Grok 4.20 Beta 0309 Reasoning
Grok 4.20 Beta 0309 Reasoning is a text model from 
xAI with a context window of 2.0M tokens and max output of 2.0M tokens. Pricing starts at 2.00 per million input tokens and 6.00 per million output tokens.
Capabilities
✓ Vision✓ Function Calling✓ Reasoning✗ JSON Schema✗ System Messages✓ Web Search✗ Prompt Caching✗ Audio Input✗ Audio Output
Specifications
| Model Key | xai/grok-4.20-beta-0309-reasoning |
| Provider | xAI |
| Provider ID | xai |
| Mode | Text |
| Canonical Name | grok-4.20 |
| Context Window | 2.0M tokens |
| Max Output | 2.0M tokens |
Pricing
| Type | Per 1K Tokens | Per 1M Tokens |
|---|---|---|
| Input Tokens | 0.0020 | 2.00 |
| Output Tokens | 0.0060 | 6.00 |
| Cache Read (Input) | 0.000200 | 0.200 |
All Variants
All available versions, regions, and API endpoints for Grok 4.20 Beta 0309 Reasoning.
Model Key | Provider | Mode | Input Price, $ | Output Price, $ | Context | Max Output | Vision | Functions |
|---|---|---|---|---|---|---|---|---|
| xai/grok-4.20-beta-0309-non-reasoning | xAI | Text | 2.00 | 6.00 | 2.0M | 2.0M | yes | yes |
| xai/grok-4.20-beta-0309-reasoning | xAI | Text | 2.00 | 6.00 | 2.0M | 2.0M | yes | yes |
| xai/grok-4.20-multi-agent-beta-0309 | xAI | Text | 2.00 | 6.00 | 2.0M | 2.0M | yes | yes |