OpenAI Introduces GPT-4.1 in Its API

OpenAI has officially launched GPT-4.1 in its API, positioning it as a lower-cost, lower-latency alternative to the GPT-4.5 Preview, which will be deprecated on July 14, 2025. GPT-4.1 matches or exceeds GPT-4.5’s performance on many key benchmarks, making it a compelling upgrade for developers. This iteration emphasizes cost efficiency—charging less per token—while retaining advanced reasoning, creative generation, and multimodal capabilities. OpenAI recommends that teams begin transitioning from GPT-4.5 to GPT-4.1 now to avoid service interruptions. The move reflects OpenAI’s strategy of refining mature models for commercial use while retiring experimental versions once feedback is incorporated openai.com.