Qwen3.8-Max is Alibaba Cloud Tongyi Qianwen's next-generation flagship large language model, featuring a mixture-of-experts (MoE) architecture with 2.4 trillion parameters. It achieves another breakthrough in encoding depth, enabling it to handle more complex engineering-grade projects and long-term autonomous development; collaborative agent capabilities are significantly enhanced, performing more confidently in multi-tool orchestration and end-to-end delivery; visual understanding is comprehensively improved, with more sensitive and accurate chart reasoning, document parsing, and multimodal perception. Continuing the 1-million-context window, reasoning modes, and a complete tool ecosystem, it continues to evolve at a higher level of intelligence.
Qwen3.8 Max vs Union Alpha (free)
Compare Qwen3.8 Max from Qwen and Union Alpha (free) from Stealth on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
Developed by Stealth, Union Alpha is a multimodal model built for research, coding, and agentic workflows. It delivers frontier-level performance across a broad range of general-purpose tasks. Featuring a massive 262,144 token context window, this model is highly capable of handling extensive and complex 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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FAQ
How large is each context window?
Qwen3.8 Max accepts 1,000,000 and Union Alpha (free) accepts 262,144 input tokens.
What inputs and capabilities does each model support?
Qwen3.8 Max accepts text, image and video input and supports tool calling, function calling, structured outputs, web search, long context and thinking; Union Alpha (free) accepts text and image input.
Can I call Qwen3.8 Max and Union Alpha (free) 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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