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🦑 TruLens
truera/trulens
🏠 Home
🚀 Getting Started
🚀 Getting Started
📓 Quickstarts
📓 Quickstarts
📓 TruLens Quickstart
📓 Ground Truth Evaluations
📓 Blocking Guardrails Quickstart
📓 Persist Groundtruth Datasets
📓 Evaluate Streaming Apps
📓 Text to Text Quickstart
📓 Logging Human Feedback
📓 Groundtruth Evaluations for Retrieval Systems
📓 Build and Evaluate a Web Search Agent
⭐ Core Concepts
⭐ Core Concepts
☔ Feedback Functions
⟁ RAG Triad
🏆 Honest, Harmless, Helpful Evals
🎈Viewing Results
🎈Viewing Results
🗺️ Component Guides
🗺️ Component Guides
Instrumentation
Instrumentation
🦜️🔗 LangChain Integration
🦜️ LangGraph Integration
🦙 LlamaIndex Integration
Logging
Logging
❄️ Logging in Snowflake
Logging Methods
🎯 Evaluation
🎯 Evaluation
Anatomy of a Feedback Function
Feedback Implementations
Feedback Implementations
Stock Feedback Functions
📓 Custom Feedback Functions
Feedback Selectors
Feedback Selectors
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Selector Shortcuts
Feedback Aggregation
Feedback Aggregation
Feedback Aggregation
Running Feedback Functions
Running Feedback Functions
Running with your app
Running on existing data
Generating Test Cases
Generating Test Cases
Generating Test Cases
🏃 Runtime Evaluation
🏃 Runtime Evaluation
In-line Evaluations
Guardrails
Other
Other
Moving from TruLens Eval
Uninstalling TruLens
📚 API Reference
📚 API Reference
providers
providers
📦 Snowflake Cortex
📦 Snowflake Cortex
endpoint
provider
📦 LangChain
📦 LangChain
endpoint
provider
google
google
endpoint
provider
📦 Amazon Bedrock
📦 Amazon Bedrock
endpoint
provider
📦 HuggingFace
📦 HuggingFace
endpoint
provider
📦 LiteLLM
📦 LiteLLM
endpoint
provider
📦 OpenAI
📦 OpenAI
endpoint
provider
apps
apps
app
basic
custom
custom
Table of contents
custom
Classes
virtual
📦 LlamaIndex
📦 LlamaIndex
guardrails
llama
tru_llama
tru_llama_workflow
langgraph
langgraph
inline_evaluations
trace_provider
tru_graph
📦 LangChain
📦 LangChain
guardrails
langchain
tru_chain
📦 NeMo Guardrails
📦 NeMo Guardrails
tru_rails
connectors
connectors
📦 Snowflake
📦 Snowflake
connector
otel_exporter
snowflake_event_table_db
utils
utils
server_side_evaluation_artifacts
server_side_evaluation_stored_procedure
sis_dashboard_artifacts
❌ trulens_eval
core
core
app
database
database
base
connector
connector
base
default
exceptions
legacy
legacy
migration
migrations
migrations
data
env
orm
sqlalchemy
utils
enums
experimental
feedback
feedback
custom_metric
endpoint
feedback
feedback_function_input
provider
selector
guardrails
guardrails
base
instruments
run
schema
schema
app
base
dataset
event
feedback
groundtruth
record
select
types
session
utils
utils
asynchro
constants
containers
deprecation
evaluator
imports
json
keys
pace
pyschema
python
serial
signature
text
threading
trace_compression
trace_provider
trulens
feedback
feedback
computer
dummy
dummy
endpoint
provider
embeddings
feedback
generated
groundtruth
llm_provider
output_schemas
prompts
v2
v2
feedback
provider
provider
base
dashboard
dashboard
appui
components
components
record_viewer
record_viewer_otel
constants
display
main
run
streamlit
tabs
tabs
Compare
Leaderboard
Records
utils
utils
dashboard_utils
metadata_utils
notebook_utils
records_utils
sis_utils
streamlit_compat
ux
ux
components
styles
benchmark
benchmark
benchmark_frameworks
benchmark_frameworks
tru_benchmark_experiment
generate
generate
generate_test_set
test_cases
🧑🍳 Cookbook
🧑🍳 Cookbook
Frameworks
Frameworks
Langchain
Langchain
LangChain Ensemble Retriever
LangChain Quickstart
Multi-agent Data Tasks
LangGraph astream
LangGraph Quickstart
TruGraph Tutorial: Instrumenting LangGraph Applications with OTel
Llamaindex
Llamaindex
LlamaIndex Async
Tracing and Evaluating Multi-Agent Systems with TruLens and LlamaIndex AgentWorkflow
GroundTruth evaluation for LlamaIndex applications
LlamaIndex Hybrid Retriever + Reranking + Guardrails
Evaluating Multi-Modal RAG
Query Planning in LlamaIndex
📓 LlamaIndex Quickstart with Otel
Measuring Retrieval Quality
Evaluating Sentence Window RAG
LlamaIndex Stream
Llama-Index Workflows
Models
Models
Anthropic
Anthropic
Anthropic Quickstart
Claude 3 Quickstart
Azure
Azure
Azure OpenAI LangChain Quickstart
Azure OpenAI Llama Index Quickstart
Bedrock
Bedrock
AWS Bedrock
Deploy, Fine-tune Foundation Models with AWS Sagemaker, Iterate and Monitor with TruEra
Google
Google
Multimodal Evaluations with Gemini
Google Quickstart
Google Vertex
local and OSS models
local and OSS models
Vectara HHEM Evaluator Quickstart
LiteLLM Quickstart
Local vs Remote HuggingFace Feedback Functions
Ollama Quickstart
OpenAI OSS Models as Judge with TruLens
Snowflake cortex
Snowflake cortex
Cortex Finetuning Experiments
❄️ Snowflake Quickstart with Cortex LLM Functions
Use cases
Use cases
📓 Context Filters
Language Verification
Model Comparison
Moderation
PII Detection
❄️ Snowflake with Key-Pair Authentication
Evaluating Summarization with TruLens
Debugging evaluation results with TruLens Hotspots
Iterate on rag
Iterate on rag
Iterating on LLM Apps with TruLens
Iterating on LLM Apps with TruLens
Iterating on LLM Apps with TruLens
Iterating on LLM Apps with TruLens
Iterating on LLM Apps with TruLens
Snowflake ai stack
Snowflake ai stack
Snowflake AI Stack: Notebook
Vector stores
Vector stores
Faiss
Faiss
LangChain with FAISS Vector DB
Milvus
Milvus
Iterating with RAG on Milvus
Milvus
Mongodb
Mongodb
Atlas quickstart
Pinecone
Pinecone
Pinecone Configuration Choices on Downstream App Performance
Simple Pinecone setup with LlamaIndex + Eval
Weaviate
Weaviate
Evaluating Weaviate Query Agents
🔭 OpenTelemetry
🔭 OpenTelemetry
Semantic conventions
🤝 Contributing
🤝 Contributing
🧭 Design
📦 Release Policies
✅ Standards
💣 Tech Debt
⛅ Optional Packages
✨ Database Migration
🏁 Release History
✍️ Blog
✍️ Blog
Archive
Archive
2026
2025
2024
Categories
Categories
General
Table of contents
custom
Classes
🏠 Home
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apps
trulens.apps.custom
¶
trulens.apps.custom
¶
Soon to be deprecated in favor of
TruApp
.
Classes
¶
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