Sunday, Sep 6, 2026 The claims desk. Receipts included. POWERED BY LENZ
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OpenAI officially released GPT-4 on March 14, 2023.

The Claim

OpenAI released GPT-4 on March 14, 2023.

The Short Version

Contemporaneous evidence confirms that OpenAI released GPT-4 on March 14, 2023. OpenAI’s announcement is independently corroborated by Reuters, Bloomberg, and other major outlets. Access was initially phased, but that does not alter the official release date.

Caveats

  • Initial access was limited through ChatGPT Plus and an API waitlist rather than being universally available.
  • The GPT-4 technical report’s March 15 arXiv date is a publication timestamp, not the product release date.

The Receipts

  1. GPT-4 - OpenAI

    openai.com

  2. Microsoft-backed OpenAI starts release of powerful AI known as ...

    reuters.com

  3. ChatGPT Creator OpenAI Debuts New GPT-4 AI System - Bloomberg

    bloomberg.com

  4. OpenAI announces GPT-4 AI language model | The Verge

    theverge.com

  5. OpenAI releases GPT-4, a multimodal AI that it claims is state-of-the-art | TechCrunch

    techcrunch.com

  6. OpenAI’s GPT-4 exhibits “human-level performance” on professional benchmarks - Ars Technica

    arstechnica.com

  7. OpenAI releases GPT-4, artificial intelligence that can 'see' and do taxes

    nbcnews.com

  8. OpenAI announces ChatGPT successor GPT-4

    bbc.com

  9. GPT-4 Technical Report - ADS - Astrophysics Data System

    ui.adsabs.harvard.edu

  10. GPT-4 Technical Report

    cdn.openai.com

+ 19 more sources — see the full list on Lenz

Filed Under

GPT-4OpenAI

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