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Notion expands model choices with GPT-6.1 Sol and GLM 5.3 options

Notion's September 30 public announcement lists seven recent additions to its model picker: Opus 5.5, Sonnet 5.5, GPT-6.1 Sol, GPT-6 Sol, GPT-6 Luna, GLM 5.3 and GLM 5.3 Flash. This is model availability inside Notion, not seven models trained by Notion or proof that every plan can use them without limits. The Sonnet addition already has its own retained announcement; this thread covers the broader cross-provider choice expansion.

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Notion · September 30, 2026

Read the original: Notion expands model choices with GPT-6.1 Sol and GLM 5.3 options

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