Token limits
| Spec | Value |
|---|---|
| Context window | 1,000,000 tokens |
| Input types | Text, Image |
| Output types | Text |
Rate limits
Default limits on the model page. xAI says higher limits are available on request.
| Limit | Value |
|---|---|
| Requests per second | 37 |
| Tokens per minute | 10,000,000 |
Source: x.ai, read Nov 9, 2026.
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Questions
What is the Grok 4.3 context window
1,000,000 tokens, per docs.x.ai, read Nov 9, 2026.
What are the Grok 4.3 rate limits
Default limits on the model page. xAI says higher limits are available on request. Value 37 at the Requests per second tier, per docs.x.ai.
Source: x.ai, read Nov 9, 2026.