union-alpha
union-alpha is behind the leaders in math. Too few results yet to rate reasoning, coding, agentic tasks, safety, long context, multimodal tasks, multilingual tasks, instruction following, or factuality.
Capability profile
Bars show the model's median result as a share of the leading model's, per capability. Select a row to see its results.
Too few results yet to rate Reasoning, Coding, Agentic, Safety, Long Context, Multimodal, Multilingual, Instruction Following or Factuality.
Price
No current price is tracked for this model. See the rate card
Evidence
7results on7benchmarks
- 7 independently verified
From 1 source · latest Sep 28, 2026 · How verification works
API features
Tool callingJSON mode
As listed by OpenRouter
union-alpha benchmark results
7 results on 7 benchmarks, grouped by capability. Each bar is the result as a share of the capability leader's; every result links to its source.
34.9% behind the leader1 of 5 ranked benchmarks measured
- LiveBench · Mathematics95.29Sep 28, 2026livebench_math@2026-06-25
0 of 6 ranked benchmarks measured
- LiveBench · Reasoning80.75Sep 28, 2026livebench_reasoning@2026-06-25
0 of 10 ranked benchmarks measured
- LiveBench · Agentic Coding54.70Sep 28, 2026livebench_agentic_coding@2026-06-25
- LiveBench · Coding82.15Sep 28, 2026livebench_coding@2026-06-25
0 of 3 ranked benchmarks measured
- LiveBench · Instruction Following59.53Sep 28, 2026livebench_instruction_following@2026-06-25
More results
Benchmarks outside the capability baskets. They are not ranked against a leader.
- livebench_data_analysis74.60Sep 28, 2026livebench_data_analysis@2026-06-25
- livebench_language85.89Sep 28, 2026livebench_language@2026-06-25
union-alpha: common questions
Who makes union-alpha?
union-alpha is made by Stealth.
What is union-alpha good at?
union-alpha is behind the leaders in math. Too few results yet to rate reasoning, coding, agentic tasks, safety, long context, multimodal tasks, multilingual tasks, instruction following, or factuality.
How many benchmarks has union-alpha been tested on?
We track 7 results for union-alpha on 7 benchmarks from 1 source, 7 of them independently verified. The latest was recorded on Sep 28, 2026.
Which API features does union-alpha support?
OpenRouter lists tool calling and json mode for union-alpha.
About this record
Where union-alpha's numbers come from, and every name it appears under.
- Tracked since
- Sep 17, 2026
- Newest source mention
- Sep 17, 2026
Where the results come from
Verification: 7 scores · 7 independently verified. How these tiers are assigned
From 1 source on 1 site. livebench.ai supplies all of them; the 7 independently verified results come from 1 site. Bars are coloured by trust tier.
- livebench.ai7