Union Alpha
Analysis Summary
Union Alpha is listed with a 262,144-token context, vision, tool use, and function calling. These capabilities could support long-context and image-aware tasks that involve external tools. The supplied data provides no benchmark results, pricing, or speed measurements, however, so there is no reliable basis here to assess its reasoning quality, cost-effectiveness, or operational performance.
For an agency, the absence of measured evidence makes it difficult to recommend for client-facing content, coding, or unattended agent workflows. Its feature set signals possible applications but does not establish instruction-following precision, consistency, or correct use of tools. Any adoption decision should depend on direct testing rather than assumptions based on the name or listed capabilities.
Keep it out of critical production paths until it has been evaluated on representative tasks. A supervised trial can assess answer quality, vision handling, and function-call reliability, but without pricing data the business case also remains unclear.
Assessed September 23, 2026
Editorial notes
Union Alpha lists a 262K context, vision, and tool use, but no benchmark results or pricing information are provided to establish production value.
The DFO score ranks models on the Artificial Analysis Intelligence Index and is refreshed as new models launch. The write-up and verdict are our own. Feedback?
DFO Verdict
Union Alpha lists a 262K context, vision, and tool use, but no benchmark results or pricing information are provided to establish production value.
How Union Alpha compares
Its 262K-token context window is larger than 75% of the models we list. Union Alpha is currently free to use via OpenRouter.
Dark bar = input · light bar = output, scaled to the priciest peer.
1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.
About Union Alpha
Union Alpha is a multimodal model built for research, coding, and agentic workflows, while delivering frontier-level performance across a broad range of general-purpose tasks. Union Alpha is a stealth model..
Frequently asked questions about Union Alpha
How much does Union Alpha cost?
Union Alpha is currently available for free via OpenRouter.
What is the context window of Union Alpha?
Union Alpha has a context window of 262,144 tokens (262K).
What can Union Alpha do?
Union Alpha supports image/vision input, tool use, and function calling.
Who created Union Alpha?
Union Alpha is developed by Stealth and was released on September 16, 2026.