Chinese artificial intelligence (AI) startup Moonshot AI on Thursday released its latest model, Kimi K3, which features 2.8 trillion parameters, making it the largest-parameter open-source AI model globally, the company said.
Kimi K3 natively supports visual understanding and boasts a context window of 1 million tokens. It has been optimized for complex tasks including software engineering, knowledge-intensive work, deep research and multimodal understanding, Moonshot AI noted.
Kimi K3's overall intelligence level is close to that of globally leading closed-source models as revealed by evaluations, according to the Beijing-based startup.
"We have open-sourced the complete model weights and distilled the core technologies into a toolchain, making it fully accessible to the public," said Fu Qiang, a technician with Moonshot AI.
With continued breakthroughs in core technologies, Chinese open-source large models have grown into a core supplier of the global AI ecosystem.
"Previously, cutting-edge models were mostly in the hands of a few closed-source platforms, so companies could only really 'buy' the capabilities they needed. But with the rise of mature open-source models, businesses can now build on their own data, workflows, and domain expertise to develop AI applications that are far better suited to their real-world use cases," said Zhong Xinlong, an associate researcher at the Future Industries Research Center of the China Center for Information Industry Development.
According to the World Intellectual Property Organization, China now accounts for over 60 percent of global AI patent applications, the highest share worldwide.
Chinese company releases world's largest open-source AI model
Chinese company releases world's largest open-source AI model
The 9th Hongqiao International Economic Forum opened in Shanghai on Thursday, convening business leaders and representatives from around the world to explore paths to a more open global economy together.
The two-day event is being held at the National Exhibition and Convention Center under the theme "Stability and Cooperation: Building an Open World Economy Together," bringing a series of parallel sessions and report releases alongside the main discussions.
Now in its ninth edition, the forum has grown into a premier platform for dialogue on global economic cooperation, with a series of parallel sessions and report launches running alongside the main discussions.
A major highlight was the unveiling of the World Openness Report 2026, which showed that global openness tightened significantly in 2025, even as emerging and developing economies moved in the opposite direction, with China continuing to rank at the forefront among them.
Chinese and international experts at the gathering urged countries worldwide to join hands in fostering global openness and cooperation based on mutual trust, inclusiveness and accessibility.
Also making its debut was the Export-to-China Capacity Development Report, which analyzes China's market demand and import policies from multiple perspectives and aims to help other countries, particularly those in the Global South, enhance their capacity to export to the Chinese market.
The parallel sessions covered a broad agenda, from China's development achievements in the 25 years since its accession to the World Trade Organization to free and fair trade, cooperation on industrial competitiveness, and Hong Kong's new opportunities as its development strategies align with the 15th Five-Year Plan.
Discussions also turned to global economic rebalancing and innovation in the humanoid robot and embodied AI industries, with several research reports released during the sessions.
The forum is running alongside the 9th China International Import Expo (CIIE), which opened in Shanghai the same day, drawing more than 4,100 overseas exhibitors from 148 countries and regions.
First held in 2018 as the world's first national-level expo dedicated to imports, the CIIE has since evolved into a vital gateway for foreign businesses seeking access to China's vast consumer and industrial markets.
9th Hongqiao Forum opens in Shanghai, exploring paths to a more open global economy
