16x Prompt

16x Prompt is a desktop application built for developers who want to get dramatically better results from ChatGPT and other large language models when working on code. The quality of an LLM's output is only as good as the context you give it — and 16x Prompt makes it effortless to add source code, relevant files, and formatting instructions to your prompts in a structured way. Managing code context, customizing prompt templates, and switching between different LLM providers has never been smoother. It supports API integrations with all the major providers including OpenAI, Anthropic Claude, Google Gemini, DeepSeek, OpenRouter, Ollama, and Azure OpenAI — giving you the flexibility to use the best model for each task and ship features faster than ever.