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All glossary terms

Solo builder glossary

Custom GPT

A custom GPT is a configured version of ChatGPT tailored with instructions, knowledge files, and enabled capabilities for a particular task. Its behavior depends on the configured materials and platform features.

Join Rudra · Definition and worked example

Formula or example

Context budget example: usable input = model context limit − instructions − conversation − output reserve. Keep a reserve for the response rather than filling the entire context.

Apply it

Use the Prompt context budget calculator to work through your assumptions. See also the related guide.

Related statistic

Organizational AI adoption reached 88% in the 2026 AI Index. Check its source population and definitions before applying it to your business.

Related terms

Sources

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