GLM 5.2 is a large-scale reasoning model developed by Z Ai that supports text input and output. Featuring a 128,000-token context window, this model is designed to handle complex, data-heavy tasks. It is exceptionally well-suited for long-horizon agent workflows and project-level software engineering.
glm-5.2-free vs grok-4.5
Context lengths are 128,000 tokens on glm-5.2-free and 500,000 tokens on grok-4.5.
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.
Pricing & Specifications
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.
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Performance Past 3 Days
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Cost calculator
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Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
How large is each context window?
glm-5.2-free accepts 128,000 and grok-4.5 accepts 500,000 input tokens.
What inputs and capabilities does each model support?
glm-5.2-free accepts text input and supports reasoning and long context; grok-4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.
Can I call glm-5.2-free and grok-4.5 with the same API key?
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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