Context lengths are 500,000 tokens on Grok 4.5 and 256,000 tokens on Xiaomi Mimo V2 Omni (free). Time to first token (TTFT) measured on AIHubMix is 2.0s on Grok 4.5 and 1.7s on Xiaomi Mimo V2 Omni (free). Measured output throughput is 26.5 tok/s on Grok 4.5 and 41.3 tok/s on Xiaomi Mimo V2 Omni (free).
Grok 4.5
Xiaomi Mimo V2 Omni (free)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.
xiaomi-mimo-v2-omni-free is the open free version of xiaomi-mimo-v2-omni. To maintain reliable service, each account is limited to 5 requests per minute, 500 requests per day, and 1 million tokens per day.
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
Daily traffic served through AIHubMix — how demand for each model is trending.
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
Xiaomi Mimo V2 Omni (free): 1.7s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
Grok 4.5 accepts 500,000 and Xiaomi Mimo V2 Omni (free) accepts 256,000 input tokens.
Xiaomi Mimo V2 Omni (free) at 41.3 tok/s and Grok 4.5 at 26.5 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context; Xiaomi Mimo V2 Omni (free) accepts text, image, video and audio input and supports web search.
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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