102,881 conversations · 1.27 GiB · $164 API generation cost+ $80 (codex) is a high-quality conversational training dataset focused on reasoning, mathematics, STEM, Python programming, software security, and tool use. It was independently generated by the dataset creator through API-based generation at a total cost of $164. Every example follows the Hugging Face conversational messages format and includes a short topicsummary for filtering, analysis, and curriculum construction. The data includes detailed solutions, multi-turn dialogue, system prompts, tool calls, tool responses, and structured tool definitions. The dataset is designed as quality-first training data with complete answers…