[{"data":1,"prerenderedAt":27},["ShallowReactive",2],{"nr-en-openai-custom-instructions-5000-characters":3},{"slug":4,"title":5,"dek":6,"date":7,"time":8,"publishedAt":9,"updated":10,"updatedAt":10,"dateFmt":11,"updatedFmt":10,"kind":12,"tier":13,"author":14,"authorName":15,"topics":16,"tracker":10,"trackerLabel":10,"headlineStat":21,"image":22,"ogImage":23,"imageAlt":5,"csv":10,"minutes":24,"words":25,"html":26},"openai-custom-instructions-5000-characters","OpenAI Increases Custom Instructions to 5,000 Characters","OpenAI has significantly increased the character limit for Custom Instructions. Users can now create much more detailed instructions for ChatGPT.","2026-07-18","06:57","2026-07-18T06:57:00+02:00","","July 18, 2026","news","standard","ideal-syka","Ideal Syka",[17,18,19,20],"OpenAI","ChatGPT","Product Update","AI Tools","1,500 → 5,000 characters","\u002Fnewsroom\u002Fimg\u002Fopenai-custom-instructions-5000-characters.webp","\u002Fog-nr\u002Fopenai-custom-instructions-5000-characters.en.png",1,141,"\u003Cp>OpenAI has raised the maximum length of Custom Instructions from \u003Cstrong>1,500 to 5,000 characters\u003C\u002Fstrong>, as announced via OpenAI on Bluesky. The feature allows users to configure ChatGPT with persistent instructions—such as preferred writing style, output format, or subject matter expertise.\u003C\u002Fp>\n\u003Ch2>At a glance\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>Custom Instructions: \u003Cstrong>1,500 → 5,000 characters\u003C\u002Fstrong>\u003C\u002Fli>\n\u003Cli>Source: \u003Cstrong>OpenAI\u003C\u002Fstrong> (Bluesky)\u003C\u002Fli>\n\u003Cli>Users can now set "hauntingly specific" instructions\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>What it means\u003C\u002Fh2>\n\u003Cp>The increased space allows for more precise context and requirement definitions—useful for agencies using ChatGPT in client workflows or enterprises calibrating the model to internal standards. Users who previously had to compress their instructions now have significantly more room. This is a straightforward feature update with no breaking changes—existing Custom Instructions remain valid.\u003C\u002Fp>\n\u003Ch2>Sources\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fbsky.app\u002Fprofile\u002Fopenaibot.bsky.social\u002Fpost\u002F3mqtt4c5kjw26\">OpenAI {bot}\u003C\u002Fa>\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>\u003Cem>Editorially owned by \u003Ca href=\"\u002Fen\u002Fautor\u002Fideal-syka\">Ideal Syka\u003C\u002Fa>. Sources and method: \u003Ca href=\"\u002Fen\u002Fredaktion\">Newsroom & method\u003C\u002Fa>. Tips and corrections: \u003Ca href=\"mailto:ai@i6eal.de\">ai@i6eal.de\u003C\u002Fa>.\u003C\u002Fem>\u003C\u002Fp>\n",1784356128915]