https://knowledgebuilderpro.com/blog Practical guides on chunking documents for ChatGPT custom GPTs, optimizing files for RAG pipelines, and building AI knowledge bases. en-us Tue, 14 Apr 2026 09:13:29 GMT https://knowledgebuilderpro.com/blog/chatgpt-custom-gpt-file-size-token-limits A complete reference on ChatGPT custom GPT file size limits, token caps, and strategies for working within them. Updated for 2026. Mon, 13 Apr 2026 00:00:00 GMT reference https://knowledgebuilderpro.com/blog/chatgpt-custom-gpt-file-size-token-limits https://knowledgebuilderpro.com/blog/clean-pdf-formatting-for-rag Raw PDFs break RAG pipelines and custom GPTs. Learn how to clean PDF formatting issues like broken tables, headers, and multi-column layouts before ingestion. Mon, 13 Apr 2026 00:00:00 GMT guides https://knowledgebuilderpro.com/blog/clean-pdf-formatting-for-rag https://knowledgebuilderpro.com/blog/how-to-chunk-pdf-for-chatgpt Learn how to split and chunk PDFs for ChatGPT custom GPTs so your knowledge base actually retrieves the right answers. Strategies, code examples, and tools. Mon, 13 Apr 2026 00:00:00 GMT guides https://knowledgebuilderpro.com/blog/how-to-chunk-pdf-for-chatgpt