Epoch AI ranks GLM-5.3 highest among open-weight models on Cyber ECI

1 reports 1 reporting sources 10 hours agoNew

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Epoch AI reported that Zai’s GLM-5.3 scored 160 on its Cyber ECI, making it the highest-scoring open-weight model on the measure and placing it ahead of OpenAI’s GPT-5.4, released in March. Epoch AI nevertheless estimated that open-weight models’ cyber capabilities remain about 6–7 months behind the closed-model frontier.

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Latest development10/17 02:39 (UTC+8)

Epoch AI estimates open-weight cyber capabilities trail the closed frontier by 6–7 months Epoch AI · X

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10/17

02:39
Epoch AI · X
Epoch AI estimates open-weight cyber capabilities trail the closed frontier by 6–7 months
Epoch AI estimates that open-weight cyber capabilities are about 6–7 months behind the closed frontier. Zai’s GLM-5.3 is the highest-scoring open-weight model on its Cyber ECI, scoring 160 and beating OpenAI’s GPT-5.4, released in March. https://t.co/F0D6nSnM69

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