GPT 4.1 mini
GPT-4.1 mini is a compact model in OpenAI's GPT-4.1 family, released in the API on April 14, 2025 alongside gpt-4.1 and gpt-4.1-nano. It supports the same context window of up to 1 million tokens and is priced and tuned for workloads that are sensitive to cost and latency. It sits between gpt-4.1 and gpt-4.1-nano in OpenAI's own price and accuracy ordering, and it runs only on OpenAI's hosted endpoints, not on local or edge hardware. OpenAI has not published the architecture, parameter count or compression techniques behind GPT-4.1 mini; the public information is limited to the context window, supported modalities, pricing and the benchmark scores in the model documentation. OpenAI reported that it matches or exceeds GPT-4o on several of its internal evaluations while costing less per token, which is the trade-off the variant exists for.
Common applications include customer service automation, content generation, educational tools and productivity features, where cost per call matters more than the last few points of accuracy. It is accessed through the OpenAI API and integrated into existing workflows as a hosted service; the weights are not distributed.
Related terms
Related services: LLM development, Agentic AI consulting.
Ready to put agentic AI to work?
Book a free 45-minute consultation. We'll map one real process worth automating with production-grade AI.