Apertus-8B-Instruct-2509

Name: Apertus-8B-Instruct-2509
Author: Hugging Face

apache-2.08.1B

Context

66K

Capabilities

Show unsupported (5)

Reasoning & Interaction

Tool Calling

Infrastructure

Streaming

Fine-tuning

Model IDswiss-ai/Apertus-8B-Instruct

Creatorswiss-ai

Family—

Licenseapache-2.0

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Type—

Input modalities—

Output modalities—

Open weightYes

Parameters8.1B

Architecturetransformer

Context window66K tokens

Max input—

Max output—

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Knowledge cutoff—

Release date2025-08-13

Sourceofficial

Function Callingfunction_calling

Call external functions and APIs

GET/v1/models/huggingface/swiss-ai/Apertus-8B-Instruct