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Latest open artifacts (#22): Zyphra, Cohere, and Poolside are expanding the breadth of the ecosystem
An assessment of the open ecosystem and the motivations behind releasing models
Jun 28
•
Florian Brand
and
Nathan Lambert
31
2
GLM-5.2 is the step change for open agents
A capability threshold I've been carefully monitoring.
Jun 22
•
Nathan Lambert
142
1
17
Banning Open Source AI Would Be A Mistake
This post was originally an op-ed co-authored with Kevin Xu of Interconnected for a general, non-technical audience.
Jun 19
•
Nathan Lambert
and
Kevin Xu
59
15
State of the blog, mid-2026
About 3 years since I started writing weekly.
Jun 17
•
Nathan Lambert
64
3
Frontier post-training recipe review with Finbarr Timbers
"Interview" #18
Jun 16
•
Nathan Lambert
34
3
56:35
Welcome to the AGI era of AI governance
It's a one-way door and we weren't ready for it.
Jun 14
•
Nathan Lambert
80
3
11
Claude Fable 5 and new AI safety fables
One step further into the power politics of frontier AI systems.
Jun 9
•
Nathan Lambert
131
1
12
Farewell Ai2
This was my last week at the Allen Institute for AI (Ai2), where I got the great privilege to work on the Olmo models, to grow, to learn, and to have…
Jun 2
•
Nathan Lambert
110
13
4
Open and closed models are on different exponentials
Where marginally higher intelligence drives value, and where it doesn't.
Jun 1
•
Nathan Lambert
83
14
7
May 2026
Some ideas for what comes next, May 2026
Gemini Flash 3.5, Mythos, open-closed balance, America's open-source surge, emerging power struggles and more.
May 26
•
Nathan Lambert
103
18
9
Latest open artifacts (#21): Open model bonanza! Gemma 4, DeepSeek V4, Kimi K2.6, MiMo 2.5, GLM-5.1 & others. On CAISI's V4 assessment.
An eventful month with one flagship release after another
May 16
•
Florian Brand
and
Nathan Lambert
30
1
3
How open model ecosystems compound
Further reflections on China's high-participation, open-first AI ecosystem.
May 12
•
Nathan Lambert
41
2
10
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