Intelligence Index
0138.0
> 64% OF MODELS
xAI
Grok 4.20
Updated: September 2026
xAI's latest Grok beta tuned for high-speed responses, precise instruction adherence, and dependable agentic tool execution in production workflows.
Specifications
- Context
- 2M
- Input Modalities
- Image, Text, File
- Output Modalities
- Text
- Input
- $2/M
- Output
- $6/M
Capabilities
VISIONWEBTHINKINGCODING
Similarly Priced Models
| Model | Provider | Context | Input Price | Output Price |
|---|---|---|---|---|
| Qwen3.8 2.4T A95B | Qwen | 1M | $2/M | $6/M |
| Qwen3.8 2.4T A95B (batch) | Qwen | 1M | $2/M | $6/M |
| SpaceXAI: Grok 4.6 | xAI | 500K | $2/M | $6/M |
| Qwen3.8 Max | Qwen | 1M | $2/M | $6/M |
| Grok 4.5 | xAI | 500K | $2/M | $6/M |
Performance Metrics
Average Response Performance
- Output Speed
- 101.1 tok/s
- Time To First Token
- 15.67s
- Time To First Answer Token
- 15.67s
- End To End Response Time
- 20.62s
DATA SOURCE: Artificial Analysis