- OpenAI called Elon Musk's lawsuit "incoherent" in a recent legal filing.
- Musk's suit alleged the company breached its "founding agreement." OpenAI said that doesn't exist.
- The company accused Musk of using the lawsuit to "advance his own commercial interests."
OpenAI mocked Elon Musk's lawsuit as "incoherent" and "contradictory" in a recent legal filing that was made public on Monday.