What the evidence says
These facts come from the reviewed Epoch AI catalog artifact and its linked primary record. They describe the model. They do not rank it.
- Developer [1]
- xAI
- Released [1]
- July 9, 2025
- Domains [1]
- Language · Multimodal · Vision
- Tasks [1]
- Language modeling/generation · Question answering · Search · Visual question answering · Character recognition (OCR) · Image captioning · Quantitative reasoning
- Access [1]
- API access
- Weights [1]
- Closed
Where it may fit
These are evidence-bounded screening suggestions, not performance claims or purchase recommendations.
Mixed-media question answering
Consider it when a hosted workflow spans visual question answering, image captioning, and character recognition alongside language tasks.
Evidence fields: domains, tasks [1]
Search-connected API workflows
Consider it when search is an explicit documented task and API access fits the deployment.
Evidence fields: tasks, access [1]
Limitations
The record does not report retrieval quality, OCR accuracy, price, context window, latency, or safety evaluations, and no exact-match Arena rating exists for it. Listed tasks indicate intended scope, not measured performance.
Current standing
According to the LMArena snapshot published July 16, 2026, no exact match for this catalog record appears in the style-controlled text category, so this page reports no current rating for Grok 4.