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the claim

GitHub Copilot was originally powered by OpenAI's Codex model.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
7 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that GitHub Copilot was originally powered by OpenAI's Codex model?

Yes. Two reference works state directly that GitHub Copilot was originally powered by OpenAI's Codex, and a book states Copilot is powered by OpenAI's Codex algorithm; several other sources describe Copilot as using Codex without specifying it was the original model.

Verdict: SUPPORTED · 7 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 7
GitHub Copilot
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GitHub Copilot. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/GitHub_Copilot

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More for · 6
OpenAI Codex (language model)
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OpenAI Codex (language model). (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/OpenAI_Codex_(language_model)

Natural Language Generation and Understanding of Big Code for AI-Assisted Programming: A Review
Get citation
Natural Language Generation and Understanding of Big Code for AI-Assisted Programming: A Review. (n.d.). cir.nii.ac.jp. https://doi.org/10.3390/e25060888

Coding with AI
2025
Get citation
Morgan, J. (2025). Coding with AI. play.google.com. https://play.google.com/store/books/details?id=UayEEQAAQBAJ&source=gbs_api

Building Reliable AI Systems
2026
Get citation
Shahani, R. (2026). Building Reliable AI Systems. play.google.com. https://play.google.com/store/books/details?id=XNzuEQAAQBAJ&source=gbs_api

Language Models and Simple, Stupid Bugs
2023
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Jesse, K., Ahmed, T., & Devanbu, P. (2023). Language Models and Simple, Stupid Bugs. zenodo.org. https://doi.org/10.5281/zenodo.7743263

ВИКОРИСТАННЯ ТЕХНОЛОГІЙ ШТУЧНОГО ІНТЕЛЕКТУ У ВЕБ-ДИЗАЙНІ
2024
Get citation
Євген, Г. & Надія, О. (2024). ВИКОРИСТАННЯ ТЕХНОЛОГІЙ ШТУЧНОГО ІНТЕЛЕКТУ У ВЕБ-ДИЗАЙНІ. zenodo.org. https://doi.org/10.5281/zenodo.14505149

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