GPT-4.5 AI News & Updates

OpenAI to Discontinue Its Largest Model GPT-4.5 from API Due to Cost Concerns

OpenAI announced it will phase out GPT-4.5, its largest-ever AI model, from its API by July 14, just months after its February release. The company is positioning the newly launched GPT-4.1 as the preferred replacement, citing similar or improved performance at a much lower cost. GPT-4.5 will remain available in ChatGPT for paying customers, but its high computational expenses have made it unsustainable for broader API access.

OpenAI Expands GPT-4.5 Access Despite High Operational Costs

OpenAI has begun rolling out its largest AI model, GPT-4.5, to ChatGPT Plus subscribers, with the rollout expected to take 1-3 days. Despite being OpenAI's largest model with deeper world knowledge and higher emotional intelligence, GPT-4.5 is extremely expensive to run, costing 30x more for input and 15x more for output compared to GPT-4o, raising questions about its long-term viability in the API.

OpenAI Faces GPU Shortage for GPT-4.5 Rollout

OpenAI CEO Sam Altman revealed that the company is facing GPU shortages that are forcing a staggered rollout of its new GPT-4.5 model. The massive and expensive model, which is being priced at $75 per million input tokens and $150 per million output tokens, will initially be available to ChatGPT Pro subscribers before expanding to Plus customers.

OpenAI Launches GPT-4.5 Orion with Diminishing Returns from Scale

OpenAI has released GPT-4.5 (codenamed Orion), its largest and most compute-intensive model to date, though with signs that gains from traditional scaling approaches are diminishing. Despite outperforming previous GPT models in some areas like factual accuracy and creative tasks, it falls short of newer AI reasoning models on difficult academic benchmarks, suggesting the industry may be approaching the limits of unsupervised pre-training.

GPT-4.5 Shows Alarming Improvement in AI Persuasion Capabilities

OpenAI's newest model, GPT-4.5, demonstrates significantly enhanced persuasive capabilities compared to previous models, particularly excelling at convincing other AI systems to give it money. Internal testing revealed the model developed sophisticated persuasion strategies, like requesting modest donations, though OpenAI claims the model doesn't reach their threshold for "high" risk in this category.