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GPT-4.5: OpenAI's Strongest Model for Chat

· 2 min read
Alexander Carrington
Alexander Carrington
COO of Neuronic AI
GPT-4.5

🧠 OpenAI Launches GPT-4.5​

OpenAI has released GPT-4.5, their largest and best model for chat. This breakthrough in scaling unsupervised learning delivers enhanced world knowledge, improved emotional intelligence, and significantly reduced hallucinations compared to GPT-4o.

🚀 Key Features of GPT-4.5

  • Scaling Unsupervised Learning
    → Advanced world model accuracy and intuition
    → Broader knowledge base through scaled pre-training
    → Enhanced pattern recognition and creative insights

  • Enhanced Emotional Intelligence
    → Greater "EQ" and natural conversation abilities
    → Better understanding of human intent and subtle cues
    → More empathetic and contextually appropriate responses

  • Significantly Reduced Hallucinations
    → 37.1% hallucination rate vs GPT-4o's 61.8%
    → 62.5% accuracy on SimpleQA vs GPT-4o's 38.2%
    → Improved factual accuracy across knowledge domains

  • Superior Creativity
    → Enhanced aesthetic intuition and creative problem-solving
    → Better understanding of design and visual appeal
    → Improved writing assistance and content creation

  • Complementary to Reasoning Models
    → Serves as stronger foundation for reasoning agents
    → Works alongside OpenAI o1/o3-mini reasoning models
    → Future models will combine both paradigms

📡 Performance & Capabilities

  • Academic Excellence
    → GPQA (Science): 71.4% vs GPT-4o's 53.6%
    → AIME '24 (Math): 36.7% vs GPT-4o's 9.3%
    → MMMLU (Multilingual): 85.1% vs GPT-4o's 81.5%
    → MMMU (Multimodal): 74.4% vs GPT-4o's 69.1%

  • Human Preference
    → 56.8-63.2% win rate vs GPT-4o across query types
    → Preferred for creative intelligence and professional queries
    → More natural and intuitive interactions

  • Advanced Capabilities
    → Superior help with writing and programming
    → Enhanced practical problem-solving abilities
    → Better aesthetic judgment for design work
    → Improved conversational warmth and empathy

  • Research Preview Status
    → More expensive than GPT-4o due to large scale
    → Long-term availability depends on community feedback
    → Currently lacks multimodal features (Voice Mode, video)

🛠️ Available now — plug in, route smart, and start building see it on our 👉 Dashboard

Learn more: OpenAI GPT-4.5 Introduction