DeepSeek V4-Pro Launches at 98% Lower Cost Than GPT-5.5 Pro
DeepSeek released preview versions of DeepSeek-V4-Pro and DeepSeek-V4-Flash on April 24, 2026, both open-weight models with one million token context windows and pricing significantly below comparable Western alternatives. The V4-Pro model costs $1.74 per million input tokens and $3.48 per million o






