One API for hundreds of AI models, with a single key.
Updated ranking
The best AI tools for developers
AI for developers: unified model APIs, inference infrastructure, chatbots over your own documents and API observability. We compare usage-based pricing and ease of integration.
Compare the top 3 side by side · Not sure which to pick? Answer 3 questions
4
The ranking
Inference infrastructure for serving models in production.
Open-source platform for building RAG chatbots on your documents.
API observability: what your API does, without instrumenting code.
Comparison table
| Tool | Price | Free trial | Platforms | Rating | Link |
|---|---|---|---|---|---|
| AIML API | Free trial | Yes | Web | VisitAIML API (opens in a new tab) | |
| Baseten | Free trial | Yes | Web | VisitBaseten (opens in a new tab) | |
| FastGPT | Free trial | Yes | Web | VisitFastGPT (opens in a new tab) | |
| Akita | Free trial | Yes | Web | VisitAkita (opens in a new tab) |
Frequently asked questions
What is AIML API and who is it for?
A gateway that unifies hundreds of models (text, image, audio) behind a single OpenAI-compatible API. Built for developers who want to switch models without rewriting integrations.
When should I choose Baseten over self-hosting a model?
When you need reliable production inference without maintaining GPUs: Baseten scales, monitors and bills per usage. For experimenting, its free starting credits are enough.
Is FastGPT free?
The code is open source and free to self-host; the managed cloud has usage-based paid plans. It is one of the cheapest ways to build a chatbot over your own documents.
What does Akita add to my API?
Automatic observability: it detects endpoints, errors and latencies by watching traffic, with no invasive agents or manual instrumentation. Useful for teams inheriting undocumented APIs.
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