Chrome Extension Downloader
#1Also does api, like OpenAI API. Choose Chrome Extension Downloader if you want to start without paying.
FreemiumAPI
At a glance
OpenAI API vs 9All 9 alternatives
Ranked by upvotesHaystack
#2Also does rag, like OpenAI API. Choose Haystack if you need to self-host or audit the source, or if your work leans toward search.
PaidOpen source
LangChain
#3Also does rag, like OpenAI API. Choose LangChain if you need to self-host or audit the source.
PaidOpen source
LlamaIndex
#4Also does rag, like OpenAI API. Choose LlamaIndex if you need to self-host or audit the source.
PaidOpen source
Vanna.ai
#5Also does rag, like OpenAI API. Choose Vanna.ai if you need to self-host or audit the source, or if your work leans toward database, fine tuning.
PaidOpen source
Calmo
#6Also does rag, like OpenAI API. Choose Calmo if your work leans toward customer support, automation.
Paid1
AI/ML API
#7Also does rag, like OpenAI API. Choose AI/ML API if your work leans toward education.
Paid
Capacity
#8Also does rag, like OpenAI API. Choose Capacity if your work leans toward customer support, automation.
Paid
OpenRouter
#9Also does api, like OpenAI API. Pricing and platforms are the same, so try both.
PaidAPI