Grok 4.3 Beta
No estimate
No hardware requirements for this model
The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.
On record
Full specification
Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.
Origin
Who built this model, where, and when it was published.
- Organisation
- xAI
- Organisation type
- Industry
- Country
- United States of America
- Published
- 17 April 2026
What it does
The problem areas the model was built for. A model can carry several of each.
- Domain
- Language
- Task
- Language modeling/generation, Question answering
Size
How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.
- Parameters
- 500B
- Training data
- tokens
"Supplemental training has been added to 4.3. Grok 4.4 will be twice the size (1T) with training data through early April. Probably ready for release in early May. " from Elon (https://x.com/elonmusk/status/2045590599206875216?s=20) implies 500B parameters, assumed to be total #.
Availability
Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.
- Weights
- Closed — provider access only
- Model access
- Hosted access (no API)
- Training code
- Unreleased
How it is classified
Labels the source dataset applies when tracking notable models, and how confident it is in the entry.
- Likely above 10²³ FLOP
- Yes
- Record confidence
- Likely
Sources
Where this record came from and when it was last checked.
- Reference
- Grok Release Notes
- Last updated
- 30 June 2026
What the numbers mean
Background
Grok 4.3 Beta was published by xAI, in United States of America, in April 2026. industry is the category the publisher falls under.
It works in Language, and is recorded as doing language modeling/generation, Question answering.
Its weights were never published, so it can only be reached through its provider. No graphics card changes that.
Answers
Grok 4.3 Beta — common questions
What is Grok 4.3 Beta used for?
Grok 4.3 Beta works in Language, and is recorded as handling language modeling/generation, Question answering. Models frequently carry more than one of each, and the tags describe purpose rather than capability limits.
What GPU do I need to run Grok 4.3 Beta?
None. Grok 4.3 Beta is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.
Is Grok 4.3 Beta open source?
No. Grok 4.3 Beta has not had its weights published, so it exists only as a service controlled by its owner.
How many parameters does Grok 4.3 Beta have?
Grok 4.3 Beta has 500B parameters. "Supplemental training has been added to 4.3. Grok 4.4 will be twice the size (1T) with training data through early April. Probably ready for release in early May. " from Elon (https://x.com/elonmusk/status/2045590599206875216?s=20) implies 500B parameters, assumed to be total #. That figure is the total, and it is what decides how much memory the model needs — roughly half a gigabyte per billion at the compression most people use.
Who created Grok 4.3 Beta?
Grok 4.3 Beta was published by xAI, based in United States of America, categorised as industry.
When was Grok 4.3 Beta released?
Grok 4.3 Beta was published in April 2026.
The other direction
Looking at it from the other side?
This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.