xAI: Grok 3 Beta

xAIID: x-ai/grok-3-beta

Grok 3 is the latest model from xAI. It's their flagship model that excels at enterprise use cases like data extraction, coding, and text summarization. Possesses deep domain knowledge in finance, healthcare, law, and science. Excels in structured tasks and benchmarks like GPQA, LCB, and MMLU-Pro where it outperforms Grok 3 Mini even on high thinking. Note: That there are two xAI endpoints for this model. By default when using this model we will always route you to the base endpoint. If you want the fast endpoint you can add `provider: { sort: throughput}`, to sort by throughput instead.

Pricing per 1M Tokens

Input (Prompt)$3.00
Output (Completion)$15
Cache Read$0.75
Cache WriteFree
ImageN/A

Specifications

Context Length131K
Max Output TokensN/A
Input ModalitiesText
Output ModalitiesText
TokenizerGrok
Instruct TypeN/A
Top Provider Context131K
Top Provider Max OutputN/A
ModeratedNo

Compare this model

See how xAI: Grok 3 Beta stacks up against other models.

vs xAI: Grok 4.20 Multi-Agent Betavs xAI: Grok 4.20 Betavs xAI: Grok 4.1 Fastvs xAI: Grok 4 Fastvs xAI: Grok Code Fast 1

More from xAI

xAI: Grok 4.20 Multi-Agent Beta
Input$2.00
Context2M
xAI: Grok 4.20 Beta
Input$2.00
Context2M
xAI: Grok 4.1 Fast
Input$0.20
Context2M
xAI: Grok 4 Fast
Input$0.20
Context2M
xAI: Grok Code Fast 1
Input$0.20
Context256K

Last updated: March 23, 2026

First tracked: March 23, 2026