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Apertus
Apertus is an openly released multilingual model family from ETH Zurich, EPFL and the Swiss National Supercomputing Centre. PublicAI is a separately operated hosted interface, not the model’s publisher.
model · Limited available evidence · Checked 2026-10-04
Overview
Apertus is an openly released multilingual model family from ETH Zurich, EPFL and the Swiss National Supercomputing Centre. PublicAI is a separately operated hosted interface, not the model’s publisher.[1][2]
Use cases
Features
- The 70B instruction model supports tool use; the model card provides Transformers, vLLM, SGLang and MLX deployment guidance.[2]
Limitations
- The model card warns of factual mistakes and bias, and says generated outputs currently have no PII filter.[2]
Access and availability
- The family’s initial release on 2 September 2025 included 8B and 70B models. Download access does not eliminate local or hosted compute costs.[1]
Specifications
Verified 2026-10-04. Versions and access terms can change.
| Reviewed model | Apertus-70B-Instruct-2509[2] |
|---|---|
| Default context | 65,536 tokens[2] |
| License | Apache 2.0[2] |
Public user feedback
Attributed external experiences. These are separate from verified specifications and vendor claims.
No attributable user reviews have been verified for this entry yet.
Links
Sources and evidence gaps
- ETH Zurich Apertus releaseofficial · checked 2026-10-04 · published 2025-09-02
- Swiss AI Apertus model cardrepository · checked 2026-10-04
- PublicAI’s current model selection, terms and pricing were not verified.
- Discussion was found, but a reliably identifiable dated review was not established.
- No dedicated Apertus logo has been confidently verified.