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The Q* hypothesis: Tree-of-thoughts reasoning, process reward models, and supercharging synthetic data
Emergency special: The information we need to understand what Q* is was right in front of us, but the memes are more fun than reality.
Nov 24, 2023 • 
Nathan Lambert
102

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The Q* hypothesis: Tree-of-thoughts reasoning, process reward models, and supercharging synthetic data
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5
Behind the curtain: what it feels like to work in AI right now (April 2023)
Fear, FOMO, and the scientific exodus driven by ChatGPT
Apr 5, 2023 • 
Nathan Lambert
98

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Behind the curtain: what it feels like to work in AI right now (April 2023)
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21
DeepSeek R1's recipe to replicate o1 and the future of reasoning LMs
Yes, ring the true o1 replication bells for DeepSeek R1 🔔🔔🔔. Where we go next.
Jan 21 • 
Nathan Lambert
232

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DeepSeek R1's recipe to replicate o1 and the future of reasoning LMs
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2
DeepSeek V3 and the actual cost of training frontier AI models
The $5M figure for the last training run should not be your basis for how much frontier AI models cost.
Jan 9 • 
Nathan Lambert
125

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DeepSeek V3 and the actual cost of training frontier AI models
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OpenAI's o3: Over-optimization is back and weirder than ever
Tools, true rewards, and a new direction for language models.
Apr 19 • 
Nathan Lambert
120

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OpenAI's o3: Over-optimization is back and weirder than ever
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GPT-4.5: "Not a frontier model"?
OpenAI's latest model raises more questions than answers, but no, the AI bubble isn't popping quite yet.
Feb 28 • 
Nathan Lambert
84

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GPT-4.5: "Not a frontier model"?
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Reverse engineering OpenAI’s o1
What productionizing test-time compute shows us about the future of AI. Exploration has landed in language model training.
Sep 16, 2024 • 
Nathan Lambert
133

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Reverse engineering OpenAI’s o1
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2
Qwen 3: The new open standard
A wonderful release, base models, reasoners, model size scales, and all before LlamaCon.
Apr 28 • 
Nathan Lambert
81

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Qwen 3: The new open standard
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Why reasoning models will generalize
People underestimate the long-term potential of “reasoning.”
Jan 28 • 
Nathan Lambert
203

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Why reasoning models will generalize
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Llama 4: Did Meta just push the panic button?
One of the weirdest releases of the year and understanding the future of the Llama endeavor. For the time being, we have some more amazing open weight…
Apr 7 • 
Nathan Lambert
93

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Llama 4: Did Meta just push the panic button?
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Sycophancy and the art of the model
GPT-4o-simp, LMArena backlash, and people refusing to understand how messy and crucial RLHF is.
May 4 • 
Nathan Lambert
53

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Sycophancy and the art of the model
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Llama 2: an incredible open LLM
Meta is continuing to deliver high-quality research artifacts and not backing down from pressure against open source.
Jul 18, 2023 • 
Nathan Lambert
60

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Llama 2: an incredible open LLM
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7
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