Model information
Released
2026-03-31
Context window
2M
Weights
Closed
Modalities
Input
DocumentImageText
Output
Text
Identity
- Version
- grok-4.20
- Knowledge cutoff
- 2025-09-01
Capabilities
ReasoningStructuredTemperatureTool call
Providers
| Provider | Provider model ID | Protocol | Context | Max output | Input | Output | Capabilities | Notes | Pricing | Streaming |
|---|---|---|---|---|---|---|---|---|---|---|
| OpenRouter | x-ai/grok-4.20 | openai_chat | 2M | - | AttachmentsReasoningTool callStructuredTemperature | Reasoning disabled by default | input $1.25/M · output $2.5/M cache read $0.2/M | Yes | ||
| NanoGPT | x-ai/grok-4.20 | openai_chat | 2M | - | AttachmentsReasoningTool callStructured | - | input $2/M · output $6/M cache read $1/M | Yes | ||
| Kilo Gateway | x-ai/grok-4.20 | openai_chat | 2M | - | AttachmentsReasoningTool callStructuredTemperature | - | input $1.25/M · output $2.5/M cache read $0.2/M | Yes | ||
| xAI | grok-4.20 | custom | 2M | - | - | - | - | Yes |