Agent Arena Adds New GPT-5.6 Variants

The Agent Arena leaderboard has introduced three new GPT-5.6 variants: Sol, Terra, and Luna. Notably, GPT-5.6 Sol achieved a 10.1% net improvement in the xHigh tier, securing a top spot on the leaderboard.

2026-07-28 ~ 2026-07-28 · 2 related posts

• Agent Arena puts GPT-5.6 Sol at +10.1% in agent-task net improvement — arena · 2026-07-28
• Agent Arena leaderboard adds GPT-5.6 Sol, Terra and Luna near the top — arena · 2026-07-28