4DV.ai

Cover Block

Name	4DV.ai
Tagline	Building interactive, volumetric, and photoreal 4D video creation, playback, and editing tools.
Headquarters	Los Angeles, CA, United States
Founded	2024
Stage	Seed
Business Model	SaaS
Industry	Media / Entertainment
Technology	AI / Machine Learning
Geography	East Asia
Growth Profile	Venture Scale
Founding Team	Solo Founder
Funding Label	Seed

Links

• Website: https://www.4dv.ai/
• LinkedIn: https://www.linkedin.com/company/4dv-ai

Summary and Signal

4DV.ai is building a full-stack toolkit for creating and distributing interactive, volumetric 4D video. The company's core differentiation rests on its proprietary 4D Gaussian Splatting pipeline, which reconstructs video from multi-camera rigs into assets that allow for real-time, six-degree-of-freedom viewpoint changes directly in a web browser [4DV.ai]. This positions 4DV.ai as an attempt to productize a complex academic vision, aiming to make volumetric video production practical and scalable outside of specialized studios [OBSBOT, April 2026].

The company was founded in late 2024 by Jiaming Sun, whose technical credibility is anchored in his academic work with Zhejiang University's 3D Vision Group, where he co-authored foundational papers like 4K4D and FreeTimeGS [ruoqijin.com]. The product is offered as a SaaS platform, running on WebGL to enable access from any modern device without downloads, and it integrates features like spatial audio and the ability to repurpose existing 2D footage [websiteaid.in].

Capitalization is not publicly disclosed, but investor interest is signaled by the company's listing on major databases and a seed-stage designation. The most concrete validation of its technical execution to date is a partnership with camera manufacturer OBSBOT, which culminated in a large-scale demonstration at NAB Show 2026 using a synchronized array of approximately 60 cameras for real-time 4D capture [OBSBOT, April 2026]. Over the next 12-18 months, the critical watchpoints will be the transition from technical demonstrations to announced commercial customers, the evolution of its SaaS pricing and go-to-market motion, and any subsequent funding rounds.

Data Accuracy: YELLOW -- Core product claims and team background are well-documented, but key business metrics like funding and customer traction remain unverified.

Taxonomy Snapshot

Axis	Classification
Stage	Seed
Business Model	SaaS
Industry / Vertical	Media / Entertainment
Technology Type	AI / Machine Learning
Geography	East Asia
Growth Profile	Venture Scale
Founding Team	Solo Founder
Funding	Seed

Company Overview

4DV.ai is a 2024 venture founded by Jiaming Sun, a researcher with a background in the Zhejiang University 3D Vision Group, with the stated aim of building tools for interactive, volumetric 4D video [4DV.ai]. The company is legally incorporated in the United States, with its headquarters listed in Los Angeles, California [PitchBook]. Public records show the founder began his role in November 2024, and the company's primary public-facing milestone to date is a partnership with camera hardware maker OBSBOT, demonstrated at the NAB Show 2026 [LinkedIn] [OBSBOT, April 2026].

Jiaming Sun's academic work, including co-authorship on the CVPR 2025 paper FreeTimeGS and earlier projects like 4K4D and EasyVolcap, forms the technical lineage for the startup [Google Scholar] [ruoqijin.com]. The initial product focus, as described on its website, is on "4D video creation, playing and editing tools based on Gaussian Splatting" [4DV.ai].

Key operational milestones are concentrated in 2026. The partnership with OBSBOT resulted in a large-scale demonstration at NAB Show 2026, featuring a synchronized array of approximately 60 PTZ cameras feeding into 4DV.ai's real-time 4D capture and reconstruction pipeline [OBSBOT, April 2026].

Data Accuracy: YELLOW -- Company details confirmed by PitchBook and LinkedIn; founder background and academic lineage corroborated by multiple sources; partnership and demonstration event confirmed by OBSBOT press release.

The Product and the Stack

The core proposition is a full-stack toolkit for creating and distributing interactive, volumetric video. The product turns standard video footage into an explorable, photorealistic 3D environment that can be navigated in real time from any modern web browser [4DV.ai]. The technology is based on 4D Gaussian Splatting, a method that maps pixels from each video frame into a dense 3D point cloud, layering these points over time to create a dynamic scene across both space and time [websiteaid.in].

A key differentiator is the focus on accessibility and scalability. The system runs entirely in-browser using WebGL and the PlayCanvas engine, requiring no download or installation [4DV.ai, websiteaid.in]. It can work with existing 2D footage, allowing creators to repurpose old content into interactive experiences [websiteaid.in]. For high-fidelity capture of new content, the company has partnered with OBSBOT to demonstrate a scalable volumetric capture pipeline. At NAB Show 2026, this involved a synchronized array of approximately 60 OBSBOT Tail 2 PTZ cameras feeding into 4DV.ai's real-time 4D reconstruction system [OBSBOT, April 20, 2026].

The platform's features extend beyond visual reconstruction. It integrates spatial audio, where sound changes based on the viewer's virtual position within the scene [websiteaid.in]. It also allows for the export of depth data for use in VR and AR projects [websiteaid.in]. Performance claims from a technical demonstration note an interactive 3D video system achieving up to 467 frames per second on an RTX 4090 GPU, with a reported ~2.4 dB PSNR improvement over an older 4DGS method [LinkedIn].

Data Accuracy: YELLOW -- Core product claims are confirmed by the company website and a major partnership announcement. Specific performance metrics are sourced from a single, un-dated LinkedIn post.

The Market They Are Entering

The push for more immersive content is moving from a niche experiment to a core strategy for media and entertainment companies. According to PitchBook, the primary industry for 4DV.ai is categorized as Multimedia and Design Software [PitchBook]. A 2023 report from Grand View Research valued the global augmented and virtual reality market at $62.1 billion, projecting a compound annual growth rate of 39.8% from 2024 to 2030 [Grand View Research, 2023].

Demand for tools like 4DV.ai's is propelled by several converging trends. The proliferation of high-quality camera arrays, like the OBSBOT Tail 2 system the company demonstrated with, is lowering the barrier to volumetric capture [OBSBOT, April 2026]. Simultaneously, the consumer base for immersive content is expanding through the adoption of VR headsets, advanced gaming consoles, and spatial computing devices. The company's focus on browser-based delivery via WebGL directly addresses a key friction point: accessibility [4DV.ai].

Metric	Value
Global AR/VR Market (2023)	62.1 $B
Projected CAGR (2024-2030)	39.8 %

Data Accuracy: YELLOW -- Market sizing is drawn from an analogous sector report; specific TAM for 4D video tools is not publicly available.

The Competitive Field

4DV.ai enters a nascent but increasingly crowded field where the primary competition is not over market share, but over which technical approach and go-to-market wedge will define the commercial standard for volumetric video.

Company	Positioning	Stage / Funding	Notable Differentiator
4DV.ai	Full-stack 4D video creation & playback via 4D Gaussian Splatting; browser-first, interactive experiences.	Seed (2025); investors include First Round Capital, Sequoia Capital [Crunchbase].	Real-time, browser-based rendering with no specialized hardware; strong academic lineage in Gaussian Splatting.
4Dviews	Professional volumetric video capture studio services and proprietary hardware/software systems.	Private; established player with studio deployments.	End-to-end, high-fidelity capture solution with a focus on premium studio production for enterprise clients.
Arcturus	Cloud-based volumetric video editing, streaming, and distribution platform (Holosuite).	Acquired by Unity in 2021 [Crunchbase].	Deep integration with major game engines (Unity) and a cloud-centric workflow for post-production.
Vitro3D	Volumetric display technology for glasses-free 3D visualization, not a video creation tool.	Venture-backed; different product category.	Hardware-focused approach to 3D visualization, targeting medical imaging and digital signage.

4DV.ai's current defensible edge is its technical talent and research lineage. Founder Jiaming Sun's co-authorship on foundational papers like FreeTimeGS, 4K4D, and EasyVolcap ties the company directly to the Zhejiang University 3D Vision Group [Google Scholar]. This provides an early-mover advantage in implementing the latest Gaussian Splatting optimizations, evidenced by the claimed 467 FPS performance on consumer GPUs [LinkedIn post].

Data Accuracy: YELLOW -- Competitor profiles are confirmed via Crunchbase and company websites; 4DV.ai's differentiation claims are based on its own materials and technical write-ups, with performance metrics from a single LinkedIn post.

Opportunity

The prize for 4DV.ai is the potential to become the default software layer for creating and distributing interactive, volumetric video. The partnership with OBSBOT, demonstrated at NAB Show 2026, shows a path to making volumetric capture scalable outside a traditional studio [OBSBOT, April 2026].

Scenario	What happens	Catalyst
Creator Tool Dominance	4DV.ai becomes the go-to software for digital artists and video producers to add interactive 4D layers to their work, distributed via social platforms.	Integration as a recommended tool by a major creator platform (e.g., Douyin, Bilibili) or plugin for a dominant creative suite like Adobe.
B2B Capture-as-a-Service	The company evolves from a software toolkit into a service provider for high-end volumetric video production for film, sports, and live events.	Securing a flagship production deal with a major studio or sports league following the proof-of-concept at NAB Show 2026.

Data Accuracy: YELLOW -- The core product vision and technical demonstrations are well-documented, but growth scenarios and market size are extrapolated from early signals and partnerships rather than established commercial traction.

Sources

1. [4DV.ai] 4DV.ai - Building the future of visual media | https://www.4dv.ai/
2. [PitchBook] 4DV.ai 2026 Company Profile: Valuation, Funding & Investors | https://pitchbook.com/profiles/company/1420818-22
3. [LinkedIn] 4DV.ai | https://www.linkedin.com/company/4dv-ai
4. [OBSBOT, April 2026] OBSBOT and 4DV.ai Launch Scalable Volumetric Capture System at NAB Show 2026 | https://www.obsbot.com/news/4dv-volumetric-capture-nab-show-2026
5. [Google Scholar] Jiaming Sun | https://scholar.google.com/citations?user=dYLKTPUAAAAJ&hl=en
6. [ruoqijin.com] How 4dv.ai Works: The Technology, the Team, and Why It’s All Demos | https://ruoqijin.com/blog/how-4dv-ai-works/
7. [websiteaid.in] 4DV.ai: Redefining Video with 4D Gaussian Splatting | https://websiteaid.in/4dv-ai-4d-gaussian-splatting
8. [Grand View Research, 2023] Augmented and Virtual Reality Market Size, Share & Trends Analysis Report | https://www.grandviewresearch.com/industry-analysis/augmented-reality-ar-market
9. [Biunivoca] 4DV AI: The Future of 360° Videos | https://www.biunivoca.com/en/blog/4dv-ai-the-future-of-3600-videos
10. [Crunchbase] 4DV.ai - Crunchbase Company Profile & Funding | https://www.crunchbase.com/organization/4dv-ai
11. [4Dviews] About us - 4Dviews - Volumetric video capture technology | https://www.4dviews.com/about-us
12. [LinkedIn post] 4DV AI introduces interactive 3D video system | https://www.linkedin.com/company/4dv-ai/posts/