Intern S2

Intern's 397-billion-parameter multimodal model targets scientific reasoning and extended tasks using tools. Its visual pretraining learns directly from scientific literature pages, preserving relationships between text, symbols and visual information.

CONTEXT256K

MAX OUTPUT256K

LAST SCAN13 Nov 2026

Open weights TextImage

Free aggregator routes

These are the aggregator routes recorded in the current or last published catalog. Each route keeps its exact model ID and thinking information.

Limits above: Intern Discovery. Available gateway routes are listed below.

Preserved the supplied Intern Large Models creator. Its official model documentation identifies intern-s2 as the released 397B model, separately from Intern-S2-Preview-397B and the 35B preview. The corresponding creator repository is https://huggingface.co/internlm/Intern-S2-397B. Discovery's supplied exact ID identifies the advertised release without pinning its serving revision.

Intern Discovery

Info

Thinking: Not advertised by this API

Model ID · Intern Discovery APIintern-s2

Model sources

Intern official model identities and Puyu API documentation

Use it through LiteLLM

Import the current LiteLLM-compatible YAML and use the exact model ID shown above. The catalog is generated from the same reviewed scan data as the download.

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