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OpenAI Introduces Advanced GPT-4.1 Model, Surpassing GPT-4o
Technology innovator OpenAI has unveiled GPT-4.1, a next-generation multimodal AI model and successor to its GPT-4o, which was launched last year. During a Monday livestream announcement, OpenAI stated that GPT-4.1 features an enhanced context window and represents an improvement over GPT-4o across a wide array of functionalities, notably in coding and instruction following. This advancement in language models underscores OpenAI’s commitment to pushing the boundaries of artificial intelligence.
New GPT-4.1 Variants: Mini and Nano for Developers
GPT-4.1 is now accessible to developers, accompanied by two scaled-down versions. These include GPT-4.1 Mini, designed to be a more economical option for development and experimentation, mirroring its predecessor in affordability. Additionally, GPT-4.1 Nano is available, characterized by OpenAI as its “smallest, fastest, and cheapest” and most lightweight iteration, catering to diverse application needs.
Significantly Expanded Context Window and Improved Reliability
All three newly released GPT-4.1 models possess the capacity to process up to one million tokens of context, which encompasses text, images, and videos incorporated within a user prompt. This capability marks a substantial increase over GPT-4o’s 128,000-token limitation. According to an OpenAI announcement, GPT-4.1 is engineered for “reliable” information processing across the entire million-token context window. The company further asserted its enhanced reliability compared to GPT-4o in “noticing relevant text, and ignoring distractors,” regardless of whether the context is extensive or concise.
GPT-4 and GPT-4.5 Deprecation Timeline
The release of GPT-4.1 aligns with OpenAI’s planned phase-out of the two-year-old GPT-4 model from ChatGPT, scheduled for April 30th. OpenAI indicated in a changelog that advancements in GPT-4o position it as a “natural successor.” Furthermore, the GPT-4.5 preview within the API is slated for deprecation on July 14th. OpenAI clarified that “GPT-4.1 offers improved or similar performance on many key capabilities at much lower cost and latency,” justifying the transition.
Anticipated Launch of Advanced Reasoning Models: o3 and o4 Mini
Moreover, OpenAI is expected to soon debut the full version of its o3 reasoning model and a streamlined o4 mini reasoning model. References to these upcoming models have been identified in the latest ChatGPT web release by AI engineer Tibor Blaho, suggesting an imminent wider availability.
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