Verify any claim · lenz.io
“OpenAI released GPT-4 in March 2023.”
The conclusion
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.
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Sources
Sources used in the analysis
GPT-4 | OpenAI March 14, 2023 # GPT‑4 … We’ve created GPT‑4, the latest milestone in OpenAI’s effort in scaling up deep learning.
March 14 (Reuters) - The startup OpenAI on Tuesday said it is beginning to release a powerful artificial intelligence model known as GPT-4, setting the stage for human-like technology to proliferate and more competition between its backer Microsoft Corp(MSFT.O), opens new tab and Alphabet Inc's(GOOGL.O), opens new tab Google.
The company behind the ChatGPT chatbot has on Wednesday, March 15 rolled out its latest artificial intelligence model, GPT-4, in a new advance for the technology that’s caught the world’s attention.
We report the development of GPT-4, a large-scale, multimodal model which can accept image and text inputs and produce text outputs. … We ran GPT-4 multiple-choice questions using a model snapshot from March 1, 2023, whereas the free-response questions were run and scored using a non-final model snapshot from February 23, 2023.
We conducted internal adversarial testing GPT-4-launch on March 10, 2023.
We report the development of GPT-4, a large-scale, multimodal model which can accept image and text inputs and produce text outputs. … We ran GPT-4 multiple-choice questions using a model snapshot from March 1, 2023, whereas the free-response questions were run and scored using a non-final model snapshot from February 23, 2023.
Millions of developers have requested access to the GPT‑4 API since March, and the range of innovative products leveraging GPT‑4 is growing every day.
After months of rumors and speculation, OpenAI has announced GPT-4: the latest in its line of AI language models that power applications like ChatGPT and the new Bing.
On Tuesday, OpenAI announced GPT-4, a large multimodal model that can accept text and image inputs while returning text output that “exhibits human-level performance on various professional and academic benchmarks,” according to OpenAI.
March 14, 2023 # GPT‑4 We’ve created GPT‑4, the latest milestone in OpenAI’s effort in scaling up deep learning.
March 14, 2023 We’ve created GPT-4, the latest milestone in OpenAI’s effort in scaling up deep learning.
GPT-4 was released on March 14, 2023.
The New York Times reported that GPT-4 is expected to be released in the first quarter of 2023.
The New York Times reported that GPT-4 is expected to be released in the first quarter of 2023.
We report the development of GPT-4, a large-scale, multimodal model which can accept image and text inputs and produce text outputs. … We ran GPT-4 multiple-choice questions using a model snapshot from March 1, 2023, whereas the free-response questions were run and scored using a non-final model snapshot from February 23, 2023.
Please cite this work as “OpenAI (2023)".
Please cite this work as “OpenAI (2023)".
GPT‑4 is the latest milestone in OpenAI’s effort in scaling up deep learning.
GPT-4 is here! OpenAI's newest language model - Announcements - OpenAI Developer Community … logankilpatrick March 14, 2023, 8:51pm 1 Announcing GPT-4, a large multimodal model, with our best-ever results on capabilities and alignment: GPT-4
GPT-4 is here! OpenAI's newest language model - Announcements - OpenAI Developer Community … logankilpatrick March 14, 2023, 8:51pm 1 Announcing GPT-4, a large multimodal model, with our best-ever results on capabilities and alignment: GPT-4
Announcing GPT-4, a large multimodal model, with our best-ever results on capabilities and alignment: GPT-4 … If you are a ChatGPT Plus subscriber, you can access GPT-4 right now!
March 14, 2023 We’ve created GPT-4, the latest milestone in OpenAI’s effort in scaling up deep learning.
GPT-4 was rolling out over the course of a few hours to Plus subscribers, you should see it now!
Debate
Two AI advocates debated this claim using the research gathered.
Argument for
Official announcements from OpenAI and corroborating reports from major news outlets definitively establish that GPT-4 was released on March 14, 2023 (Sources 1, 2, 10). Authoritative coverage from Reuters and AP News further confirms this mid-March rollout, leaving no doubt that the claim is entirely accurate (Sources 2, 3).
The Proponent commits a fallacy of false precision by treating Reuters' description of OpenAI 'beginning to release' the model (Source 2) and AP's explicit March 15 rollout date (Source 3) as if they seamlessly corroborate a single March 14 event, when in fact these sources actively contradict each other and OpenAI's own press materials (Sources 1, 10, 11, 22) on the exact date. This internal inconsistency across the Proponent's own cited evidence, combined with the System Card's confirmation of internal 'launch' testing on March 10 (Source 5) and technical report snapshots from late February (Sources 4, 6, 15), demonstrates that no clean, universally agreed single-date 'release' occurred in the way the atomic claim implies.
Argument against
A closer inspection of the internal GPT-4 Technical Report (Sources 4, 6, 15) reveals the model snapshots used for evaluation date to February 23 and March 1, 2023, and the System Card (Source 5) confirms internal adversarial 'launch' testing occurred on March 10, 2023 — meaning the model was already finalized and being tested well before the so-called 'release,' undermining the notion of a single clean March 2023 release event and suggesting the timeline is far messier than the simplified claim implies. Furthermore, AP News (Source 3) reports the rollout actually occurred on March 15, not March 14, directly contradicting OpenAI's own press release (Sources 1, 10, 11, 22) and Reuters' characterization of it merely 'beginning to release' the model, exposing inconsistent reporting across sources that undercuts confidence in any precise single-date claim of release in March 2023.
The Opponent conflates internal development milestones with public availability, as internal testing in February and early March (Sources 4, 5) is a standard prerequisite that perfectly aligns with a subsequent public release. Furthermore, the Opponent's fixation on whether the exact rollout occurred on March 14 or March 15 (Sources 1, 2, 3) is a red herring, because both dates definitively prove the core claim that GPT-4 was released in March 2023.
Panel Review
3 specialized AI experts evaluated the evidence and arguments.
Reviewer 1 — The Logic Examiner
OpenAI's dated March 14 announcement (Sources 1 and 10), Reuters' report that it began releasing GPT-4 that day (Source 2), and AP's report of rollout on March 15 (Source 3) directly establish public release in March 2023; the pre-release testing and model snapshots in Sources 4–5 are not contrary evidence. The one-day difference can concern announcement versus rollout timing and does not negate the month-level claim, so the claim is true.
Reviewer 2 — The Source Auditor
Sources 1, 2, 10, 11, 22 (OpenAI's own official announcement pages and archived versions) and corroborating major wire/tech coverage from Reuters (Source 2), AP News (Source 3), The Verge (Source 8), and Ars Technica (Source 9) all converge on GPT-4 being announced and released on March 14, 2023, with AP's mention of March 15 reflecting only a minor timezone/publication-date discrepancy in reporting on the same rollout event, not a substantive contradiction; internal testing dates in the Technical Report and System Card (Sources 4, 5, 6, 15) reflect pre-release development snapshots, which is standard practice and does not undermine the public release date. The claim that OpenAI released GPT-4 in March 2023 is unambiguously confirmed by highly reliable, independent sources including OpenAI's own primary documentation and top-tier wire services, so the verdict is True.
Reviewer 3 — The Precision Analyst
The evidence overwhelmingly supports the claim that OpenAI released GPT-4 in March 2023, with multiple sources (Sources 1, 2, 3, 8, 9, 10) confirming the release occurred on or around March 14-15, 2023. The claim's scope and wording are perfectly aligned with the evidence, as it only specifies the month and year, which is undisputed.
Panel summary
Primary OpenAI announcements and technical documentation establish that GPT-4 was publicly released on March 14, 2023. Independent reporting from Reuters, AP, The Verge, and Ars Technica corroborates the March 2023 rollout. The reasoning is direct, and the claim's month-level precision avoids any material conflict arising from reports dated March 14 or March 15. Pre-release testing dates describe development rather than public availability and do not undermine the claim.