I’m running my experiments locally and send cost data to LangSmith along with my experiment results, without having it compute cost for me. I see that my cost breakdown is present in the run’s metadata when I open it in the LangSmith UI. I also added a time_to_first_token field: { "inputs": { // omitted }, "outputs": { // omitted }, "error": null, "time_to_first_token_seconds": 30.64030529104639, "metadata": { "LANGSMITH_ENDPOINT": "https://eu.api.smith.langchain.com", ...