Output tokens cost $0.48 per million on Aihub Phi 4 and $6.00 per million on Grok 4.5. Input tokens cost $0.12 per million on Aihub Phi 4 and $2.00 per million on Grok 4.5. Cached input tokens are billed at $0.12 per million on Aihub Phi 4 and $0.50 per million on Grok 4.5. Context lengths are 16,400 tokens on Aihub Phi 4 and 500,000 tokens on Grok 4.5. Time to first token (TTFT) measured on AIHubMix is 0.4s on Aihub Phi 4 and 1.9s on Grok 4.5. Measured output throughput is 46.2 tok/s on Aihub Phi 4 and 26.7 tok/s on Grok 4.5. On the LMArena coding leaderboard Aihub Phi 4 scores 1307 and Grok 4.5 scores 1523.
Aihub Phi 4
Grok 4.5Phi-4 is a state-of-the-art open model based on a combination of synthetic datasets, curated public domain website data, and acquired academic books and QA datasets. The approach aims to ensure that small, efficient models are trained using data focused on high quality and advanced reasoning.
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.
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.
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
Aihub Phi 4: $0.48/M output tokens; Grok 4.5: $6.00/M. Use the cost calculator above to estimate your own workload.
Grok 4.5: 1523; Aihub Phi 4: 1307 (LMArena coding leaderboard).
Aihub Phi 4: 0.4s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
Aihub Phi 4 accepts 16,400 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 16,400 tokens on Aihub Phi 4 and 500,000 tokens on Grok 4.5.
Aihub Phi 4 at 46.2 tok/s and Grok 4.5 at 26.7 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
Aihub Phi 4 accepts text input; Grok 4.5 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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