Context lengths are 500,000 tokens on Grok 4.5 and 1,048,576 tokens on Ox Alpha.
Grok 4.5Ox AlphaGrok 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.
Developed by Stealth, Ox Alpha is a reasoning model designed for coding, sustained agentic work, and demanding production workloads. With a massive context length of 1,048,576 tokens, it is ideally suited for long-horizon software engineering and complex reasoning. The model excels at supporting advanced workflows that combine text with other data.
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
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Grok 4.5 accepts 500,000 and Ox Alpha accepts 1,048,576 input tokens.
Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context; Ox Alpha accepts text and image input and supports reasoning, tool calling and long context.
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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