John RizzoMember of Technical Staff · OpenAIEngineer↗
Researcher · Engineer
OpenAIMember of Technical Staff
Bavarian helped create GSM8K, a widely used benchmark for testing whether language models can solve multi-step math problems. He also developed methods that let models complete missing sections of text or code, drawing on a background in algorithms, computing systems, and theoretical computer science.
Reported GPT-4's capabilities, limitations and safety evaluations as a text-and-image input model.
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Reviewed August 7, 2026 · Checked for accuracy and new information.