Startup profile · funding coverage
SUNMMIO funding, valuation and investors
China-based 3D TokenPU processors for AI inference.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Pre-A2 (including extension) and Series A
Undisclosed; nearly RMB2B cumulative financing over one year · October 14, 2026
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
Not publicly disclosed
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
series a · Beijing, China
Investors in latest funding
Lead: E-Town Capital (亦庄国投) , Other Beijing state-backed platforms, unnamed
Overview
Beijing semiconductor company, known as 算苗科技, developing 3D-stacked processors for large-model inference. The latest disclosed transactions are Pre-A2, its extension and Series A; individual round amounts were not disclosed.
Why SUNMMIO is interesting
SUNMMIO combines memory stacking with inference-specific architecture to address data movement. Commercial value depends on yield, thermal behavior, software compatibility and delivered workload economics.
Product & use cases
3D TokenPU architecture vertically stacks memory and logic for model inference. Investor announcement says first-generation A4E taped out in June 2026.
- Inference acceleration for large language models.
Key facts
- Nearly RMB2B is cumulative one-year funding, not the size of the October financings.
- 16TB/s bandwidth is a design claim, not an independently verified production benchmark.
Funding history (newest first)
Pre-A2 (including extension) and Series A
2026-10-14 Undisclosed; nearly RMB2B cumulative financing over one year- E-Town Capital (亦庄国投) (lead)
- Other Beijing state-backed platforms, unnamed (lead)
Source: https://finance.sina.com.cn/tech/roll/2026-10-14/doc-inivekpp8497177.shtml
Investors in our directory
Funds linked from SUNMMIO's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: A domestic 3D integration supply chain and architecture focused on reducing memory movement, subject to volume-production and customer benchmarks.
Competes with general-purpose GPUs and inference-specialist accelerators. Memory bandwidth alone does not establish tokens per second, total cost or software compatibility.
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NVIDIA incumbent
GPU ecosystem and mature inference software.
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Huawei Ascend alternative
Domestic accelerator stack for China-based workloads.
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Cambricon alternative
Chinese AI processor supplier.
Industries
Market / IPO context
Editorial / static context — not a live quote.
Related funding articles
Venture Capital Tracker pieces that cover SUNMMIO's financing or category context.
FAQs about SUNMMIO
Practical answers founders, operators, and investors typically search for.
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