These are the xAI models currently listed as live in the Borg directory. The descriptions below summarize each model's published use cases; the linked model pages give the full account. A lane id is the value you use to select a model directly in the Borg gateway, not a separate model name. Check the linked pages for context windows, reasoning support and any vendor API list prices before choosing a lane for your work.
Grok 4.3 is the less expensive, fast-response option among these Grok generations, positioned by xAI for dependable tool calls and instruction following rather than exclusively deep technical work.
Best for Grok 4.3:
high-volume instruction-following tasks
tool calls with structured outputs
long document triage
image-assisted question answering
Borg lane ids: grok-4.3, x-ai/grok-4.3. Open the model page for its full description, available specifications, vendor price sources, and routing roles.
Grok 4.5 is xAI's coding-oriented generation following the cheaper Grok 4.3.
Best for Grok 4.5:
agentic coding with tools
technical math and engineering questions
debugging from screenshots
long software design discussions
Borg lane ids: grok-4.5, x-ai/grok-4.5. Open the model page for its full description, available specifications, vendor price sources, and routing roles.
Grok 4.6 follows 4.5, with xAI emphasizing sustained agents, multi-step research and more polished interactive or visual software projects.
Best for Grok 4.6:
multi-step codebase changes
interactive application prototyping
agent-led research and verification
visual UI iteration from screenshots
Borg lane ids: grok-4.6, x-ai/grok-4.6. Open the model page for its full description, available specifications, vendor price sources, and routing roles.
Grok 4.7 is xAI's successor to 4.6, built on a larger base model with longer reinforcement-learning training for difficult, extended tasks.
Best for Grok 4.7:
long-running agentic coding
complex terminal and engineering tasks
professional document drafting
self-checking technical analyses
Borg lane ids: grok-4.7, x-ai/grok-4.7. Open the model page for its full description, available specifications, vendor price sources, and routing roles.
How Fusion uses xAI
Borg Fusion can route between models in the subscription catalog according to the task and the selected profile. Having a xAI lane in the catalog does not mean that every Fusion profile will choose it for every request. No specific routing assignments for xAI are published in this catalog. The model pages distinguish published routing roles from use cases, so you can compare options without assuming a benchmark result or a routing guarantee. You can also choose a listed lane directly if you want to control which model handles a request.
FAQ
Which xAI models are in Borg?
The table and model details above list the current live xAI models in Borg. Each linked page includes the model's lane ids and available specifications. Models awaiting identity review are not shown as live.
How does Fusion use xAI?
Fusion profiles select from available lanes depending on the task. Consult each xAI model page for its published Fusion roles; a missing role is not evidence that the model cannot be selected directly.
Can I select a xAI lane directly?
Yes. Open a xAI model page to find its Borg lane ids and the compatible gateway model field. Use the lane id rather than the public page slug when choosing a model directly.
xAI
Grok
Anthropic
OpenAI
Google
Moonshot AI
Z.ai
Meta