Context lengths are 204,800 tokens on Coding MiniMax M2.1 (free) and 500,000 tokens on Grok 4.5. On the LMArena coding leaderboard Coding MiniMax M2.1 (free) scores 1439 and Grok 4.5 scores 1523.
Coding MiniMax M2.1 (free)
Grok 4.5coding-minimax-m2.1-free is a free and open version offered by AIHubMix specifically for MiniMax users. To maintain stable service operations, the following usage limits apply: a maximum of 5 requests per minute, 500 total requests per day, and a daily quota of 1 million tokens.
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.
Grok 4.5: 1523; Coding MiniMax M2.1 (free): 1439 (LMArena coding leaderboard).
Coding MiniMax M2.1 (free) accepts 204,800 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 13,100 tokens on Coding MiniMax M2.1 (free) and 500,000 tokens on Grok 4.5.
Coding MiniMax M2.1 (free) accepts text input and supports thinking, tool calling, function calling and structured outputs; 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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