Answer · Writing
What AI models does Notion AI use?
Notion AI runs on Astra (Google), Auto (Notion), Claude (Anthropic), Claude Sonnet 4.5 (Anthropic), Codex (OpenAI), Cursor (AnysphereSpace), disclosed (disclosed), GLM 5.2 (Zhipu AI), GPT 6.1-Sol (OpenAI), GPT-5.2 (OpenAI), GPT-5.6 Sol (OpenAI), GPT-6 Luna (OpenAI), Grok 4.3 (xAI), Kimi K3 (Moonshot AI), LLM providers (disclosed), Notion AI LLMs (Notion), Opus 4.8 (Anthropic), Opus 5 (Anthropic), Opus 5.5 (Anthropic) and Sonnet 5.5 (Anthropic), and routes requests between them.
- Models used
- 20
- Primary model
- Astra
- Public API
- Yes
- Last checked
- 2026-11-08
Model claims are labelled by how we know them: Astra — disclosed, Auto — disclosed, Claude — inferred, Claude Sonnet 4.5 — disclosed, Codex — inferred, Cursor — disclosed, disclosed — unknown, GLM 5.2 — disclosed, GPT 6.1-Sol — disclosed, GPT-5.2 — disclosed, GPT-5.6 Sol — disclosed, GPT-6 Luna — disclosed, Grok 4.3 — disclosed, Kimi K3 — disclosed, LLM providers — unknown, Notion AI LLMs — unknown, Opus 4.8 — disclosed, Opus 5 — disclosed, Opus 5.5 — disclosed and Sonnet 5.5 — 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: mcp.
Cite this answer
Tomorrow. “What AI models does Notion AI use?” Tomorrow AI & Emerging Tech Index, AlienSquad, updated 2026-11-08. https://tomorrow.aliensquad.ai/q/what-models-does-notion-ai-use
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