SpaceXAI
Grok 4.20
x-ai/grok-4.20
Input
$1.25
per 1M tokens
Output
$2.50
per 1M tokens
Cached input
$0.20
per 1M tokens
Grok 4.20 is a reasoning model from SpaceXAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...
- Released
- Context window
- 1.9M tokens
- Max output
- 1.7M tokens
- Input
- text, image, file
- Output
- text
- Reasoning
- Yes
Price history
No price changes since we started tracking on .
Providers on OpenRouter
4 endpoints serve this model. Uptime is OpenRouter's share of successful requests; prices per 1M tokens.
| Provider | Input | Output | Context window | Uptime 30 min | Uptime 24 h |
|---|---|---|---|---|---|
| xAIvendor's own | $1.25 | $2.50 | 1.9M | 100% | 100% |
| xAIzdrvendor's own | $1.25 | $2.50 | 1.9M | 100% | 100% |
| xAIzdr · priorityvendor's owndiscount/priority tier | $2.50 | $5.00 | 1.9M | — | 100% |
| xAIpriorityvendor's owndiscount/priority tier | $2.50 | $5.00 | 1.9M | — | — |