GPT-5.6 Luna Beats Gemini 3.7 Flash in Bug-Fixing While Costing Far Less

In a benchmark with 105 preset bugs in real codebases, OpenAI's cheapest agent model GPT-5.6 Luna outperformed Google's Gemini 3.7 Flash, which fixed fewer bugs at roughly 4.7x the cost.

2026-08-25 ~ 2026-08-25 · 3 related posts

• Benchmark: Google's Gemini Flash Underperforms OpenAI's Luna in Bug Fixing and Cost — PawelHuryn · 2026-08-25
• Gemini 3.7 Flash loses to GPT-5.6 Luna in bug fix benchmark, costs 4.7x more — PawelHuryn · 2026-08-25

1 near-duplicate retellings: LyalinDotCom