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Jiayi 2025-09-12 19:55:04 -07:00
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2
docs/docs/providers/inference/index.mdx
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@ -18,6 +18,6 @@ Llama Stack Inference API for generating completions, chat completions, and embe
This API provides the raw interface to the underlying models. Three kinds of models are supported:
- LLM models: these models generate "raw" and "chat" (conversational) completions.
- Embedding models: these models generate embeddings to be used for semantic search.
- Rerank models: these models reorder the documents by relevance.
- Rerank models: these models reorder the documents based on their relevance to a query.
This section contains documentation for all available providers for the **inference** API.

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docs/static/llama-stack-spec.html vendored
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@ -17875,7 +17875,7 @@
},
{
"name": "Inference",
"description": "This API provides the raw interface to the underlying models. Three kinds of models are supported:\n- LLM models: these models generate \"raw\" and \"chat\" (conversational) completions.\n- Embedding models: these models generate embeddings to be used for semantic search.\n- Rerank models: these models reorder the documents by relevance.",
"description": "This API provides the raw interface to the underlying models. Three kinds of models are supported:\n- LLM models: these models generate \"raw\" and \"chat\" (conversational) completions.\n- Embedding models: these models generate embeddings to be used for semantic search.\n- Rerank models: these models reorder the documents based on their relevance to a query.",
"x-displayName": "Llama Stack Inference API for generating completions, chat completions, and embeddings."
},
{

3
docs/static/llama-stack-spec.yaml vendored
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@ -13460,7 +13460,8 @@ tags:
- Embedding models: these models generate embeddings to be used for semantic
search.
- Rerank models: these models reorder the documents by relevance.
- Rerank models: these models reorder the documents based on their relevance
to a query.
x-displayName: >-
Llama Stack Inference API for generating completions, chat completions, and
embeddings.

2
llama_stack/apis/inference/inference.py
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@ -1162,7 +1162,7 @@ class Inference(InferenceProvider):
This API provides the raw interface to the underlying models. Three kinds of models are supported:
- LLM models: these models generate "raw" and "chat" (conversational) completions.
- Embedding models: these models generate embeddings to be used for semantic search.
- Rerank models: these models reorder the documents by relevance.
- Rerank models: these models reorder the documents based on their relevance to a query.
"""
@webmethod(route="/openai/v1/chat/completions", method="GET", level=LLAMA_STACK_API_V1, deprecated=True)

2
llama_stack/apis/models/models.py
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@ -27,7 +27,7 @@ class ModelType(StrEnum):
"""Enumeration of supported model types in Llama Stack.
:cvar llm: Large language model for text generation and completion
:cvar embedding: Embedding model for converting text to vector representations
:cvar rerank: Reranking model for reordering documents by relevance
:cvar rerank: Reranking model for reordering documents based on their relevance to a query
"""
llm = "llm"

1
llama_stack/core/routers/inference.py
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@ -191,7 +191,6 @@ class InferenceRouter(Inference):
items: list[str | OpenAIChatCompletionContentPartTextParam | OpenAIChatCompletionContentPartImageParam],
max_num_results: int | None = None,
) -> RerankResponse:
"""Route rerank requests to the appropriate provider based on the model."""
logger.debug(f"InferenceRouter.rerank: {model}")
model_obj = await self._get_model(model, ModelType.rerank)
provider = await self.routing_table.get_provider_impl(model_obj.identifier)

131
llama_stack/providers/remote/inference/nvidia/models.py
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@ -1,131 +0,0 @@
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from llama_stack.apis.models import ModelType
from llama_stack.models.llama.sku_types import CoreModelId
from llama_stack.providers.utils.inference.model_registry import (
ProviderModelEntry,
build_hf_repo_model_entry,
)
SAFETY_MODELS_ENTRIES = []
# https://docs.nvidia.com/nim/large-language-models/latest/supported-llm-agnostic-architectures.html
MODEL_ENTRIES = [
build_hf_repo_model_entry(
"meta/llama3-8b-instruct",
CoreModelId.llama3_8b_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama3-70b-instruct",
CoreModelId.llama3_70b_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama-3.1-8b-instruct",
CoreModelId.llama3_1_8b_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama-3.1-70b-instruct",
CoreModelId.llama3_1_70b_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama-3.1-405b-instruct",
CoreModelId.llama3_1_405b_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama-3.2-1b-instruct",
CoreModelId.llama3_2_1b_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama-3.2-3b-instruct",
CoreModelId.llama3_2_3b_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama-3.2-11b-vision-instruct",
CoreModelId.llama3_2_11b_vision_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama-3.2-90b-vision-instruct",
CoreModelId.llama3_2_90b_vision_instruct.value,
),
build_hf_repo_model_entry(
"meta/llama-3.3-70b-instruct",
CoreModelId.llama3_3_70b_instruct.value,
),
ProviderModelEntry(
provider_model_id="nvidia/vila",
model_type=ModelType.llm,
),
# NeMo Retriever Text Embedding models -
#
# https://docs.nvidia.com/nim/nemo-retriever/text-embedding/latest/support-matrix.html
#
# +-----------------------------------+--------+-----------+-----------+------------+
# | Model ID | Max | Publisher | Embedding | Dynamic |
# | | Tokens | | Dimension | Embeddings |
# +-----------------------------------+--------+-----------+-----------+------------+
# | nvidia/llama-3.2-nv-embedqa-1b-v2 | 8192 | NVIDIA | 2048 | Yes |
# | nvidia/nv-embedqa-e5-v5 | 512 | NVIDIA | 1024 | No |
# | nvidia/nv-embedqa-mistral-7b-v2 | 512 | NVIDIA | 4096 | No |
# | snowflake/arctic-embed-l | 512 | Snowflake | 1024 | No |
# +-----------------------------------+--------+-----------+-----------+------------+
ProviderModelEntry(
provider_model_id="nvidia/llama-3.2-nv-embedqa-1b-v2",
model_type=ModelType.embedding,
metadata={
"embedding_dimension": 2048,
"context_length": 8192,
},
),
ProviderModelEntry(
provider_model_id="nvidia/nv-embedqa-e5-v5",
model_type=ModelType.embedding,
metadata={
"embedding_dimension": 1024,
"context_length": 512,
},
),
ProviderModelEntry(
provider_model_id="nvidia/nv-embedqa-mistral-7b-v2",
model_type=ModelType.embedding,
metadata={
"embedding_dimension": 4096,
"context_length": 512,
},
),
ProviderModelEntry(
provider_model_id="snowflake/arctic-embed-l",
model_type=ModelType.embedding,
metadata={
"embedding_dimension": 1024,
"context_length": 512,
},
),
# NVIDIA Reranking models
ProviderModelEntry(
provider_model_id="nv-rerank-qa-mistral-4b:1",
model_type=ModelType.rerank,
metadata={
"endpoint": "https://ai.api.nvidia.com/v1/retrieval/nvidia/reranking",
},
),
ProviderModelEntry(
provider_model_id="nvidia/nv-rerankqa-mistral-4b-v3",
model_type=ModelType.rerank,
metadata={
"endpoint": "https://ai.api.nvidia.com/v1/retrieval/nvidia/nv-rerankqa-mistral-4b-v3/reranking",
},
),
ProviderModelEntry(
provider_model_id="nvidia/llama-3.2-nv-rerankqa-1b-v2",
model_type=ModelType.rerank,
metadata={
"endpoint": "https://ai.api.nvidia.com/v1/retrieval/nvidia/llama-3_2-nv-rerankqa-1b-v2/reranking",
},
),
# TODO(mf): how do we handle Nemotron models?
# "Llama3.1-Nemotron-51B-Instruct" -> "meta/llama-3.1-nemotron-51b-instruct",
] + SAFETY_MODELS_ENTRIES