = Listen to Cat
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Google Cloud Next Panel: AI Leaders Discuss Startups and Innovation
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4pm @ #GoogleCloudNext! Catch @hwchase17 at a live panel featuring… @Google Director, North America Startups, Customer Engineering Iliana Quinonez @chainguard_dev Co-Founder/CTO @mattomata @HuggingFace Product + Growth @jeffboudier