EdgeRunner 20B is a fine-tuned version of gpt-oss-20b built specifically for military use, trained on 1.6M curated military records. It delivers GPT-5–level performance across new military test sets—including combat arms, combat medic, cyber operations, and general military knowledge—while maintaining strong results on standard benchmarks. The model’s efficiency and ability to run on secure, air-gapped edge environments make it well-suited for sensitive defense operations.