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DeepSeek’s first external fundraising round has escalated far beyond its original scope. What began in mid-April as a roughly $300 million raise at a $10 billion valuation has become, according to reporting by the Financial Times, Reuters, and Bloomberg published May 6, a $3–4 billion round at a $45 billion valuation led by China’s most strategically significant government investment vehicle.

The lead investor in talks is the China Integrated Circuit Industry Investment Fund — universally known in the industry as the “Big Fund.” Since its founding in 2014, the Big Fund has deployed over $50 billion across three successive phases into Chinese chip design, fabrication, memory production, and equipment companies. Its third phase, assembled in 2024, holds $47 billion from the finance ministry, local governments, and state-owned banks with a mandate focused on semiconductor equipment and materials.

Until now, it had not publicly backed any of China’s large language model players.

The Valuation Trajectory

The speed at which DeepSeek’s implied value has moved tells the story:

Date	Reported Valuation	Milestone
April (opening)	$10B	Initial internal discussion
April 22	$20B+	Bloomberg confirms Tencent and Alibaba in talks
May 6	$45B	FT reports Big Fund as lead investor

Four people with knowledge of the discussions told the Financial Times of the Big Fund’s involvement. Tencent remains in talks for a stake. DeepSeek’s founder Liang Wenfeng, who controls 89.5% of the company through personal holdings and affiliated entities, is directly involved in the negotiations and may invest personally in this round.

Reuters reported that a second state vehicle — China’s 60-billion-yuan ($8.8 billion) National Artificial Intelligence Industry Investment Fund, founded in January 2025 — is also in talks to participate.

Why DeepSeek Is Raising Now

DeepSeek has operated since its 2023 founding on funding entirely from High-Flyer Capital Management, Liang’s quantitative hedge fund. For the better part of two years, Liang explicitly declined outside capital.

The shift has two drivers. The first is practical: DeepSeek V4, its trillion-parameter flagship launched on April 24, 2026, requires compute at a scale that even High-Flyer’s balance sheet struggles to sustain alone. The company is also facing intensified competition inside China from Alibaba (35.8% cloud AI market share), Tencent (¥18 billion AI spend in 2025, planned to double in 2026), ByteDance, MiniMax, and Moonshot AI — all of which have raised external capital and are actively poaching DeepSeek researchers. Luo Fuli, formerly a key DeepSeek researcher, left to lead Xiaomi’s MiMo team.

The second driver is Beijing. The state-backed lead investor framing is not incidental. China has been tightening controls around frontier AI companies — blocking Meta’s $2 billion acquisition of Manus, requiring AI firms to seek government clearance before accepting US investment, and accelerating the domestic AI-chip ecosystem. DeepSeek’s V4 was optimised to run inference on Huawei Ascend 950PR chips, the domestic alternative to NVIDIA hardware blocked by export controls.

What State Backing Changes

A Big Fund-led round transforms DeepSeek from an independently funded research lab into a state-backed national champion. The trade-offs are substantial.

On the upside: access to state-aligned customers and state-owned enterprise procurement, regulatory protection, and a strategic alignment that has historically insulated Big Fund portfolio companies from policy headwinds.

On the downside: the open-weight release strategy that made DeepSeek globally significant may come under pressure. State investors typically bring expectations around content controls, data localisation, and preference for domestic strategic customers. Whether DeepSeek continues to release model weights under its current permissive terms after a Big Fund investment is not a settled question.

The round has not closed. No party — DeepSeek, the Big Fund, or Tencent — has publicly commented.