The launch of GPT-OSS has marked an exciting development for the open-source AI community, offering new opportunities for developers and researchers. Fireworks.ai has been instrumental in enhancing the model's implementation, focusing on reliability and performance to make it truly production-ready. A key improvement was made in the tool-calling functionality, which initially exhibited bugs causing unreliable behavior. After addressing these issues, Fireworks.ai's implementation was recognized for its quality, particularly in tool calling, by OpenRouter. Furthermore, the company identified and corrected a critical bug in the model's tokenizer logic, sharing the fix with the community to promote open-source collaboration. The enhancements led to a reevaluation of benchmarks, revealing that OpenAI's initial reports underestimated the model's capabilities by 5-10%. Fireworks.ai's improvements have resulted in a more reliable and efficient version of GPT-OSS, offering developers a solid foundation for building AI applications.