# Jais 2

**Jais 2** left the hosted API on **21 August 2026**. Weights remain available on Hugging Face.

The second generation of the Jais family — Arabic-centric bilingual chat models developed by MBZUAI, Cerebras, and Inception, trained from scratch on 600B+ curated Arabic tokens.

- **Weights license:** Apache 2.0
- **Hugging Face collection:** [Jais 2](https://huggingface.co/collections/inceptionai/jais-2-family)

## Model series

Jais 2 ships in two decoder-only sizes, both trained from scratch with a custom 150K-token Arabic-centric vocabulary, RoPE positional encoding, and ReLU² activations. [Explore the models on Hugging Face →](https://huggingface.co/collections/inceptionai/jais-2-family)

| Model | Architecture | Active params | Context | Weights |
| --- | --- | --- | --- | --- |
| Jais-2-70B-Chat | Dense decoder-only | 70B | 8K | [View](https://huggingface.co/inception42/Jais-2-70B-Chat) |
| Jais-2-8B-Chat | Dense decoder-only | 8B | 8K | [View](https://huggingface.co/inception42/Jais-2-8B-Chat) |

_Last updated: October 15, 2026_