Model Serving

smart_toy

LLM Inference Servers

vLLM

High-throughput LLM serving engine with PagedAttention for efficient memory management and continuous batching for optimal GPU utilization.

Key Features
  • PagedAttention for KV cache management
  • Continuous batching for throughput
  • Tensor and pipeline parallelism
  • OpenAI-compatible API
  • Support for quantization (AWQ, GPTQ)
Use Cases
  • High-throughput LLM inference
  • Production chatbot backends
  • Large language model APIs
  • Multi-user serving
Alternatives
TGITensorRT-LLMRay ServeLiteLLM
Text Generation Inference (TGI)

Hugging Face's optimized inference server for LLMs with streaming, token streaming, and production-ready features.

Key Features
  • Token streaming support
  • Quantization (bitsandbytes, GPTQ)
  • Tensor parallelism
  • Flash Attention integration
  • Safetensors weight loading
Use Cases
  • Hugging Face model deployment
  • Streaming text generation
  • Production LLM serving
  • Multi-GPU inference
Alternatives
vLLMTensorRT-LLMOpenLLMTriton
TensorRT-LLM

NVIDIA's high-performance LLM inference optimization SDK with custom kernels for maximum GPU efficiency.

Key Features
  • Custom CUDA kernels
  • INT4/INT8/FP8 quantization
  • In-flight batching
  • Multi-GPU/multi-node support
  • KV cache optimization
Use Cases
  • Maximum performance inference
  • NVIDIA GPU deployments
  • Low-latency applications
  • Cost-optimized serving
Alternatives
vLLMTGIFasterTransformerDeepSpeed-Inference
Ollama

Local LLM serving made easy with bundled models, automatic quantization, and simple API for running models on consumer hardware.

Key Features
  • One-command model deployment
  • Automatic quantization
  • CPU and GPU support
  • OpenAI-compatible API
  • Model library with popular LLMs
Use Cases
  • Local development
  • Privacy-sensitive applications
  • Offline inference
  • Consumer hardware deployment
Alternatives
LM StudioLocalAIGPT4AllLlama.cpp
model_training

General ML Serving Frameworks

Triton Inference Server

NVIDIA's production-ready inference server supporting multiple frameworks with dynamic batching and concurrent model execution.

Key Features
  • Multi-framework support (PyTorch, TensorFlow, ONNX)
  • Dynamic batching
  • Model ensembles
  • Multi-model concurrent execution
  • HTTP/gRPC/C++ APIs
Use Cases
  • Multi-model serving
  • High-throughput inference
  • Computer vision pipelines
  • Production ML systems
Similar Technologies
TorchServeTensorFlow ServingKServeRay Serve
TorchServe

PyTorch's official model serving framework with built-in support for multi-model deployment and A/B testing.

Key Features
  • Native PyTorch integration
  • Multi-model management
  • Model versioning
  • Custom preprocessing/postprocessing
  • Metrics and logging
Use Cases
  • PyTorch model deployment
  • Computer vision serving
  • NLP model APIs
  • Research model deployment
Similar Technologies
TritonTensorFlow ServingBentoMLSeldon Core
KServe (KFServing)

Kubernetes-native serverless ML inference platform with auto-scaling, canary rollouts, and explainability.

Key Features
  • Serverless autoscaling
  • Canary and blue/green deployments
  • Explainability integration
  • Multi-framework support
  • Istio-based traffic management
Use Cases
  • Kubernetes ML deployments
  • Serverless inference
  • Enterprise ML platforms
  • Cloud-native applications
Similar Technologies
Seldon CoreBentoMLCortexRay Serve
Ray Serve

Scalable model serving framework built on Ray with Python-first API and support for model composition and business logic.

Key Features
  • Python-first API
  • Model composition and chaining
  • Dynamic request batching
  • Distributed serving
  • Integration with Ray ecosystem
Use Cases
  • Multi-model pipelines
  • Complex inference workflows
  • Python-native deployments
  • Distributed ML serving
Similar Technologies
KServeBentoMLTritonSeldon Core
cloud

Cloud Managed Inference

AWS SageMaker Endpoints

Fully managed deployment service with auto-scaling, A/B testing, and multi-model endpoints for production ML inference.

Key Features
  • Managed infrastructure
  • Auto-scaling
  • Multi-model endpoints
  • Shadow testing
  • Built-in monitoring
Use Cases
  • Production model deployment on AWS
  • Scalable inference endpoints
  • Multi-variant testing
  • Enterprise ML on AWS
Similar Technologies
Vertex AIAzure ML EndpointsBedrock
Google Vertex AI Predictions

Google Cloud's managed prediction service with custom containers, auto-scaling, and integrated monitoring.

Key Features
  • Custom container support
  • Online and batch predictions
  • Automatic scaling
  • Model monitoring
  • Explainable AI
Use Cases
  • GCP ML deployments
  • Scalable predictions
  • Batch inference jobs
  • AutoML deployments
Similar Technologies
SageMakerAzure MLAI Platform
Azure Machine Learning Endpoints

Azure's managed endpoints for real-time and batch inference with MLflow integration and managed online endpoints.

Key Features
  • Managed online endpoints
  • Batch endpoints
  • MLflow integration
  • Blue/green deployments
  • Kubernetes integration
Use Cases
  • Azure ML deployments
  • Enterprise inference
  • Batch scoring
  • MLOps on Azure
Similar Technologies
SageMakerVertex AIAKS + KServe
AWS Bedrock

Fully managed service for foundation models with serverless API access to models from Anthropic, AI21, Stability AI, and more.

Key Features
  • Serverless foundation model access
  • No infrastructure management
  • Custom model fine-tuning
  • Guardrails and safety filters
  • Pay-per-use pricing
Use Cases
  • LLM applications
  • Serverless AI
  • Foundation model access
  • Quick AI prototyping
Similar Technologies
Azure OpenAIVertex AI Model GardenOpenAI API

Inference Serving Patterns

PatternDescriptionLatencyCostUse Case
Real-time (Synchronous)Immediate response to API requestLow (ms)HighChatbots, user-facing apps
Batch InferenceProcess multiple requests togetherHigh (minutes)LowBulk processing, analytics
StreamingProcess data as it arrivesMediumMediumReal-time analytics, IoT
AsynchronousQueue-based processingMedium (seconds)MediumBackground jobs, non-urgent
Edge InferenceOn-device model executionVery LowVery LowMobile apps, IoT devices

Inference Optimization Techniques

Model Optimization

  • Quantization: Reduce precision (INT8, INT4)
  • Pruning: Remove unnecessary weights
  • Distillation: Train smaller model from larger
  • Model Compression: GPTQ, AWQ, GGUF formats

Serving Optimization

  • Batching: Process multiple requests together
  • Caching: Cache frequent responses/embeddings
  • Request Coalescing: Merge similar requests
  • KV Cache: Reuse key-value calculations

Hardware Optimization

  • GPU Acceleration: CUDA, TensorRT optimization
  • Multi-GPU: Tensor/pipeline parallelism
  • Specialized Hardware: TPUs, Inferentia, Trainium
  • Flash Attention: Memory-efficient attention

Architecture Patterns

  • Auto-scaling: Dynamic replica adjustment
  • Load Balancing: Distribute requests efficiently
  • Model Routing: Route to appropriate model size
  • Canary Deployment: Gradual rollout