Output tokens cost $6.00 per million on Grok 4.5 and $2.00 per million on Grok Build 0.1. Input tokens cost $2.00 per million on Grok 4.5 and $1.00 per million on Grok Build 0.1. Cached input tokens are billed at $0.50 per million on Grok 4.5 and $0.20 per million on Grok Build 0.1. Context lengths are 500,000 tokens on Grok 4.5 and 256,000 tokens on Grok Build 0.1. Time to first token (TTFT) measured on AIHubMix is 1.7s on Grok 4.5 and 0.6s on Grok Build 0.1. Measured output throughput is 26.2 tok/s on Grok 4.5 and 64.9 tok/s on Grok Build 0.1.
Grok 4.5Grok Build 0.1Grok 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.
Fast coding model trained specifically for agentic coding workflows.
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.
Grok Build 0.1: $2.00/M output tokens; Grok 4.5: $6.00/M. Use the cost calculator above to estimate your own workload.
Grok Build 0.1: 0.6s 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 Grok Build 0.1 accepts 256,000 input tokens. Maximum output per request is 500,000 tokens on Grok 4.5 and 256,000 tokens on Grok Build 0.1.
Grok Build 0.1 at 64.9 tok/s and Grok 4.5 at 26.2 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; Grok Build 0.1 accepts text and image input and supports thinking, tool calling, function calling, structured outputs 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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