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	Title	Category	Description	Link	Address	Phone Number	Type

OpenAI’s principal U.S. headquarters is located at 3180 18th Street, Suite 100, San Francisco, California 94110, United States. In its corporate filings, OpenAI, L.L.C. is also registered at this address.

In addition, in some legal and operational documents, OpenAI uses a secondary address in San Francisco: 3180 18th St, San Francisco, CA 94110, United States. Because OpenAI has grown and shifted office space over time, note that the 18th Street site had been part of its historic headquarters footprint (the “Pioneer Building”) but the company has at times scaled into additional or alternative premises.

General Information

Industry:	Artificial intelligence
HQ Address:	3180 18th St, San Francisco, CA 94110, United States
Zip code:	94110
WhatsApp:	+1 800-242-8478
Founded:	December 8, 2015
Website:	openai.com

OpenAI is a leading artificial intelligence research and deployment organization operating at the intersection of advanced AI innovation, commercial product development, and global policy engagement. Its industry spans AI research, machine learning platforms, AI model deployment services, API infrastructure, and AI-powered applications. OpenAI develops and provides a suite of products and services, such as the GPT family of large language models, DALL·E (for image generation), Codex (for code generation/assistance), and tools that integrate AI into customer-facing and enterprise systems.

Its mission is centered on ensuring that artificial general intelligence (AGI) benefits all of humanity, with a particular emphasis on safety, alignment, and broad access. The company serves users and partner organizations worldwide, making its technology available across multiple regions through cloud APIs, integrations, and localized deployments.

OpenAI — Products & Services

OpenAI’s portfolio spans both foundational AI models and end-user applications or APIs. The GPT series (GPT-3, GPT-3.5, GPT-4, and newer variants) are central to its offerings, providing natural language understanding and generation capabilities. Beyond language models, OpenAI offers DALL·E for image synthesis (translating descriptive prompts into images), Codex for programming assistance (including powering tools like GitHub Copilot), and other application-level tools or extensions integrating AI into software systems and business workflows.

OpenAI also provides a managed API infrastructure, licensing, and enterprise partnership services, enabling organizations to embed its models in products, platforms, or internal systems. More recently, OpenAI has announced the forthcoming OpenAI Jobs Platform, an AI-powered hiring / talent matching service slated for launch around mid-2026, which will directly compete with platforms like LinkedIn in matching candidates to job roles using AI algorithms.

In addition to these, OpenAI invests in research, alignment, safety, policy work, and partnership with governments and institutions to guide responsible development of AI.

OpenAI — Subsidiaries & Acquisitions

OpenAI has expanded its structure and holdings through acquisitions and subsidiaries. One significant acquisition is io (company), a hardware design firm founded by Jony Ive, which OpenAI acquired in May 2025 to lead its hardware product development efforts.

This move indicates OpenAI’s intention to not only offer AI software but also to integrate more deeply with custom devices or hardware infrastructure. On the corporate side, OpenAI operates through various legal entities, such as OpenAI Ireland Ltd (for European operations) and OpenAI, L.L.C. (U.S. operations). It also absorbs or partners with startups in AI, cloud infrastructure, and tooling. Over time, OpenAI has acquired or merged with organizations in adjacent fields (e.g. digital infrastructure, tooling) to strengthen its ecosystem.

Contact Information

Business Partnerships & Enterprise Sales: OpenAI has a dedicated form for companies interested in integrating or scaling with its models (like GPT-4, DALL·E, and enterprise APIs). You can access it via the official OpenAI for Business page: https://openai.com/enterprise
General Business Inquiries: You can reach OpenAI through their main contact page: https://openai.com/contact
Customer & Developer Support: For technical, billing, or product-related business support, OpenAI uses its help center: https://help.openai.com
API Support & Documentation: Visit the developer portal at https://platform.openai.com
API Email Contacts: In some cases, API support may direct you to use [email protected] (for account/API issues) or to use the in-dashboard help widget.

FAQ’s

Does OpenAI use Reddit data to train its AI models?

OpenAI trains its advanced models, such as GPT-4, using a combination of licensed data, publicly available information from the internet, and data created by human trainers. Among these sources, Reddit content is considered publicly accessible, except for posts behind paywalls or within private communities, making it part of the vast text data used for training.

In May 2024, Reddit formalized this relationship by announcing a data licensing agreement with OpenAI, granting the company direct access to Reddit’s Data API. This partnership allows OpenAI to incorporate Reddit content in a more structured, reliable, and officially licensed way, enhancing the development of future models and product features.

What is the biggest source of training data for OpenAI models?

The biggest share of data comes from publicly available internet content (things like Wikipedia, news sites, blogs, discussion forums, code repositories, and other open sources). Reddit is one of the more influential datasets because it contains diverse, human-style conversations.

Does OpenAI have regional offices?

OpenAI has expanded globally and maintains regional offices and hubs in multiple countries and cities. In Europe, it has entities and offices in London, Dublin, Paris, and Brussels. In Asia, the company has established presence in Tokyo and Singapore, and more recently announced plans for a Seoul, South Korea office. In the U.S., OpenAI also opened an office in Bellevue, Washington (a Seattle area location) to be proximate to its strategic partner Microsoft.

Where can I find job opportunities at OpenAI?

To explore job opportunities at OpenAI, the best place to start is the official hiring portal at (https://openai.com/careers), where all available roles are listed. In addition to full-time positions, OpenAI also offers internships and residency programs designed for students and early-career researchers. These opportunities provide valuable hands-on experience and often serve as excellent stepping stones to long-term careers within the organization.