Stealth · Model identity
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....
1pricing route
What published route metadata supports
Structured outputTool useVision
Input modalities
ImageText
Supported API parameters
max_tokensresponse_formattemperaturetool_choicetoolstop_p
Only source-backed fields are filled
Release dateNot independently verified
Knowledge cutoffNot independently verified
Open weightsNot independently verified
OpenRouter catalog date2026-09-16
LLMPrice does not infer a release date, knowledge cutoff, or open-weight status from a model name, Hugging Face link, or pricing route.
Could this workload cost less?Compare Union Alpha with cheaper models using the same workload.
Find cheaper alternatives →| Endpoint / route | Model ID | Input | Cached | Output | Context | Source |
|---|---|---|---|---|---|---|
| OpenRouterStandard | stealth/union-alpha | $0 | — | $0 | 262K | OpenRouter API ↗ |
0 verified price changes since Aug 26, 2026
1 route availability change recorded. No earlier prices are inferred.
- Sep 16, 2026OpenRouter · Standard
New pricing route added