Swiss AI Initiative
ETH Zurich, EPFL and CSCS initiative that builds the fully open Apertus models.
4
Models catalogued
4
Open weights
2025
First release
Jul 24, 2026
Latest release
Releases per year
Models in this catalog by release year
All releases
Filter in catalog →| Model | Released | Type | Params | Context | Input $/M | Output $/M | Weights |
|---|---|---|---|---|---|---|---|
| Apertus 1.5 8B | Jul 24, 2026 | MultimodalDense | 8B | 262K | - | - | Open weights |
| Apertus 1.5 70B | Jul 24, 2026 | MultimodalDense | 70B | 262K | - | - | Open weights |
| Apertus 8B | Sep 2, 2025 | Text LLMDense | 8B | 65.5K | - | - | Open weights |
| Apertus 70B | Sep 2, 2025 | Text LLMDense | 70.6B | 65.5K | - | - | Open weights |