Partially Verified65% confidenceFactTime unknown
O4 Mini is a reasoning-optimized model launched by OpenAI in 2025 and belongs to the O series.
3
Sources
65%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedOpenAI independently launched the "o-series" in 2024, specifically targeting scenarios that require multi-step reasoning such as math competitions and code debugging.76% similarVerifiedThe OpenAI o1 series models were released in September 2024, representing a paradigm shift in LLMs from fast, intuitive responses to deep reasoning.74% similar
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