grok-4.5 · Grok
Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.
Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.
grok-4.5 has a 500,000 token context window.
On AIHubMix, grok-4.5 costs $2 per million input tokens and $6 per million output tokens. Cached input reads are billed at $0.5 per million tokens.
grok-4.5 accepts text and image input.
grok-4.5 supports thinking, tool calling, function calling, structured outputs and long context. Per-protocol parameter support is listed in the capability table on this page.
grok-4.5 is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to grok-4.5 — no other code changes needed.
grok-4.5 is developed by Grok. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
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Use grok-4.5 via the AIHubMix unified API — one interface for every major LLM.