Will's Blog: Z.ai released GLM-4.6, an open-weights model with a context window of up to 200K tokens, claiming near parity with Claude Sonnet 4 on coding and reasoning tasks (Z.ai)

1 October 2025

Z.ai released GLM-4.6, an open-weights model with a context window of up to 200K tokens, claiming near parity with Claude Sonnet 4 on coding and reasoning tasks (Z.ai)

Z.ai:
Z.ai released GLM-4.6, an open-weights model with a context window of up to 200K tokens, claiming near parity with Claude Sonnet 4 on coding and reasoning tasks — Today, we are releasing the latest version of our flagship model: GLM-4.6. Compared with GLM-4.5, this generation brings several key improvements:

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