GPT-4.1

GPT-4.1 is OpenAI's flagship model in the GPT family, representing the current top tier of OpenAI's language model capabilities. As a multimodal model, it processes both text and image inputs while maintaining the conversational and reasoning abilities that define the GPT lineage. The model features a 1 million token context window, enabling it to process and maintain coherence across extremely long documents and conversations. It supports tool calling for integration with external systems and APIs, and handles both chat completion and code generation tasks. With a knowledge cutoff of June 2024, it incorporates more recent information than earlier GPT models. Performance benchmarks show an output speed of 88.34 tokens per second with a time to first token of 599 milliseconds. GPT-4.1 is designed for complex reasoning tasks, advanced coding projects, and multimodal workflows that require processing both textual and visual information. Within the broader landscape of flagship models, it competes alongside other top-tier systems while offering OpenAI's particular approach to language understanding and generation.