xAI: Grok Latest
~x-ai/grok-latest · xAIUnmeasurable- Declared family
- Router
- Declared tokenizer tag
- Router
- Entered catalogue
- 8 July 2026
- Measurement
- Excluded: a router, not one stable model
- Evidence confidence
- Unknown
This catalogue entry is an alias: a name that points at another model rather than a model of its own. Its serving contract is listed below; the identity evidence lives on the record of the model it serves.
| We checked | What we found | Where it came from |
|---|---|---|
| How it counts tokens | Not measured yet | we measured it |
| How its API is set up | Set up identically to 1 other listing, field for field | api_81d6ab90 |
| How much it can read and write | Reads up to 500,000 tokens at onceOpenRouter's listing shows 450,000 output tokens, which is 90% of the context window, the figure it carries where the provider declares no maximum. | its own listing |
| Whether it thinks before answering | Always reasons, and cannot be turned off, at xhigh, high, medium, low, high by default | its own listing |
This model always redirects to the latest Grok model from xAI.
Supported parameters
include_reasoninglogprobsmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstemperaturetool_choicetoolstop_logprobstop_p
defaults: {"temperature":0.7,"top_p":0.95}