xAI's default Grok for chat, coding, agentic tools, and lower hallucination risk
Details
| Field | Value |
|---|---|
| id | grok-4-3 |
| family | grok |
| modality | text+image+pdf->text |
| context_length | 1000000 |
| max_output_tokens | 30000 |
| release_date | 2026-04-17 |
| is_open_weights | no |
| supports_tool_call | yes |
| supports_reasoning | yes |
| supports_structured_output | yes |
| supports_attachment | yes |
| input_modalities | text, image, pdf |
| output_modalities | text |