LLM
GA
Proprietary
Grok 4.3
Pure reasoning, math, and science
Release2026-02
Context1M
Max output131,072 tokens
ParametersUndisclosed
Local / VRAMAPI only
LicenseProprietary
Overview
Grok 4.3 is a model in the LLM category from xAI (SpaceXAI). It was released in 2026-02. The vendor is based in US. Best for: Pure reasoning, math, and science.
Strengths
- 1M context
- Strong academic reasoning
Limits
- No image or audio output
- Limited ecosystem outside X
Specifications
| Vendor | xAI (SpaceXAI) |
|---|---|
| Category | LLM |
| Release | 2026-02 |
| Status | GA |
| License | Proprietary |
| Commercial use | Not specified |
| Context window | 1M |
| Max output tokens | 131,072 |
| Input modalities | Text, Image |
| Output modalities | Text |
| Prompt types | Text |
| Negative prompts | No |
| Max outputs | 1 |
| Local deployment | No |
| API access | Yes |
| Pricing | $2 / $6 per 1M token |
| Confidence | Medium |
| Vendor country | US |
| Vendor type | Frontier lab |
Pricing & hardware
$2 / $6 per 1M token
API-only: local GPU memory is not applicable. API access is available.