GPT-4.5 vs o3-mini
Performance Comparison
Factual Accuracy (SimpleQA)
GPT-4.5
62.5%
o3-mini
15%
Hallucination Rate (Lower is better)
GPT-4.5
37.1%
o3-mini
80.3%
Science Reasoning (GPQA)
GPT-4.5
71.4%
o3-mini
79.7%
Math Problem Solving (AIME)
GPT-4.5
36.7%
o3-mini
87.3%
GPT-4.5 vs o3-mini
Key Differences
Coding Performance (SWE-Lancer)
GPT-4.5
32.6%
o3-mini
10.8%
Multilingual (MMMLU)
GPT-4.5
85.1%
o3-mini
~60%
Best For:
GPT-4.5
General knowledge, factual accuracy, conversation
o3-mini
Complex reasoning, math, science problems
Training Focus:
GPT-4.5
SFT, RLHF, Scalable Alignment
o3-mini
Chain-of-thought (CoT) reasoning
VS