diff --git a/docusaurus.config.js b/docusaurus.config.js
index 5b394fd7..b63fbfbb 100644
--- a/docusaurus.config.js
+++ b/docusaurus.config.js
@@ -110,7 +110,7 @@ const config = {
       },
       announcementBar: {
         content:
-          'Our new LangChain Academy Course Deep Research with LangGraph is now live! <a href="https://academy.langchain.com/courses/deep-research-with-langgraph/?utm_medium=internal&utm_source=docs&utm_campaign=q3-2025_deep-research-course_co" target="_blank">Enroll for free</a>.',
+          '<strong>LangSmith docs have moved!</strong> Find the LangSmith docs at the new <a href="https://docs.langchain.com/langsmith" target="_blank">LangChain Docs</a> site.',
       },
       prism: {
         theme: {
diff --git a/vercel.json b/vercel.json
index 3cb9709f..0c53a162 100644
--- a/vercel.json
+++ b/vercel.json
@@ -262,6 +262,902 @@
     {
       "source": "/how_to_guides/evaluation/evaluate_pairwise",
       "destination": "/evaluation/how_to_guides/evaluate_pairwise"
+    },
+    {
+      "source": "/",
+      "destination": "https://www.docs.langchain.com/langsmith"
+    },
+    {
+      "source": "/index",
+      "destination": "https://www.docs.langchain.com/langsmith"
+    },
+    {
+      "source": "/langgraph_cloud",
+      "destination": "https://www.docs.langchain.com/langsmith"
+    },
+    {
+      "source": "/observability",
+      "destination": "https://www.docs.langchain.com/langsmith/observability-stack"
+    },
+    {
+      "source": "/observability/index",
+      "destination": "https://www.docs.langchain.com/langsmith/observability-stack"
+    },
+    {
+      "source": "/evaluation",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluation-concepts"
+    },
+    {
+      "source": "/evaluation/index",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluation-concepts"
+    },
+    {
+      "source": "/evaluation/concepts#application-specific-techniques",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluation-approaches"
+    },
+    {
+      "source": "/administration",
+      "destination": "https://www.docs.langchain.com/langsmith/administration-overview"
+    },
+    {
+      "source": "/administration/index",
+      "destination": "https://www.docs.langchain.com/langsmith/administration-overview"
+    },
+    {
+      "source": "/prompt_engineering",
+      "destination": "https://www.docs.langchain.com/langsmith/prompt-engineering-concepts"
+    },
+    {
+      "source": "/prompt_engineering/index",
+      "destination": "https://www.docs.langchain.com/langsmith/prompt-engineering-concepts"
+    },
+    {
+      "source": "/self_hosting",
+      "destination": "https://www.docs.langchain.com/langsmith/architectural-overview"
+    },
+    {
+      "source": "/self_hosting/index",
+      "destination": "https://www.docs.langchain.com/langsmith/architectural-overview"
+    },
+    {
+      "source": "/reference",
+      "destination": "https://www.docs.langchain.com/langsmith"
+    },
+    {
+      "source": "/reference/index",
+      "destination": "https://www.docs.langchain.com/langsmith"
+    },
+    {
+      "source": "/pricing",
+      "destination": "https://www.docs.langchain.com/langsmith"
+    },
+    {
+      "source": "/pricing/index",
+      "destination": "https://www.docs.langchain.com/langsmith"
+    },
+    {
+      "source": "/observability/concepts",
+      "destination": "https://www.docs.langchain.com/langsmith/observability-stack"
+    },
+    {
+      "source": "/observability/concepts/index",
+      "destination": "https://www.docs.langchain.com/langsmith/observability-stack"
+    },
+    {
+      "source": "/observability/how_to_guides",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-with-langchain"
+    },
+    {
+      "source": "/observability/how_to_guides/index",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-with-langchain"
+    },
+    {
+      "source": "/observability/how_to_guides/access_current_span",
+      "destination": "https://www.docs.langchain.com/langsmith/access-current-span"
+    },
+    {
+      "source": "/observability/how_to_guides/add_metadata_tags",
+      "destination": "https://www.docs.langchain.com/langsmith/add-metadata-tags"
+    },
+    {
+      "source": "/observability/how_to_guides/alerts",
+      "destination": "https://www.docs.langchain.com/langsmith/alerts-webhook"
+    },
+    {
+      "source": "/observability/how_to_guides/alerts_pagerduty",
+      "destination": "https://www.docs.langchain.com/langsmith/alerts-pagerduty"
+    },
+    {
+      "source": "/observability/how_to_guides/alerts_webhook",
+      "destination": "https://www.docs.langchain.com/langsmith/alerts-webhook"
+    },
+    {
+      "source": "/observability/how_to_guides/annotate_code",
+      "destination": "https://www.docs.langchain.com/langsmith/annotate-code"
+    },
+    {
+      "source": "/observability/how_to_guides/calculate_token_based_costs",
+      "destination": "https://www.docs.langchain.com/langsmith/calculate-token-based-costs"
+    },
+    {
+      "source": "/observability/how_to_guides/claude_code",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-claude-code"
+    },
+    {
+      "source": "/observability/how_to_guides/collector_proxy",
+      "destination": "https://www.docs.langchain.com/langsmith/collector-proxy"
+    },
+    {
+      "source": "/observability/how_to_guides/compare_traces",
+      "destination": "https://www.docs.langchain.com/langsmith/compare-traces"
+    },
+    {
+      "source": "/observability/how_to_guides/dashboards",
+      "destination": "https://www.docs.langchain.com/langsmith/dashboards"
+    },
+    {
+      "source": "/observability/how_to_guides/data_export",
+      "destination": "https://www.docs.langchain.com/langsmith/data-export"
+    },
+    {
+      "source": "/observability/how_to_guides/distributed_tracing",
+      "destination": "https://www.docs.langchain.com/langsmith/distributed-tracing"
+    },
+    {
+      "source": "/observability/how_to_guides/export_traces",
+      "destination": "https://www.docs.langchain.com/langsmith/export-traces"
+    },
+    {
+      "source": "/observability/how_to_guides/filter_traces_in_application",
+      "destination": "https://www.docs.langchain.com/langsmith/filter-traces-in-application"
+    },
+    {
+      "source": "/observability/how_to_guides/langgraph_platform_logs",
+      "destination": "https://www.docs.langchain.com/langsmith/langgraph-platform-logs"
+    },
+    {
+      "source": "/observability/how_to_guides/log_llm_trace",
+      "destination": "https://www.docs.langchain.com/langsmith/log-llm-trace"
+    },
+    {
+      "source": "/observability/how_to_guides/log_multimodal_traces",
+      "destination": "https://www.docs.langchain.com/langsmith/multimodal-content"
+    },
+    {
+      "source": "/observability/how_to_guides/log_retriever_trace",
+      "destination": "https://www.docs.langchain.com/langsmith/log-retriever-trace"
+    },
+    {
+      "source": "/observability/how_to_guides/log_traces_to_project",
+      "destination": "https://www.docs.langchain.com/langsmith/log-traces-to-project"
+    },
+    {
+      "source": "/observability/how_to_guides/mask_inputs_outputs",
+      "destination": "https://www.docs.langchain.com/langsmith/mask-inputs-outputs"
+    },
+    {
+      "source": "/observability/how_to_guides/nest_traces",
+      "destination": "https://www.docs.langchain.com/langsmith/nest-traces"
+    },
+    {
+      "source": "/observability/how_to_guides/online_evaluations",
+      "destination": "https://www.docs.langchain.com/langsmith/online-evaluations"
+    },
+    {
+      "source": "/observability/how_to_guides/output_detailed_logs",
+      "destination": "https://www.docs.langchain.com/langsmith/output-detailed-logs"
+    },
+    {
+      "source": "/observability/how_to_guides/rules",
+      "destination": "https://www.docs.langchain.com/langsmith/rules"
+    },
+    {
+      "source": "/observability/how_to_guides/sample_traces",
+      "destination": "https://www.docs.langchain.com/langsmith/sample-traces"
+    },
+    {
+      "source": "/observability/how_to_guides/serverless_environments",
+      "destination": "https://www.docs.langchain.com/langsmith/serverless-environments"
+    },
+    {
+      "source": "/observability/how_to_guides/share_trace",
+      "destination": "https://www.docs.langchain.com/langsmith/share-trace"
+    },
+    {
+      "source": "/observability/how_to_guides/threads",
+      "destination": "https://www.docs.langchain.com/langsmith/threads"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_generator_functions",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-generator-functions"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_with_api",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-with-api"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_with_instructor",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-with-instructor"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_with_langchain",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-with-langchain"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_with_langgraph",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-with-langgraph"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_with_openai_agents_sdk",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-openai"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_with_opentelemetry",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-with-opentelemetry"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_with_vercel_ai_sdk",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-with-vercel-ai-sdk"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_with_vercel_ai_sdk_legacy",
+      "destination": "https://www.docs.langchain.com/langsmith/legacy-trace-with-vercel-ai-sdk"
+    },
+    {
+      "source": "/observability/how_to_guides/trace_without_env_vars",
+      "destination": "https://www.docs.langchain.com/langsmith/trace-without-env-vars"
+    },
+    {
+      "source": "/observability/how_to_guides/toubleshooting_variable_caching",
+      "destination": "https://www.docs.langchain.com/langsmith/troubleshooting-variable-caching"
+    },
+    {
+      "source": "/observability/how_to_guides/upload_files_with_traces",
+      "destination": "https://www.docs.langchain.com/langsmith/upload-files-with-traces"
+    },
+    {
+      "source": "/observability/how_to_guides/webhooks",
+      "destination": "https://www.docs.langchain.com/langsmith/webhooks"
+    },
+    {
+      "source": "/observability/tutorials",
+      "destination": "https://www.docs.langchain.com/langsmith/observability-tutorial"
+    },
+    {
+      "source": "/observability/tutorials/index",
+      "destination": "https://www.docs.langchain.com/langsmith/observability-tutorial"
+    },
+    {
+      "source": "/observability/tutorials/observability",
+      "destination": "https://www.docs.langchain.com/langsmith/observability-tutorial"
+    },
+    {
+      "source": "/evaluation/concepts",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluation-overview"
+    },
+    {
+      "source": "/evaluation/concepts/index",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluation-overview"
+    },
+    {
+      "source": "/evaluation/how_to_guides",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-llm-application"
+    },
+    {
+      "source": "/evaluation/how_to_guides/index",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-llm-application"
+    },
+    {
+      "source": "/evaluation/how_to_guides/analyze_single_experiment",
+      "destination": "https://www.docs.langchain.com/langsmith/analyze-an-experiment"
+    },
+    {
+      "source": "/evaluation/how_to_guides/annotate_traces_inline",
+      "destination": "https://www.docs.langchain.com/langsmith/annotate-traces-inline"
+    },
+    {
+      "source": "/evaluation/how_to_guides/annotation_queues",
+      "destination": "https://www.docs.langchain.com/langsmith/annotation-queues"
+    },
+    {
+      "source": "/evaluation/how_to_guides/async",
+      "destination": "https://www.docs.langchain.com/langsmith/async"
+    },
+    {
+      "source": "/evaluation/how_to_guides/attach_user_feedback",
+      "destination": "https://www.docs.langchain.com/langsmith/attach-user-feedback"
+    },
+    {
+      "source": "/evaluation/how_to_guides/audit_evaluator_scores",
+      "destination": "https://www.docs.langchain.com/langsmith/audit-evaluator-scores"
+    },
+    {
+      "source": "/evaluation/how_to_guides/bind_evaluator_to_dataset",
+      "destination": "https://www.docs.langchain.com/langsmith/bind-evaluator-to-dataset"
+    },
+    {
+      "source": "/evaluation/how_to_guides/compare_experiment_results",
+      "destination": "https://www.docs.langchain.com/langsmith/compare-experiment-results"
+    },
+    {
+      "source": "/evaluation/how_to_guides/create_few_shot_evaluators",
+      "destination": "https://www.docs.langchain.com/langsmith/create-few-shot-evaluators"
+    },
+    {
+      "source": "/evaluation/how_to_guides/custom_evaluator",
+      "destination": "https://www.docs.langchain.com/langsmith/code-evaluator"
+    },
+    {
+      "source": "/evaluation/how_to_guides/dataset_subset",
+      "destination": "https://www.docs.langchain.com/langsmith/manage-datasets"
+    },
+    {
+      "source": "/evaluation/how_to_guides/dataset_version",
+      "destination": "https://www.docs.langchain.com/langsmith/manage-datasets#evaluate-on-a-specific-dataset-version"
+    },
+    {
+      "source": "/evaluation/how_to_guides/define_target",
+      "destination": "https://www.docs.langchain.com/langsmith/define-target-function"
+    },
+    {
+      "source": "/evaluation/how_to_guides/download_experiment_results_as_csv",
+      "destination": "https://www.docs.langchain.com/langsmith/work-with-experiments"
+    },
+    {
+      "source": "/evaluation/how_to_guides/evaluate_existing_experiment",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-existing-experiment"
+    },
+    {
+      "source": "/evaluation/how_to_guides/evaluate_llm_application",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-llm-application"
+    },
+    {
+      "source": "/evaluation/how_to_guides/evaluate_on_intermediate_steps",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-on-intermediate-steps"
+    },
+    {
+      "source": "/evaluation/how_to_guides/evaluate_pairwise",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-pairwise"
+    },
+    {
+      "source": "/evaluation/how_to_guides/evaluate_with_attachments",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-with-attachments"
+    },
+    {
+      "source": "/evaluation/how_to_guides/export_filtered_traces_to_dataset",
+      "destination": "https://www.docs.langchain.com/langsmith/manage-datasets#export-filtered-traces-from-experiment-to-dataset"
+    },
+    {
+      "source": "/evaluation/how_to_guides/fetch_perf_metrics_experiment",
+      "destination": "https://www.docs.langchain.com/langsmith/fetch-perf-metrics-experiment"
+    },
+    {
+      "source": "/evaluation/how_to_guides/filter_experiments_ui",
+      "destination": "https://www.docs.langchain.com/langsmith/filter-experiments-ui"
+    },
+    {
+      "source": "/evaluation/how_to_guides/index_datasets_for_dynamic_few_shot_example_selection",
+      "destination": "https://www.docs.langchain.com/langsmith/index-datasets-for-dynamic-few-shot-example-selection"
+    },
+    {
+      "source": "/evaluation/how_to_guides/langchain_runnable",
+      "destination": "https://www.docs.langchain.com/langsmith/langchain-runnable"
+    },
+    {
+      "source": "/evaluation/how_to_guides/langgraph",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-graph"
+    },
+    {
+      "source": "/evaluation/how_to_guides/llm_as_judge",
+      "destination": "https://www.docs.langchain.com/langsmith/llm-as-judge"
+    },
+    {
+      "source": "/evaluation/how_to_guides/local",
+      "destination": "https://www.docs.langchain.com/langsmith/local"
+    },
+    {
+      "source": "/evaluation/how_to_guides/manage_datasets_in_application",
+      "destination": "https://www.docs.langchain.com/langsmith/manage-datasets-in-application"
+    },
+    {
+      "source": "/evaluation/how_to_guides/manage_datasets_programmatically",
+      "destination": "https://www.docs.langchain.com/langsmith/manage-datasets-programmatically"
+    },
+    {
+      "source": "/evaluation/how_to_guides/metric_type",
+      "destination": "https://www.docs.langchain.com/langsmith/metric-type"
+    },
+    {
+      "source": "/evaluation/how_to_guides/multi_turn_simulation",
+      "destination": "https://www.docs.langchain.com/langsmith/multi-turn-simulation"
+    },
+    {
+      "source": "/evaluation/how_to_guides/multiple_scores",
+      "destination": "https://www.docs.langchain.com/langsmith/multiple-scores"
+    },
+    {
+      "source": "/evaluation/how_to_guides/prebuilt_evaluators",
+      "destination": "https://www.docs.langchain.com/langsmith/prebuilt-evaluators"
+    },
+    {
+      "source": "/evaluation/how_to_guides/pytest",
+      "destination": "https://www.docs.langchain.com/langsmith/pytest"
+    },
+    {
+      "source": "/evaluation/how_to_guides/rate_limiting",
+      "destination": "https://www.docs.langchain.com/langsmith/rate-limiting"
+    },
+    {
+      "source": "/evaluation/how_to_guides/renaming_experiment",
+      "destination": "https://www.docs.langchain.com/langsmith/work-with-experiments"
+    },
+    {
+      "source": "/evaluation/how_to_guides/repetition",
+      "destination": "https://www.docs.langchain.com/langsmith/repetition"
+    },
+    {
+      "source": "/evaluation/how_to_guides/run_evals_api_only",
+      "destination": "https://www.docs.langchain.com/langsmith/run-evals-api-only"
+    },
+    {
+      "source": "/evaluation/how_to_guides/run_evaluation_from_prompt_playground",
+      "destination": "https://www.docs.langchain.com/langsmith/run-evaluation-from-prompt-playground"
+    },
+    {
+      "source": "/evaluation/how_to_guides/set_up_feedback_criteria",
+      "destination": "https://www.docs.langchain.com/langsmith/set-up-feedback-criteria"
+    },
+    {
+      "source": "/evaluation/how_to_guides/share_dataset",
+      "destination": "https://www.docs.langchain.com/langsmith/manage-datasets#share-a-dataset"
+    },
+    {
+      "source": "/evaluation/how_to_guides/summary",
+      "destination": "https://www.docs.langchain.com/langsmith/summary"
+    },
+    {
+      "source": "/evaluation/how_to_guides/upload_existing_experiments",
+      "destination": "https://www.docs.langchain.com/langsmith/upload-existing-experiments"
+    },
+    {
+      "source": "/evaluation/how_to_guides/use_langchain_off_the_shelf_evaluators_old",
+      "destination": "https://www.docs.langchain.com/langsmith/prebuilt-evaluators"
+    },
+    {
+      "source": "/evaluation/how_to_guides/version_datasets",
+      "destination": "https://www.docs.langchain.com/langsmith/manage-datasets#version-a-dataset"
+    },
+    {
+      "source": "/evaluation/how_to_guides/vitest_jest",
+      "destination": "https://www.docs.langchain.com/langsmith/vitest-jest"
+    },
+    {
+      "source": "/evaluation/tutorials",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluation-quickstart"
+    },
+    {
+      "source": "/evaluation/tutorials/index",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluation-quickstart"
+    },
+    {
+      "source": "/evaluation/tutorials/agents",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-complex-agent"
+    },
+    {
+      "source": "/evaluation/tutorials/aligning_evaluator",
+      "destination": "https://www.docs.langchain.com/langsmith/improve-judge-evaluator-feedback"
+    },
+    {
+      "source": "/evaluation/tutorials/backtesting",
+      "destination": "https://www.docs.langchain.com/langsmith/run-backtests-new-agent"
+    },
+    {
+      "source": "/evaluation/tutorials/evaluation",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-chatbot-tutorial"
+    },
+    {
+      "source": "/evaluation/tutorials/rag",
+      "destination": "https://www.docs.langchain.com/langsmith/evaluate-rag-tutorial"
+    },
+    {
+      "source": "/evaluation/tutorials/swe-benchmark",
+      "destination": "https://www.docs.langchain.com/langsmith/swe-benchmark"
+    },
+    {
+      "source": "/evaluation/tutorials/testing",
+      "destination": "https://www.docs.langchain.com/langsmith/testing"
+    },
+    {
+      "source": "/administration/concepts",
+      "destination": "https://www.docs.langchain.com/langsmith/administration-overview"
+    },
+    {
+      "source": "/administration/concepts/index",
+      "destination": "https://www.docs.langchain.com/langsmith/administration-overview"
+    },
+    {
+      "source": "/administration/how_to_guides",
+      "destination": "https://www.docs.langchain.com/langsmith/set-up-a-workspace"
+    },
+    {
+      "source": "/administration/how_to_guides/index",
+      "destination": "https://www.docs.langchain.com/langsmith/administration-overview"
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 }