OpenAI launched GPT-4.5, its most advanced model at the time, improving coherence, reasoning, and reduced hallucinations. The model performs more naturally in conversations and enhances productivity in writing, programming, and structured tasks.
GPT-4.5 is available to ChatGPT Pro users as part of a phased release before expanding to other tiers like Plus, Teams, and Enterprise. The release reflects OpenAI’s focus on better alignment, model controllability, and usefulness.
GPT-4.5 also supports advanced tool use, integrates tightly with ChatGPT’s system message configuration, and marks a critical step toward GPT-5. Developers anticipate further performance enhancements in creative and logic-intensive applications.
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