Answer · Data & Analytics
What AI models does Hex use?
Hex runs on Claude (Anthropic), Claude Opus 5 (Anthropic), Fable 5 (Anthropic), Fable 5.1 (Fable), GPT 6 Astra (OpenAI), GPT 6 Luna (OpenAI), GPT 6 Sol (OpenAI), GPT-5.2 (OpenAI), GPT-5.6 Luna (OpenAI), GPT-5.6 Sol (OpenAI), GPT-5.6 Terra (OpenAI), Grok 4.6 (xAI), Kimi K2.7 (Moonshot AI), Kimi K2.7<a> (Moonshot), Luna (OpenAI), Opus 5.5 (Anthropic), Sol (OpenAI) and Terra (OpenAI), and routes requests between them.
- Models used
- 18
- Primary model
- Claude
- Public API
- Yes
- Last checked
- 2026-11-07
Model claims are labelled by how we know them: Claude — disclosed, Claude Opus 5 — disclosed, Fable 5 — disclosed, Fable 5.1 — disclosed, GPT 6 Astra — disclosed, GPT 6 Luna — disclosed, GPT 6 Sol — disclosed, GPT-5.2 — disclosed, GPT-5.6 Luna — disclosed, GPT-5.6 Sol — disclosed, GPT-5.6 Terra — disclosed, Grok 4.6 — disclosed, Kimi K2.7 — disclosed, Kimi K2.7<a> — disclosed, Luna — disclosed, Opus 5.5 — disclosed, Sol — disclosed and Terra — 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-client and mcp-server.
Cite this answer
Tomorrow. “What AI models does Hex use?” Tomorrow AI & Emerging Tech Index, AlienSquad, updated 2026-11-07. https://tomorrow.aliensquad.ai/q/what-models-does-hex-use
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