DeepSeek V4 Pro Goes GA: 2% of Fable 5's Price DeepSeek V4 Pro 0813 exits preview quietly. 1.6T params MoE, 49B active, 1M context, priced at $0.87/M output — less than 2% of Claude Fable 5. Model Introduction August 13, 2026 deepseekdeepseek-v4-prollm