Grok 4.3
xAI
xAI's flagship Grok model (April 2026), recommended for chat and coding as its most intelligent and fastest model. Features a 1M-token context window, native video input (an xAI first), and tight integration with real-time search tools.
Strengths
- xAI's most intelligent and fastest model for chat and coding
- 1M-token context window
- Native video input - an xAI first
- Competitive pricing ($1.25/$2.50) for a frontier model
Caveats
- November 2024 base knowledge cutoff - relies on search tools for recency
- Proprietary, API-only (no open weights)
- Vendor
- xAI
- Context Window
- 1,000,000 tokens
- License
- Proprietary
- Release Date
- 2026-04-30
- Training Cutoff
- 2024-11-30
- Modalities
- textimagevideo
Capabilities
Vision
Audio
Video
Tool Use
Resources
Pricing
$1.25 per 1M input tokens, $2.50 per 1M output tokens. 1M-token context; real-time data via search tools.