Has Grok 4.8 been released?
No. It is announced but not publicly released.
GR
Parameters
2.5T
Context length
No data
Multilingual
No data
Reasoning ability
No data
Grok 4.8 is an unreleased xAI model announced by Elon Musk on X on September 14, 2026. Musk stated that it has 2.5 trillion parameters; API access, pricing, context, modalities, and benchmarks remain undisclosed.
Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology
Grok 4.8
Model basics
Reasoning traces
No data
Thinking modes
Thinking modes not supported
Context length
No data
Max output length
No data
Model type
Reasoning model
Modality (in / out)
No data
Release date
2026-09-14
Model file size
No data
MoE architecture
Yes
Total params / Active params
2.5T / Not applicable
Knowledge cutoff
No data
Grok 4.8
Open source & experience
Code license
Proprietary
Weights license
Proprietary
GitHub repo
N/A
Hugging Face
N/A
Live demo
N/A
Grok 4.8
Official resources
DataLearnerAI blog
N/A
Grok 4.8
API details
API speed
No data
No public API pricing yet.
Grok 4.8
Publisher
Grok 4.8
Model Overview
Announced, not released
Grok 4.8 is an upcoming xAI model announced by Elon Musk on X on September 14, 2026. Musk stated that it has 2.5 trillion parameters. xAI has not published a model card, release date, API documentation, or public availability details.
What is confirmed
The announcement provides a 2.5T total parameter count. It does not disclose active parameters, architecture, context window, output limit, modalities, tools, reasoning modes, knowledge cutoff, weights, or license; LLMLearner leaves those fields unknown.
Availability, price, and benchmarks
Grok 4.8 has not been released. No API identifier, pricing, or benchmark results have been announced, so this record intentionally has no price or evaluation rows.
Source
Grok 4.8
FAQ
How many parameters does Grok 4.8 have?
Elon Musk stated that Grok 4.8 has 2.5 trillion total parameters. Active parameters and architecture have not been disclosed.
What are Grok 4.8's context window, price, and benchmark results?
xAI has not announced them. This page leaves those fields unknown rather than inferring them from earlier Grok models.
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