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Language model

Apertus 8B

swiss-ai

Released
September 2, 2025
Data date
September 8, 2026

Profile

Specifications and access

Published information about this model. Existing estimates are explicitly labeled.

SpecificationValue and source
Weights
Open weightsSource
Parameters
8 billionSource
Context window
65,536 tokensSource
Maximum output
8,192 tokensSource
Knowledge Cutoff
September 2025Source
License
Apache-2.0Source
Inputs
TextSource
Outputs
TextSource
Tool calling