Mystery Model Union Alpha Tops DeepSWE Leaderboard

A stealth model called Union Alpha scored 74% on DeepSWE, beating GPT-5.6 Sol and matching GPT-6 Astra while being cheap or even free with zero data retention. Some argue the benchmark itself is now saturated.

2026-09-17 ~ 2026-09-17 · 3 related posts

• Mystery model 'Union Alpha' tops DeepSWE, claiming GPT-6-class capability at DeepSeek-level prices — daniel_mac8 · 2026-09-17
• Union Alpha scores 74 on DeepSWE matching GPT-6 Astra, but benchmark may be saturated — brandon_galang · 2026-09-17
• Stealth model Union Alpha scores 74% on DeepSWE, beating GPT-5.6 Sol at lower cost — ZeroStateReflex · 2026-09-17