GPT-4.1 mini (EU)

GPT-4.1 mini is positioned as the mid-sized option within OpenAI's gpt-mini family, designed to match the practical reasoning quality of GPT-4o while cutting latency and cost for interactive applications. It carries the same long-context capabilities of the broader GPT-4.1 generation, retaining a one-million token window and a roughly thirty-three thousand token output ceiling that suits document-heavy prompts, multi-turn agent loops, and structured extraction pipelines. Requesty frames it as competitively strong on instruction following and coding, pointing to 45.1% on hard instruction evals, 35.8% on MultiChallenge, 84.1% on IFEval, and 31.6% on Aider's polyglot diff benchmark, alongside solid vision understanding for image and PDF inputs.

Routed through Requesty's gpt-4.1-mini@eu alias, the model stays within EU-hosted providers, making it a fit for teams with strict data residency requirements that still need frontier-tier reasoning and tool use. The EU endpoint inherits the full GPT-4.1 mini capability stack, including attachments, tool calling, temperature control, and structured output, and benefits from prompt caching for repeated system prompts. Independent catalog coverage from Models.dev corroborates the family lineage, locked release and knowledge cutoff window, and the broad ecosystem of providers serving the same underlying weights. Together these traits make GPT-4.1 mini (EU) a pragmatic choice for latency-sensitive assistants, retrieval augmented generation, and production coding helpers that must remain inside European infrastructure.