---
id: "2026-10-15-jais-3-open-arabic-models-mbzuai-inception42"
url: "https://postcutoff.com/e/2026-10-15-jais-3-open-arabic-models-mbzuai-inception42/"
as_of: "2026-10-19T09:28:00+02:00"
date: "2026-10-15"
date_precision: day
category: open-source
importance: 2
confidence: high
status: [Confirmed]
sources: 4
editor: human editor
human_review: null
version: "2026-10-19"
---

As of: 2026-10-19 09:28 CEST.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2026-10-15-jais-3-open-arabic-models-mbzuai-inception42/

# MBZUAI and Inception42 launch Jais 3

Full title: MBZUAI and Inception42 launch Jais 3: six open Arabic models up to 375B (MoE, 512K context, Apache 2.0) plus Jais Speech

On Oct 15, 2026, MBZUAI's Institute of Foundation Models and G42's Inception42 (with Cerebras) launched Jais 3, six open Arabic-English models from 0.9B to a 375B-parameter mixture-of-experts flagship (23B active, 512K context, Apache 2.0) built on IFM's K2 Horizon base, with an Arabic dialect speech recogniser, Jais Speech. Weights had been on Hugging Face since Sept 29.

## Key facts
- Family: Jais-3-0.9B, 3.7B, 7B, 32B, MoVA-36B-A4B and the flagship Jais-3-375B-A23B (sparse MoE, 375B stored, 23B active per token, 512K context), each with five training checkpoints (Hugging Face model card; Gulf News)
- Licence: Apache 2.0 (model card); weights uploaded to huggingface.co/inception42 on Sept 29, 2026, public launch Oct 15; vLLM and SGLang support
- Base: K2 Horizon, IFM's fully open foundation model family released in September 2026
- Developers' own results on 24 Arabic benchmarks (suite released): at 7B, the average Arabic score rises from 56.4 (K2 Horizon base) to 79.6; the 375B model 'leads open models on agentic tasks'; not independently checked
- Jais Speech: transcribes Modern Standard Arabic and dialects of 19 countries, keeps code-switched English or French words in their script, identifies the dialect and can add vowel marks; claimed lowest average WER/CER among compared systems, including commercial ones
- Quotes: Haonan Li (IFM): 'We built Jais 3 for Arabic as it's really used'; Ashish Koshy (Inception42 CEO): 'Building an Arabic LLM is not a translation exercise'

## What happened

The UAE's MBZUAI (Institute of Foundation Models) and Inception42 released the third generation of Jais, the best-known
Arabic-first model line, as six open models with checkpoints, a public 24-benchmark Arabic evaluation suite and a speech model.
The flagship is a 375B-parameter MoE with 23B active parameters and a 512K-token context, under Apache 2.0.

## Why it matters

It is the largest openly licensed Arabic-native model and part of the Gulf's sovereign-AI push; the developers' claims of leading
open models on Arabic and agentic tasks have not yet been independently tested. Found through a model-release tracker, not
Techmeme.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): 168 days after its cutoff
- Claude Opus 5.5 (training cutoff June 2026): 107 days after its cutoff
- Gemini 4 Argon (training cutoff March 2026): 198 days after its cutoff
- Grok 4.7 (training cutoff May 2026): 137 days after its cutoff

## Sources

1. [Hugging Face: inception42/Jais-3-375B-A23B model card](https://huggingface.co/inception42/Jais-3-375B-A23B) (huggingface.co, code)
2. [Gulf News: UAE launches Jais 3, Arabic-native AI for speech, writing and agents](https://gulfnews.com/uae/uae-launches-jais-3-arabic-native-ai-for-speech-writing-and-agents-1.500711935) (gulfnews.com, press)
3. [WAM: MBZUAI, Inception42 launch Jais 3 Arabic AI models](https://www.wam.ae/en/article/c2r7j2m-mbzuai-inception42-launch-jais-arabic-models) (wam.ae, press)
4. [HPCwire: MBZUAI and Inception42 introduce Jais 3 (403 for us)](https://www.hpcwire.com/aiwire/2026/10/16/mbzuai-and-inception42-introduce-jais-3-and-arabic-speech-recognition-model/) (hpcwire.com, press)

## Changes

- 2026-10-19 (filed): Created (web search for recent releases)