OlympicCoder-7B is an open-source language model fine-tuned on the CodeForces-CoTs dataset, consisting of nearly 100,000 high-quality chain-of-thought examples from competitive programming contexts. Optimized specifically for olympiad-level coding problems, this model demonstrates strong chain-of-thought reasoning and competitive code generation capabilities, achieving performance competitive with frontier closed-source models on tasks from the IOI 2024 and similar coding contests.