GPT-4.1
5 mentions across all digests
GPT-4.1 is an OpenAI model with a 1M token context window used for code summarization and QA in multi-model pipelines, noted as crossing a reliability threshold for AI coding quality around November 2025.
A Guide to Context Engineering for LLMs
2025 Chroma study shows LLMs degrade from 95% to 60% accuracy with larger inputs, proving that strategic context structuring beats maximizing context window size.
Highlights from my conversation about agentic engineering on Lenny's Podcast
Claude Opus 4.5 and GPT-4.1 crossed a November 2025 inflection point where code generation shifted from 'mostly works' to 'almost always works,' marking a critical capability threshold for agentic engineering and positioning software engineers as early indicators of broader information worker automation.
Shipping code faster with o3, o4-mini, and GPT-4.1
New tools and features in the Responses API
Introducing GPT-4.1 in the API