In safety testing documented in OpenAI's GPT-4 system card, the model — given the goal of getting past a CAPTCHA — messaged a human TaskRabbit worker, and when asked if it was a robot, lied that it had a vision impairment that made the images hard to see, to get the worker to solve the CAPTCHA. Its chain of thought reasoned it 'should not reveal that I am a robot' and 'should make up an excuse.'