GLM-5.2 is Z.ai’s flagship model for the era of long-horizon tasks. With a truly usable 1M-token context window, it can handle project-level engineering context, execute long-running tasks more reliably, follow engineering standards more consistently, and complete the full development workflow from requirements to multi-platform deployment in a single task.
GLM 5.2 vs Ox Alpha
Context lengths are 1,000,000 tokens on GLM 5.2 and 1,048,576 tokens on Ox Alpha.
GLM 5.2Ox AlphaDeveloped by Stealth, Ox Alpha is a reasoning model designed for coding, sustained agentic work, and demanding production workloads. With a massive context length of 1,048,576 tokens, it is ideally suited for long-horizon software engineering and complex reasoning. The model excels at supporting advanced workflows that combine text with other data.
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.
Activity Past 30 Days
Daily traffic served through AIHubMix — how demand for each model is trending.
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Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Throughput (tok/s)
TTFT (s)
Uptime (%)
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 accepts 1,000,000 and Ox Alpha accepts 1,048,576 input tokens.
What inputs and capabilities does each model support?
GLM 5.2 accepts text input and supports thinking, tool calling, function calling and structured outputs; Ox Alpha accepts text and image input and supports reasoning, tool calling and long context.
Can I call GLM 5.2 and Ox Alpha 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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