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OpenAI publicly released GPT-4 on March 14, 2023.

The Claim

OpenAI released GPT-4 in March 2023.

Verified by Lenz ·

The Short Version

Reliable primary documentation and independent news reporting confirm that OpenAI released GPT-4 in March 2023. Most sources identify March 14 as the announcement and initial rollout date; reporting dated March 15 reflects publication timing or the continuing rollout, not a substantive contradiction.

Caveats

  • Initial access was phased through ChatGPT Plus and a limited API rollout rather than universal availability.
  • Some coverage appeared on March 15, but this does not conflict with the month-level claim.
  • Community forum posts are weaker sources, though authoritative and independent sources confirm the release date.

The Receipts

  1. GPT-4 | OpenAI

    go.nature.com

  2. Microsoft-backed OpenAI starts release of powerful AI known as GPT-4 | Reuters

    reuters.com

  3. What can ChatGPT maker's new AI model GPT-4 do? | AP News

    apnews.com

  4. [PDF] GPT-4 Technical Report - OpenAI

    cdn.openai.com

  5. [PDF] GPT-4 System Card | OpenAI

    cdn.openai.com

  6. GPT-4 Technical Report

    cdn.openai.com

  7. GPT-4 API general availability and deprecation of older models in the Completions API | OpenAI

    openai.com

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

    theverge.com

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

    arstechnica.com

  10. GPT-4

    openai.com

+ 13 more sources — see the full list on Lenz

Filed Under

GPT-4OpenAI

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