OpenAI has begun to present the newest and largest artificial intelligence model GPT-4.5 to Chatgpt Plus subscribers. The company pointed out that the distribution would last for 1 to 3 days and the limits of use may change. However, the company announced that the distribution of Plus was completed in a much shorter time.

Plus subscribers can now use

Last week, the GPT-4.5 was first opened to users who subscribed to OpenAI’s $ 200 monthly chatgpt Pro plan. OpenAI, “We want to give a high usage limit to anyone with access to GPT-4.5, but we can change the limits as we understand the demand better,” he said.

According to OpenAI, the GPT-4.5 is the largest model ever developed by the company. Trained with more calculation power and data, this model offers a more advanced depth of information than OpenAI’s previous versions. However, this does not mean that it is the best model in every aspect. Various artificial intelligence tests, GPT-4.5 Deepseek, Anthropic and even OpenAI’s other “reasoning” models are said to be left behind in some areas.

The model is quite expensive

The company also acknowledges that it is highly costly to run the model. For this reason, the company, API GPT-4.5 in the long run in the long-term evaluation of whether to present. OpenAI to cover costs also keeps the model’s usage fee high: $ 75,000 per50 thousand inputs, $ 150 for the same amount of output. This pricing means OpenAI’s popular model 30 times more expensive than GPT-4O, 15 times more expensive output cost.

OpenAI claims that the model has a wider world knowledge and higher emotional intelligence. In addition, the hallucination rate of the GPT-4.5 is low and less likely to produce incorrect information is less. In addition, the model is also very strong in terms of its rhetoric skills. One of OpenAI’s internal comparisons found that the model was particularly good in convincing another artificial intelligence to give him cash money and to say a secret code word.