OpenAI has temporarily halted new sign-ups for ChatGPT Plus due to a surge in usage exceeding capacity. This follows the company's first developer conference where it announced a range of updates and new products based on its GPT model.
OpenAI, a leading AI startup, has seen significant growth thanks to the popularity of ChatGPT and its paid tiers. The company is reportedly nearing $1 billion in annual revenue and may be valued at up to $90 billion.