Nathan Lambert on X: "Lots of people posting about Z ai “benchmaxxing” to make this model. I think the truth is messy and many faceted:<br>1. Yes Zai probably cares slightly more about public benchmarks than OpenAI/Ant, helps with marketing<br>2. Zai is not benchmaxxing to the point where the model is" / X<br>Post

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Nathan Lambert on X: "Lots of people posting about Z ai “benchmaxxing” to make this model. I think the truth is messy and many faceted:<br>1. Yes Zai probably cares slightly more about public benchmarks than OpenAI/Ant, helps with marketing<br>2. Zai is not benchmaxxing to the point where the model is"

Nathan Lambert

@natolambert

Lots of people posting about Z ai “benchmaxxing” to make this model. I think the truth is messy and many faceted:<br>1. Yes Zai probably cares slightly more about public benchmarks than OpenAI/Ant, helps with marketing<br>2. Zai is not benchmaxxing to the point where the model is fried (if they did, they’ll fix it - they likely use this model internally a lot)<br>3. Zai likely has a narrower distribution of tasks the model is great at. 5.2 was great at agentic stuff, not the rest<br>4. GLM has not had vision - single modality is definitely easier<br>5. Zai is definitely extremely good at what they do, likely well more compute efficient than OpenAI/Ant<br>6. Time to release for Zai is likely days not months like OpenAI/Ant - this massively flatters them

All together, seems like a perfectly good strategy and congrats on the release - excited for the weights to be out for more broader testing.

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@Zai_org

9h

Introducing GLM-5.3: Built to Code. Ready for Cyber Defense.

- Top-tier coding and agentic capabilities, achieved through post-training on the 743B base model<br>- A major leap in cybersecurity, setting a new standard among open models

Tech Blog: z.ai/blog/glm-5.3

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@dejavucoder

5m

ze ai

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Nathan Lambert@natolambertFollow<br>Open model research @ something new.<br>Prev. co-led Olmo at Ai2.<br>Writes @interconnectsai, wrote https://t.co/alRXKINTwE

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