# Best AI: Code

> 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.

- Canonical: https://serchai.com/en/best-ai/code/
- Site: Serchai (https://serchai.com) — AI tools comparator
- Language: en

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## Ranking

1. [AIML API](https://serchai.com/en/reviews/aiml-api/) — 4.4/5 · Free trial — One API for hundreds of AI models, with a single key.
2. [Baseten](https://serchai.com/en/reviews/baseten/) — 4.3/5 · Free trial — Inference infrastructure for serving models in production.
3. [FastGPT](https://serchai.com/en/reviews/fastgpt/) — 4.2/5 · Free trial — Open-source platform for building RAG chatbots on your documents.
4. [Akita](https://serchai.com/en/reviews/akita/) — 4/5 · Free trial — API observability: what your API does, without instrumenting code.

## 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.