chore: initial telemetry impl

README.md

@@ -117,6 +117,37 @@ data-designer config list      # View current settings
 
 ---
 
+## Telemetry
+
+Data Designer collects telemetry to help us improve the library for developers. We collect:
+
+* The names of models used
+* The count of input tokens
+* The count of output tokens
+
+**No user or device information is collected.** This data is not used to track any individual user behavior. It is used to see an aggregation of which models are the most popular for SDG. We will share this usage data with the community.
+
+Specifically, a model name that is defined a `ModelConfig` object, is what will be collected. In the below example config:
+
+```python
+ModelConfig(
+    alias="nv-reasoning",
+    model="openai/gpt-oss-20b",
+    provider="nvidia",
+    inference_parameters=InferenceParameters(
+        temperature=0.3,
+        top_p=0.9,
+        max_tokens=4096,
+    ),
+    )
+```
+
+The value `openai/gpt-oss-20b` would be collected.
+
+To disable telemetry capture, set `NEMO_TELEMETRY_ENABLED=false`.
+
+---
+
 ## License
 
 Apache License 2.0 – see [LICENSE](LICENSE) for details.

pyproject.toml

@@ -98,6 +98,11 @@ env = [
     "DISABLE_DATA_DESIGNER_PLUGINS=true",
 ]
 
+[tool.coverage.run]
+omit = [
+    "src/data_designer/engine/models/telemetry.py",
+]
+
 [tool.uv]
 package = true
 required-version = ">=0.7.10"

src/data_designer/engine/dataset_builders/column_wise_builder.py

@@ -1,12 +1,15 @@
 # SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 # SPDX-License-Identifier: Apache-2.0
+from __future__ import annotations
 
 import functools
+import importlib.metadata
 import json
 import logging
 import time
+import uuid
 from pathlib import Path
-from typing import Callable
+from typing import TYPE_CHECKING, Callable
 
 import pandas as pd
 
@@ -35,14 +38,21 @@
 from data_designer.engine.dataset_builders.utils.dataset_batch_manager import (
     DatasetBatchManager,
 )
+from data_designer.engine.models.telemetry import InferenceEvent, NemoSourceEnum, TaskStatusEnum, TelemetryHandler
 from data_designer.engine.processing.processors.base import Processor
 from data_designer.engine.processing.processors.drop_columns import DropColumnsProcessor
 from data_designer.engine.registry.data_designer_registry import DataDesignerRegistry
 from data_designer.engine.resources.resource_provider import ResourceProvider
 
+if TYPE_CHECKING:
+    from data_designer.engine.models.usage import ModelUsageStats
+
 logger = logging.getLogger(__name__)
 
 
+_CLIENT_VERSION: str = importlib.metadata.version("data_designer")
+
+
 class ColumnWiseDatasetBuilder:
     def __init__(
         self,
@@ -89,11 +99,12 @@ def build(
 
         generators = self._initialize_generators()
         start_time = time.perf_counter()
+        group_id = uuid.uuid4().hex
 
         self.batch_manager.start(num_records=num_records, buffer_size=buffer_size)
         for batch_idx in range(self.batch_manager.num_batches):
             logger.info(f"⏳ Processing batch {batch_idx + 1} of {self.batch_manager.num_batches}")
-            self._run_batch(generators)
+            self._run_batch(generators, batch_mode="batch", group_id=group_id)
             df_batch = self._run_processors(
                 stage=BuildStage.POST_BATCH,
                 dataframe=self.batch_manager.get_current_batch(as_dataframe=True),
@@ -114,10 +125,10 @@ def build_preview(self, *, num_records: int) -> pd.DataFrame:
         self._run_model_health_check_if_needed()
 
         generators = self._initialize_generators()
-
+        group_id = uuid.uuid4().hex
         start_time = time.perf_counter()
         self.batch_manager.start(num_records=num_records, buffer_size=num_records)
-        self._run_batch(generators, save_partial_results=False)
+        self._run_batch(generators, batch_mode="preview", save_partial_results=False, group_id=group_id)
         dataset = self.batch_manager.get_current_batch(as_dataframe=True)
         self.batch_manager.reset()
 
@@ -143,7 +154,10 @@ def _initialize_generators(self) -> list[ColumnGenerator]:
             for config in self._column_configs
         ]
 
-    def _run_batch(self, generators: list[ColumnGenerator], *, save_partial_results: bool = True) -> None:
+    def _run_batch(
+        self, generators: list[ColumnGenerator], *, batch_mode: str, save_partial_results: bool = True, group_id: str
+    ) -> None:
+        pre_batch_snapshot = self._resource_provider.model_registry.get_model_usage_snapshot()
         for generator in generators:
             generator.log_pre_generation()
             try:
@@ -166,6 +180,12 @@ def _run_batch(self, generators: list[ColumnGenerator], *, save_partial_results:
                 )
                 raise DatasetGenerationError(f"🛑 Failed to process {column_error_str}:\n{e}")
 
+        try:
+            usage_deltas = self._resource_provider.model_registry.get_usage_deltas(pre_batch_snapshot)
+            self._emit_batch_inference_events(batch_mode, usage_deltas, group_id)
+        except Exception:
+            pass
+
     def _run_from_scratch_column_generator(self, generator: ColumnGenerator) -> None:
         df = generator.generate_from_scratch(self.batch_manager.num_records_batch)
         self.batch_manager.add_records(df.to_dict(orient="records"))
@@ -289,3 +309,25 @@ def _write_configs(self) -> None:
             json_file_name="model_configs.json",
             configs=self._resource_provider.model_registry.model_configs.values(),
         )
+
+    def _emit_batch_inference_events(
+        self, batch_mode: str, usage_deltas: dict[str, ModelUsageStats], group_id: str
+    ) -> None:
+        if not usage_deltas:
+            return
+
+        events = [
+            InferenceEvent(
+                nemo_source=NemoSourceEnum.DATADESIGNER,
+                task=batch_mode,
+                task_status=TaskStatusEnum.SUCCESS,
+                model=model_name,
+                input_tokens=delta.token_usage.input_tokens,
+                output_tokens=delta.token_usage.output_tokens,
+            )
+            for model_name, delta in usage_deltas.items()
+        ]
+
+        with TelemetryHandler(source_client_version=_CLIENT_VERSION, session_id=group_id) as telemetry_handler:
+            for event in events:
+                telemetry_handler.enqueue(event)

src/data_designer/engine/models/registry.py

@@ -9,6 +9,7 @@
 from data_designer.engine.model_provider import ModelProvider, ModelProviderRegistry
 from data_designer.engine.models.facade import ModelFacade
 from data_designer.engine.models.litellm_overrides import apply_litellm_patches
+from data_designer.engine.models.usage import ModelUsageStats, RequestUsageStats, TokenUsageStats
 from data_designer.engine.secret_resolver import SecretResolver
 
 logger = logging.getLogger(__name__)
@@ -25,7 +26,7 @@ def __init__(
         self._secret_resolver = secret_resolver
         self._model_provider_registry = model_provider_registry
         self._model_configs = {}
-        self._models = {}
+        self._models: dict[str, ModelFacade] = {}
         self._set_model_configs(model_configs)
 
     @property
@@ -69,6 +70,31 @@ def get_model_usage_stats(self, total_time_elapsed: float) -> dict[str, dict]:
             if model.usage_stats.has_usage
         }
 
+    def get_model_usage_snapshot(self) -> dict[str, ModelUsageStats]:
+        return {
+            model.model_name: model.usage_stats.model_copy(deep=True)
+            for model in self._models.values()
+            if model.usage_stats.has_usage
+        }
+
+    def get_usage_deltas(self, snapshot: dict[str, ModelUsageStats]) -> dict[str, ModelUsageStats]:
+        deltas = {}
+        for model_name, current in self.get_model_usage_snapshot().items():
+            prev = snapshot.get(model_name)
+            delta_input = current.token_usage.input_tokens - (prev.token_usage.input_tokens if prev else 0)
+            delta_output = current.token_usage.output_tokens - (prev.token_usage.output_tokens if prev else 0)
+            delta_successful = current.request_usage.successful_requests - (
+                prev.request_usage.successful_requests if prev else 0
+            )
+            delta_failed = current.request_usage.failed_requests - (prev.request_usage.failed_requests if prev else 0)
+
+            if delta_input > 0 or delta_output > 0 or delta_successful > 0 or delta_failed > 0:
+                deltas[model_name] = ModelUsageStats(
+                    token_usage=TokenUsageStats(input_tokens=delta_input, output_tokens=delta_output),
+                    request_usage=RequestUsageStats(successful_requests=delta_successful, failed_requests=delta_failed),
+                )
+        return deltas
+
     def get_model_provider(self, *, model_alias: str) -> ModelProvider:
         model_config = self.get_model_config(model_alias=model_alias)
         return self._model_provider_registry.get_provider(model_config.provider)