NVIDIA highlights OpenAI model training on GB200 NVL72 systems
In a corporate blog post, NVIDIA highlights that leading frontier artificial intelligence developers continue to train and deploy advanced foundation models on its hardware stack. The company notes that OpenAI utilized NVIDIA Hopper and GB200 NVL72 systems to train and run models including GPT-5.2 and GPT-5.3 Codex, reinforcing NVIDIA's central position as the primary compute provider for next-generation agentic and reasoning architectures. Claims are as reported; this summary makes no determination about accuracy or significance.
- First detected
- Sep 3, 2026
- Last updated
- Sep 3, 2026
Moderate confidence
Reported by the organization responsible for the announcement.
Limited corroboration
No independent reporting recorded yet.
What does this mean?
Corroboration measures how many genuinely independent sources support the event. Confidence measures how reliable the available evidence appears.
No material changes recently.
Stable
No recent reporting has materially changed the known facts.
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Why it matters
Frontier AI development remains tightly coupled to specialized GPU and networking hardware. OpenAI's deployment on GB200 NVL72 systems underscores NVIDIA's enduring dominance in high-performance AI infrastructure despite increasing competition from custom silicon and rival chipmakers, cementing high compute switching costs for major lab ecosystems.
Coverage
Primary/vendor sources vs independent reporting
Primary / vendor source: information published directly by the company, organization, government body or project involved. Useful as a primary source, but not independent confirmation.
Independent reporting: reporting or analysis from a source independent of the organization making the underlying claim.
Timeline
Sep 18, 2026
Development status changed
New → Stable — new reporting is no longer substantially changing the known facts
Sep 3, 2026
Development detected
Dec 11, 2025
New reporting added
As AI Grows More Complex, Model Builders Rely on NVIDIANVIDIAPrimary source
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