MultimodalAPI only
Grok-3
xAI
Updated May 21, 2026 · Benchmarks via Artificial Analysis, specs & pricing via OpenRouter · Methodology · Report an error
Superseded by Grok 4
Specifications
- Type
- Multimodal
- Access
- API only
- Released
- February 17, 2025
- License
- proprietary
- Context window
- 128,000 tokens
- Knowledge cutoff
- November 17, 2024
- Output speed
- 100 tok/s
- Latency (TTFT)
- 0.7s
- Input
- Text, Image
- Output
- Text
- API pricing
- $3.00 in · $15.00 out / 1M tokens
Capabilities
Function callingStructured output
Benchmarks
Our take
Trained on xAI’s massive Colossus cluster and adding a reasoning mode, Grok-3 pushed the company into frontier contention.