forked from phoenix-oss/llama-stack-mirror
267 lines
9.3 KiB
Python
267 lines
9.3 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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from typing import AsyncGenerator
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from fireworks.client import Fireworks
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from llama_models.datatypes import CoreModelId
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from llama_models.llama3.api.chat_format import ChatFormat
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from llama_models.llama3.api.datatypes import Message
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from llama_models.llama3.api.tokenizer import Tokenizer
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from llama_stack.apis.inference import * # noqa: F403
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from llama_stack.distribution.request_headers import NeedsRequestProviderData
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from llama_stack.providers.utils.inference.model_registry import (
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build_model_alias,
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ModelRegistryHelper,
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)
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from llama_stack.providers.utils.inference.openai_compat import (
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get_sampling_options,
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process_chat_completion_response,
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process_chat_completion_stream_response,
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process_completion_response,
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process_completion_stream_response,
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)
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from llama_stack.providers.utils.inference.prompt_adapter import (
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chat_completion_request_to_prompt,
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completion_request_to_prompt,
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convert_message_to_dict,
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request_has_media,
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)
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from .config import FireworksImplConfig
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MODEL_ALIASES = [
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build_model_alias(
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"fireworks/llama-v3p1-8b-instruct",
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CoreModelId.llama3_1_8b_instruct.value,
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),
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build_model_alias(
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"fireworks/llama-v3p1-70b-instruct",
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CoreModelId.llama3_1_70b_instruct.value,
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),
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build_model_alias(
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"fireworks/llama-v3p1-405b-instruct",
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CoreModelId.llama3_1_405b_instruct.value,
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),
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build_model_alias(
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"fireworks/llama-v3p2-1b-instruct",
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CoreModelId.llama3_2_1b_instruct.value,
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),
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build_model_alias(
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"fireworks/llama-v3p2-3b-instruct",
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CoreModelId.llama3_2_3b_instruct.value,
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),
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build_model_alias(
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"fireworks/llama-v3p2-11b-vision-instruct",
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CoreModelId.llama3_2_11b_vision_instruct.value,
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),
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build_model_alias(
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"fireworks/llama-v3p2-90b-vision-instruct",
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CoreModelId.llama3_2_90b_vision_instruct.value,
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),
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build_model_alias(
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"fireworks/llama-guard-3-8b",
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CoreModelId.llama_guard_3_8b.value,
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),
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build_model_alias(
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"fireworks/llama-guard-3-11b-vision",
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CoreModelId.llama_guard_3_11b_vision.value,
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),
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]
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class FireworksInferenceAdapter(
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ModelRegistryHelper, Inference, NeedsRequestProviderData
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):
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def __init__(self, config: FireworksImplConfig) -> None:
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ModelRegistryHelper.__init__(self, MODEL_ALIASES)
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self.config = config
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self.formatter = ChatFormat(Tokenizer.get_instance())
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async def initialize(self) -> None:
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pass
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async def shutdown(self) -> None:
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pass
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def _get_client(self) -> Fireworks:
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fireworks_api_key = None
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if self.config.api_key is not None:
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fireworks_api_key = self.config.api_key
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else:
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provider_data = self.get_request_provider_data()
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if provider_data is None or not provider_data.fireworks_api_key:
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raise ValueError(
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'Pass Fireworks API Key in the header X-LlamaStack-ProviderData as { "fireworks_api_key": <your api key>}'
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)
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fireworks_api_key = provider_data.fireworks_api_key
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return Fireworks(api_key=fireworks_api_key)
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async def completion(
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self,
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model_id: str,
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content: InterleavedTextMedia,
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sampling_params: Optional[SamplingParams] = SamplingParams(),
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response_format: Optional[ResponseFormat] = None,
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stream: Optional[bool] = False,
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logprobs: Optional[LogProbConfig] = None,
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) -> AsyncGenerator:
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model = await self.model_store.get_model(model_id)
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request = CompletionRequest(
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model=model.provider_resource_id,
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content=content,
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sampling_params=sampling_params,
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response_format=response_format,
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stream=stream,
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logprobs=logprobs,
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)
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if stream:
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return self._stream_completion(request)
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else:
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return await self._nonstream_completion(request)
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async def _nonstream_completion(
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self, request: CompletionRequest
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) -> CompletionResponse:
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params = await self._get_params(request)
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r = await self._get_client().completion.acreate(**params)
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return process_completion_response(r, self.formatter)
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async def _stream_completion(self, request: CompletionRequest) -> AsyncGenerator:
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params = await self._get_params(request)
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# Wrapper for async generator similar
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async def _to_async_generator():
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stream = self._get_client().completion.create(**params)
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for chunk in stream:
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yield chunk
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stream = _to_async_generator()
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async for chunk in process_completion_stream_response(stream, self.formatter):
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yield chunk
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def _build_options(
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self, sampling_params: Optional[SamplingParams], fmt: ResponseFormat
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) -> dict:
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options = get_sampling_options(sampling_params)
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options.setdefault("max_tokens", 512)
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if fmt:
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if fmt.type == ResponseFormatType.json_schema.value:
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options["response_format"] = {
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"type": "json_object",
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"schema": fmt.json_schema,
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}
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elif fmt.type == ResponseFormatType.grammar.value:
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options["response_format"] = {
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"type": "grammar",
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"grammar": fmt.bnf,
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}
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else:
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raise ValueError(f"Unknown response format {fmt.type}")
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return options
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async def chat_completion(
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self,
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model_id: str,
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messages: List[Message],
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sampling_params: Optional[SamplingParams] = SamplingParams(),
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tools: Optional[List[ToolDefinition]] = None,
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tool_choice: Optional[ToolChoice] = ToolChoice.auto,
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tool_prompt_format: Optional[ToolPromptFormat] = ToolPromptFormat.json,
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response_format: Optional[ResponseFormat] = None,
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stream: Optional[bool] = False,
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logprobs: Optional[LogProbConfig] = None,
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) -> AsyncGenerator:
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model = await self.model_store.get_model(model_id)
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request = ChatCompletionRequest(
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model=model.provider_resource_id,
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messages=messages,
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sampling_params=sampling_params,
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tools=tools or [],
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tool_choice=tool_choice,
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tool_prompt_format=tool_prompt_format,
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response_format=response_format,
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stream=stream,
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logprobs=logprobs,
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)
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if stream:
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return self._stream_chat_completion(request)
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else:
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return await self._nonstream_chat_completion(request)
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async def _nonstream_chat_completion(
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self, request: ChatCompletionRequest
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) -> ChatCompletionResponse:
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params = await self._get_params(request)
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if "messages" in params:
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r = await self._get_client().chat.completions.acreate(**params)
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else:
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r = await self._get_client().completion.acreate(**params)
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return process_chat_completion_response(r, self.formatter)
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async def _stream_chat_completion(
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self, request: ChatCompletionRequest
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) -> AsyncGenerator:
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params = await self._get_params(request)
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async def _to_async_generator():
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if "messages" in params:
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stream = self._get_client().chat.completions.acreate(**params)
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else:
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stream = self._get_client().completion.acreate(**params)
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async for chunk in stream:
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yield chunk
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stream = _to_async_generator()
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async for chunk in process_chat_completion_stream_response(
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stream, self.formatter
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):
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yield chunk
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async def _get_params(
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self, request: Union[ChatCompletionRequest, CompletionRequest]
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) -> dict:
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input_dict = {}
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media_present = request_has_media(request)
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if isinstance(request, ChatCompletionRequest):
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if media_present:
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input_dict["messages"] = [
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await convert_message_to_dict(m) for m in request.messages
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]
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else:
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input_dict["prompt"] = chat_completion_request_to_prompt(
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request, self.get_llama_model(request.model), self.formatter
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)
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else:
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assert (
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not media_present
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), "Fireworks does not support media for Completion requests"
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input_dict["prompt"] = completion_request_to_prompt(request, self.formatter)
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# Fireworks always prepends with BOS
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if "prompt" in input_dict:
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if input_dict["prompt"].startswith("<|begin_of_text|>"):
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input_dict["prompt"] = input_dict["prompt"][len("<|begin_of_text|>") :]
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return {
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"model": request.model,
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**input_dict,
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"stream": request.stream,
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**self._build_options(request.sampling_params, request.response_format),
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}
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async def embeddings(
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self,
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model_id: str,
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contents: List[InterleavedTextMedia],
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) -> EmbeddingsResponse:
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raise NotImplementedError()
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