
Budget AI Coding Models Compared July 2026: V4 Flash vs Luna vs Gemini 3.5 Flash vs Haiku 4.5
The sub-$1.50 coding tier just got serious: DeepSeek V4 Flash 0731 posts frontier-adjacent agent scores at $0.14/$0.28, GPT-5.6 Luna dropped 80% to $0.20/$1.20, and Gemini 3.5 Flash and Claude Haiku 4.5 hold the hosted middle. Prices verified July 31, 2026.











