ChatGPT just got another brain boost with GPT-5.4 Thinking — and it’s built for bigger, more complex tasks GPT-5.4 Thinking adds deeper reasoning and workflow abilities to ChatGPT while GPT-5.3 Instant remains the fast default for everyday use. #Instant_remains #Thinking_adds #complex_tasks #brain_boost #adds_deeper #deeper_reasoning #workflow_abilities
