GPT-5 Unleashed: OpenAI’s Revolutionary AI Model Transforms ChatGPT

Key Points

1. GPT-5 is OpenAI's first 'unified' AI model, transforming ChatGPT into a proactive assistant capable of executing complex tasks.

2. OpenAI CEO Sam Altman describes GPT-5 as a significant step toward AGI, with improved accuracy and reduced hallucination rates (4.8% compared to previous models).

3. GPT-5 outperforms competitors like Claude Opus 4.1 and Grok 4 Heavy in benchmarks, achieving 89.4% on PhD-level science questions (GPQA Diamond).

4. The model is now available to free users by default, with tiered access for Plus subscribers ($20/month) and organizations (Team, Edu, Enterprise plans).

5. Developers can access GPT-5 via API in three sizes, with pricing set at $1.25 per million input tokens and $10 per million output tokens.