Answer · Writing
What AI models does Notion AI use?
Notion AI runs on Claude (Anthropic), Claude Sonnet 4.5 (Anthropic), Codex (OpenAI), Cursor (AnysphereSpace), disclosed (disclosed), GLM 5.2 (Zhipu AI), GPT-5.2 (OpenAI), Grok 4.3 (xAI), LLM providers (disclosed), Notion AI LLMs (Notion) and Opus 4.8 (Anthropic), and routes requests between them.
- Models used
- 11
- Primary model
- Claude Sonnet 4.5
- Public API
- Yes
- Last checked
- 2026-09-12
Model claims are labelled by how we know them: Claude — inferred, Claude Sonnet 4.5 — disclosed, Codex — inferred, Cursor — disclosed, disclosed — unknown, GLM 5.2 — disclosed, GPT-5.2 — disclosed, Grok 4.3 — disclosed, LLM providers — unknown, Notion AI LLMs — unknown and Opus 4.8 — disclosed. "Disclosed" means the vendor says so in public; "inferred" means it was derived from documentation, headers or release notes.
Context window: Not published.
Other stack signals: npm, mcp, OAuth 2.0 and REST API.
Cite this answer
Tomorrow. “What AI models does Notion AI use?” Tomorrow AI & Emerging Tech Index, AlienSquad, updated 2026-09-12. https://tomorrow.aliensquad.ai/q/what-models-does-notion-ai-use
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