SpaceXAI: Grok 4.6

SpaceXAI: Grok 4.6 is a model from x-ai that accepts text, image, and file inputs. It offers a 500,000-token context window and can return up to 450,000 tokens in a single completion, which suits long documents, large file sets, and extended outputs. It supports tool use and reasoning. The listing does not specify structured output support or whether the weights are open, so teams that depend on either should confirm before committing. At $2.00 per million input tokens and $6.00 per million output tokens, it is a paid model, and the output price matters most for workloads that use its long completion limit. It belongs on a shortlist for buyers who need very long context, mixed text, image, and file input, and tool-driven or reasoning tasks. It has no independent benchmark coverage yet, so its quality is unproven here; run your own evaluations against alternatives before choosing it.