Best Portkey Alternatives 2026

Top alternatives to Portkey for code assistants

Portkey

★★★★☆ Freemium

Full-stack LLM gateway with routing, fallbacks, semantic caching, and guardrails

5 Best Alternatives to Portkey

#1

LiteLLM

★★★★☆ 4.4/5 Open Source

Open source proxy, self-hosted, similar routing features

Open source Python library to call 100+ LLMs with one unified OpenAI-compatible interface

100+ LLM providers via one interfaceOpenAI-compatible Python and REST APISelf-hosted proxy with load balancingAutomatic retries and provider fallbacks
#2

Helicone

★★★★☆ 4.3/5 Freemium

Simpler observability proxy, easier initial setup

LLM observability proxy for logging, caching, and analyzing every AI call

Zero-code setup via URL redirectComplete request/response loggingCost tracking per API key and userSemantic caching for repeat queries
#3

Langfuse

★★★★☆ 4.4/5 Open Source

Open source observability with stronger eval tools

Open source LLM observability platform for traces, evaluations, and prompt management

Full LLM call tracing with input/output captureAgent and multi-step workflow visualizationPrompt versioning and A/B testingLLM-as-judge and human eval scoring
#4

NotDiamond

★★★★☆ 4/5 Freemium

AI-driven model routing based on task quality optimization

AI model router that automatically picks the best LLM for each task

Automatic task classification and model routingSupports GPT-4o, Claude, Gemini, Llama, MistralOpenAI SDK-compatible drop-in replacementCost and quality tradeoff configuration
#5

Helicone

★★★★☆ 4.3/5 Freemium

Hosted LLM observability with a simpler setup and lower pricing for low-volume use

LLM observability proxy for logging, caching, and analyzing every AI call

Zero-code setup via URL redirectComplete request/response loggingCost tracking per API key and userSemantic caching for repeat queries

Quick Comparison

Tool Rating Pricing Category Why Consider It
LiteLLM ★★★★☆ 4.4 Open Source Code Assistants Open source proxy, self-hosted, similar routing features
Helicone ★★★★☆ 4.3 Freemium Code Assistants Simpler observability proxy, easier initial setup
Langfuse ★★★★☆ 4.4 Open Source Code Assistants Open source observability with stronger eval tools
NotDiamond ★★★★☆ 4 Freemium Productivity & Workflow AI-driven model routing based on task quality optimization
Helicone ★★★★☆ 4.3 Freemium Code Assistants Hosted LLM observability with a simpler setup and lower pricing for low-volume use