LLM Infrastructure & APIs
LLM API providers, inference hosting platforms, custom silicon accelerators, and enterprise AI gateways — the full stack for running and managing large language models in production.
Quick Comparison
| Tool | Pricing | Open Source | Self-Hosted | Maturity |
|---|---|---|---|---|
| Cerebras | usage-based | No | No | growing |
| DeepInfra | usage-based | No | No | growing |
| Fireworks AI | usage-based | No | No | growing |
| Groq | usage-based | No | No | growing |
| LiteLLM | open-source | Yes | Yes | growing |
| Portkey | paid | No | Yes | growing |
| Together AI | usage-based | No | No | growing |
Cerebras
growingWafer-scale AI chip delivering the fastest inference and training performance
usage-based
Maximum inference speed Large model inference (405B+) Training and inference on custom silicon
DeepInfra
growingCost-optimized inference platform with 100+ models at industry-lowest prices
usage-based Free Tier
Cost-sensitive inference workloads Drop-in OpenAI API replacement Open-weight model hosting
Fireworks AI
growingFastest inference platform with Multi-LoRA serving and compound AI systems
usage-based Free Tier
Low-latency inference Multi-LoRA fine-tuned model serving Compound AI systems
Groq
growingCustom LPU silicon delivering ultra-fast, deterministic LLM inference
usage-based Free Tier
Ultra-low latency inference Real-time AI applications Deterministic performance (no jitter)
LiteLLM
growingOpen-source LLM gateway supporting 2,000+ APIs in OpenAI-compatible format
Open Source open-source Free Tier
OpenAI-compatible API abstraction Self-hosted LLM gateway Multi-provider cost management
Portkey
growingEnterprise AI gateway with 1,600+ LLM integrations and policy-as-code governance
paid
Multi-provider LLM routing Enterprise AI governance Semantic caching
Together AI
growingFull-stack inference platform with 200+ models, fine-tuning, and custom training
usage-based Free Tier
Open-weight model inference Fine-tuning (LoRA and full) Custom model training