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Grok 4.3
AvailablexAIFrontierProprietary
xAI's agentic flagship with a 1M-token context and aggressive API pricing.
Specifications
- License
- Proprietary
- Weights
- Not released
- Architecture
- Mixture-of-Experts
- Parameters
- Undisclosed
- Context window
- 1M tokens
- Max output
- 64K tokens
- Knowledge cutoff
- Nov 30, 2025
- Price (in / out, $/M)
- $1.25 / $2.5
- Modalities
- TextVisionCode
Benchmarks
GPQA Diamondself-reported
86%Vendor-reported figures are claims until independently verified. See methodology.