In 2026, LangSmith, Langfuse, Opik and Braintrust all added a gateway in front of the model providers. The main reason is control: a tracing tool can only record a model call, while a gateway can stop one. Two Tools That Did Separate Jobs For the past two years, many teams ran large language model (LLM) applications with two separate tools. A gateway sat between the application and the model providers. It held the provider API keys, translated between provider APIs and retried failed calls…
This article has been indexed from Unite.AI
Read the original article: