A year after rattling Silicon Valley with its technology, China’s DeepSeek rolled out preview versions of a new flagship artificial intelligence model, calling it the most powerful open-source platform in a challenge to rivals from OpenAI to Anthropic PBC.

Chinese artificial intelligence developer DeepSeek today released a new series of open-source large language models. V4, as the algorithm family is called, comprises two LLMs on launch. There’s the flagship V4-Pro and a smaller model called V4-Flash that trades off some output quality for lower hardware usage.

In practice, retrieval is a system with its own failure modes, its own latency budget and its own quality requirements.

Tencent Holdings Ltd. revealed a major upgrade to its foundational model, marking the first high-stakes test for China’s most valuable company to assert its place in a frenetic AI race since it recruited a top researcher from OpenAI.

After releasing its first major AI model in a year called Muse Spark, Meta now has to figure out how to turn it into a business.