One year after shocking Silicon Valley, DeepSeek unveiled V4 Flash and V4 Pro - its most powerful models yet.
DeepSeek V4 Pro claims top-tier coding performance. Early tests show it rivals GPT-5.4 on structured code generation tasks.
Big leaps in multi-step reasoning and agentic tasks. V4 can plan, execute, and self-correct complex workflows.
DeepSeek maintains significantly lower API costs than OpenAI or Anthropic - a serious edge for cost-sensitive applications.
V4 puts real pressure on OpenAI and Anthropic. GPT-5.4 and Claude Mythos 5 now face a leaner, cheaper Chinese challenger.