The Swiss AI Initiative is a national research effort launched in December 2023 and co-led by ETH Zurich and EPFL. It released Apertus, a fully open multilingual language model in 8B and 70B sizes, in September 2025.
- Founded
- 2023
- Type
- Academic lab
- AI lab
Catalogue
All models by Swiss AI
2 models · 1–2
| Select models to compare | Model | Released | Context | Input /M | Output /M | Parameters | Type | I/O | Openness |
|---|---|---|---|---|---|---|---|---|---|
 Apertus 70BSwiss AI | September 2, 2025 | 66K | — | — | 70B | Text | text → text | Open weights | |
| Apertus 8BSwiss AI | September 2, 2025 | 66K | — | — | 8B | Text | text → text | Open weights |