Apertus 70B

Open weights Active Text LLM Dense apertus-70b

Fully open multilingual 70B model from ETH Zurich, EPFL and CSCS trained on compliant data.

Released
Sep 2, 2025
Context window
65.5K tokens
Max output
Not disclosed
Parameters
70.6B
Input price
Not disclosed
Output price
Not disclosed

Prices are first-party list prices in USD at the standard tier. Last verified Oct 30, 2026.

Pricing

No first-party API. This is an open-weights release you can run yourself.

Specifications

Developer
Swiss AI Initiative
Model type
Text LLM
Architecture
Dense
Parameters
70.6B
Input
Text
Output
Text
Knowledge cutoff
Not disclosed
License
Apache License 2.0
API access
No first-party API