Overview

• GPT-5 is now available in multiple variants, including gpt-5-mini and gpt-5-nano, with free accounts subject to usage caps and automatic switching to smaller models once limits are reached.
• The multimodal model delivers faster responses and improved performance in writing, coding—a live demo generated a 250-line web app in under a minute—and health-related queries.
• OpenAI says it has implemented targeted safety mitigations to reduce hallucinations and enable the model to refuse risky or unanswerable requests to enhance reliability.
• Sam Altman declared the binary AGI benchmark obsolete and called for evaluating AI by incremental capability gains rather than a single intelligence threshold.
• The GPT-5 launch underpins OpenAI’s fundraising push, building on its $300 billion valuation with an ambition to reach $500 billion through a secondary share sale.