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OpenAI Releases GPT-5.4 Thinking System Card
Key Takeaways
- GPT-5.4 Thinking is OpenAI's latest reasoning model with extended chain-of-thought capabilities
- System card places the model in Medium risk category after red-team safety evaluations
- Improved performance on MATH, coding, and scientific reasoning benchmarks over prior models
- Chain-of-thought transparency designed to make hidden deceptive reasoning structurally difficult
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DT Editorial Team··4 min read·via openai.com