Union Alpha
Union Alpha is 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. 262,144 token context window.. It is ranked #9 on the Dev Radar, in AI dev tools, first seen 3 days ago and shared in 12 posts (2M views).
What people said about Union Alpha on X
🥷 New stealth model: Union Alpha (@unionalphaai) A multimodal model for research, coding, and agentic workflows. - Free to use - 256K context - Tool calling - Frontier-level general-purpose performance Try it now and share your feedback: https://openrouter.ai/stealth/union-alpha
— @OpenRouter, 3 days ago · 2.7k likes · see the post
Here's the DeepSWE result for Union Alpha, a stealth model we just launched. Try it now! Works in every harness. $ ori [code | your-fav-harness] --model=stealth/union-alpha
— @alexatallah, 3 days ago · 2.1k likes · see the post
Significantly more capacity for Union Alpha is coming online tomorrow morning Thanks for bearing with the hiccups in the meantime!
— @OpenRouter, 2 days ago · 498 likes · see the post
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Union Alpha in numbers
- Rank on the Dev Radar: #9 of 1225
- Shared in 12 posts by 11 accounts: @OpenRouter, @alexatallah, @eliebakouch, @aliceisplaying
- 2M views on those posts
- First seen 3 days ago, last shared 2 days ago
- Pricing seen by Jev: not stated
- Market: AI dev tools
FAQ
What is 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. 262,144 token context window. It was first shared on X 3 days ago and is ranked #9 on the Dev Radar.
Is Union Alpha free?
Pricing is not stated on the page we read.
Who shared Union Alpha?
11 accounts on X, including @OpenRouter, @alexatallah, @eliebakouch, in 12 posts totalling 2M views.
Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 11.2k posts from 4.9k X accounts over the last 21 days, 1.2k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-19 16:21 UTC. Full method.