Deprecated Terms

As LlamaIndex continues to evolve, many class names and APIs have been adjusted, improved, and deprecated.

The following is a list of previously popular terms that have been deprecated, with links to their replacements.

GPTSimpleVectorIndex

This has been renamed to VectorStoreIndex, as well as unifying all vector indexes to a single unified interface. You can integrate with various vector databases by modifying the underlying vector_store.

Please see the following links for more details on usage.

• Index Usage Pattern
• Vector Store Guide
• Vector Store Integrations

GPTVectorStoreIndex

This has been renamed to VectorStoreIndex, but it is only a cosmetic change. Please see the following links for more details on usage.

• Index Usage Pattern
• Vector Store Guide
• Vector Store Integrations

LLMPredictor

The LLMPredictor object is no longer intended to be used by users. Instead, you can setup an LLM directly and pass it into the Settings or the interface using the LLM. The LLM class itself has similar attributes and methods as the LLMPredictor.

• LLMs in LlamaIndex
• Setting LLMs in the Settings

PromptHelper and max_input_size/

The max_input_size parameter for the prompt helper has since been replaced with context_window.

The PromptHelper in general has been deprecated in favour of specifying parameters directly in the service_context and node_parser.

See the following links for more details.

• Configuring settings in the Settings
• Parsing Documents into Nodes

ServiceContext

The ServiceContext object has been deprecated in favour of the Settings object.

• Configuring settings in the Settings

llama-index-legacy

The llama-index-legacy package has been deprecated and removed from the repository. Please see the latest getting started guide for the latest information and usage.

• Getting Started

AgentRunner/AgentWorker (and related classes)

The AgentRunner and AgentWorker classes have been deprecated in favour of AgentWorkflow and Workflows.

This includes the following deprecated classes:

• AgentRunner
• FunctionCallingAgent
• FunctionCallingAgentWorker
• llama_index.core.agent.ReActAgent (use llama_index.core.agent.workflow.ReActAgent)
• ReActAgentWorker
• LATSAgentWorker
• CoAAgentWorker
• FnAgentWorker
• QueryPipelineAgentWorker
• MultiModalReActAgentWorker
• IntrospectiveAgentWorker
• SelfReflectiveAgentWorker
• ToolInteractiveReflectionAgentWorker
• LLMCompilerAgentWorker
• QueryUnderstandAgentWorker

QueryPipeline (and related classes)

QueryPipeline has been deprecated in favour of Workflows.

This includes the following deprecated classes:

• AgentFnComponent
• AgentInputComponent
• BaseAgentComponent
• CustomAgentComponent
• ArgPackComponent
• FnComponent
• FunctionComponent
• InputComponent
• RouterComponent
• SelectorComponent
• ToolRunnerComponent
• StatefulFnComponent
• LoopComponent
• etc.