Scheduled for retirement on Dec 31, 2098. Still available at the prices below until then.
Context
262K
Max output
131K
Serving providers
1
Cheapest input
Free tier only
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.
Pricing by serving provider
standard tier · per 1M tokens · click a provider to expand| Serving provider | Input /1M | Output /1M | Endpoints | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OpenRouter | Free tier only | — | 1 | |||||||||||||
| ||||||||||||||||
Price history
OpenRouter routed quoteOpenRouter's price is a routed quote. It moves with whichever upstream route OpenRouter prefers that day, so we do not track it as a price history.
Cost calculator
estimate your monthly spend on this model$0
estimated / month
Model IDs
copy the exact identifier for your platformstealth/union-alpha
Frequently asked questions
Union Alpha pricing, context and availabilityIs Union Alpha still available?
Yes. Union Alpha is scheduled for retirement on 2098-12-31.
What is the context window of Union Alpha?
Union Alpha accepts up to 262K tokens of context and can return up to 131K output tokens.
What can Union Alpha do?
Union Alpha supports image input (vision), tool use and structured output.
Other Other models
compare pricing across the Other lineupStep 3.7 Flash$0.20/1M · 5 providersMuse Glimmer 30B$0.30/1M · 5 providersMuse Spark 1.2$1.25/1M · 4 providersMuse Spark 1.3$1.25/1M · 4 providersMuse Spark 1.2 Contributor$0.10/1M · 3 providersMuse Spark 1.3 Contributor$0.10/1M · 3 providersHy4 preview$0.834/1M · 3 providersMuse Spark 1.1$1.25/1M · 3 providers
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Sep 17, 2026
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