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Apertus-8B-Instruct-2509

Apertus-8B-Instruct-2509 is the 8-billion-parameter member of the Swiss AI Initiative's fully open Apertus family, a lighter alternative to the 70B model with the same architecture, multilingual coverage of over 1000 languages and training on 15 trillion tokens of consent-respecting data.

text → text · made by swiss-ai

$0.1$0.2per Mtok in / out
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Hugging Face Inference Providers aggregatorpublicai$0.1per Mtok in$0.2per Mtok outrouter.huggingface.co · read 2026-09-11

About

Apertus-8B-Instruct-2509 — a text model from swiss-ai.

It takes text and returns text, with a context window of 65,536 tokens. The catalogue files it under chat.

Every current figure

Maker
swiss-ai
Register
model
Takes
text
Returns
text
Context
65,536 tokens
Parameters
8 billion · read from its own name
Licence
not read

Known as 1 name

swiss-ai/Apertus-8B-Instruct-2509