ChatGPT 2
ChatGPT prompts with real output.
- "maximum context length" error but tiktoken says it fits
tiktoken counts 73,878 tokens but the API says 249,114. Estimate the full request offline: system, tools, schema, history and reserved output.
Ubuntu 24.04 · Python 3.12 · tiktoken 0.14.0 · OpenAI docs as of 2026-10 (no API calls) - Split ChatGPT custom instructions, memory and projects
Compare the scope of ChatGPT custom instructions, memory and projects in one table, then see what to put in each, with example text and how to delete memory.
ChatGPT · per OpenAI Help Center · 2026-10