AI illustration: Grok 3 open-sourced in about 6 months
xAIAI
Missed

Grok 3 open source: promised in 6 months, missed

Elon Musk promised open-source Grok 3 weights by Feb 28, 2026. The deadline passed and it didn't happen.

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“The @xAI Grok 2.5 model, which was our best model last year, is now open source. Grok 3 will be made open source in about 6 months.”
— Elon Musk · Aug 23, 2025 · @elonmusk on X, Aug 23 2025 ↗
See his original post on XLoads Elon's actual tweet, right here.
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What actually happened

Musk said Grok 3 would be open-sourced in about 6 months (~Feb 2026). xAI's Hugging Face organization, checked Oct 11 2026, lists only xai-org/grok-1 and xai-org/grok-2; no Grok 3 weights have been released. xAI on Hugging Face (checked Oct 11 2026) — only Grok-1 and Grok-2 ↗

The Progression

Aug 23, 2025
The promise: “The @xAI Grok 2.5 model, which was our best model last year, is now open source. Grok 3 will be made open source in about 6 months.” · @elonmusk on X, Aug 23 2025 ↗
Feb 28, 2026
Deadline passed. Musk said Grok 3 would be open-sourced in about 6 months (~Feb 2026). xAI's Hugging Face organization, checked Oct 11 2026, lists only xai-org/grok-1 and xai-org/grok-2; no Grok 3 weights have been released. xAI on Hugging Face (checked Oct 11 2026) — only Grok-1 and Grok-2 ↗
Today · Oct 11, 2026
Status: Missed · 225 days past due. Never happened.

In August 2025, as xAI open-sourced Grok 2.5, Elon Musk said Grok 3 would be open-sourced in about six months. As of October 2026, xAI’s public Hugging Face page still lists only Grok-1 and Grok-2.

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Receipts

LAST CHECKED 2026-10-11

xAI’s record

Delivered
11
61% of resolved claims delivered.
Missed
7
Deadline passed, still no-show.
Still open
17
On the clock now. All 35 xAI claims →

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