Agent Arena: GPT-6 Astra Costs Double for Modest Gains

Agent Arena's leaderboard shows GPT-6 Astra (Max) costs $3.94 per task with only an 11.7% net improvement edge, roughly double the per-task cost of Claude Fable 5.1, sparking debate over whether flagship models are worth the price.

2026-09-17 ~ 2026-09-17 · 2 related posts

• Flagship models cost 2-4x more for marginal gains: GPT-6 Astra at $3.94/task vs $1.03 — arena · 2026-09-17
• Agent Arena leaderboard: GPT-6 Astra costs $3.94/task for a 11.7% edge over cheaper models — arena · 2026-09-17