Teammately is the autonomous AI agent that self-iterates AI products, models and agents towards your objectives in a level that human-alone could not achieve. The tool intends to provide assistance throughout various stages of the AI development process as your 'teammate'. This includes prompt and RAG engineering, model selection and tuning, test case preparation, quality evaluation, and post-production monitoring. The tool begins a project by taking your initial objective, from which point it then drafts the initial prompt text and the architecture of the LLM. It can generate test cases necessary for consistent evaluation against multiple dev options in the LLM architecture. Teammately's AI can also create input text dataset based on your prompt and generation logic. A unique feature of the tool is its capacity to create custom metrics tailored for each case, enabling better evaluations of quality. The tool is designed to simulate generation outcomes from the input test cases, evaluate these according to the generated metric instructions and analyze and visualize the result for human review. The tool also provides LLM architecture suggestions and identifies missing knowledge, assists in reviewing alternative plans, evaluates these, and offers a final rankings based on the overall data and narrative reports.