OpenAI has launched GPT-4.5, which is up to date it’s most advanced AI language model , an successor of GPT-4.
- GPT-4.5 is here! : OpenAI’s newest AI model is launching today.
- Who gets it first? : ChatGPT Pro users will get early access as a research preview.
- Better, but not the best: OpenAI says GPT-4.5 is their most knowledgeable model, but not their most powerful. It may not perform as well as o1 or o3-mini in some areas.
What has Improved in GPT-4.5 ?
CEO of OpenAI Sam Altman has said that “GPT-4.5 is ready !”, while sharing his experience of using the GPT-4.5
- Better writing, more knowledge, and a refined personality.
- Feels more natural when talking, understands patterns better, and makes stronger connections between ideas.
- Great for writing, coding, and problem-solving.
Not a Major Breakthrough .
- Biggest AI model yet, but not a revolutionary upgrade.
- 10x more efficient than GPT-4 but doesn’t add major new abilities.
- Performs worse than o1, o3-mini, and deep research in some tests.
- OpenAI removed some details about its limitations from a leaked document.
How it is trained ?
- Early reports said OpenAI used the o1 reasoning model (“Strawberry”) and AI-generated data to train GPT-4.5.
- OpenAI says they used new training methods along with supervised fine-tuning (SFT) and reinforcement learning from human feedback (RLHF)—just like GPT-4o.
Performance and Availability.
- Fewer mistakes than GPT-4o, slightly fewer than o1.
- Feels warmer, more natural, and emotionally aware in conversations.
- Testers rated GPT-4.5 better than GPT-4o in most categories.
- Sam Altman says it’s a large, expensive model but won’t break records.
- Rolling out soon :
- Now: ChatGPT Pro users
- Next week: Plus & Team users
- Later: Enterprise & Edu users
- Also available on Microsoft Azure AI Foundry with other AI models.
What is next ? GPT-5 Coming Soon
- OpenAI plans to launch GPT-5 as early as May.
- GPT-5 will combine multiple OpenAI technologies for a more advanced AI system
- Includes o3 reasoning model, first mentioned in December.
- o3-mini was released last month, but full o3 will be in GPT-5.
- OpenAI aims to merge AI models to create a more advanced system, possibly leading to Artificial General Intelligence (AGI) in the future.