
OpenRouter
liteLLM
Portkey
ToAPIs
Prism by Ssimplfi
Thalam
GPTImage.ai
Access OpenAI frontier models at a fraction of the cost. Drop-in OpenAI-compatible API with 75% savings on GPT-5.4, GPT-5.3-Codex, and Image-1.5 with al latest features like priority mode and websocket connection!

Simple Client Onboarding and Verification

Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | smartaipi.com | stackgo.io |
| Pricing | ||
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Smart AIPI and StackGo. For example, how are they different and which one is better?
When comparing Smart AIPI and StackGo, you can also consider the following products.



Build production-grade & reliable AI apps with Portkey
Compare Portkey to Smart AIPI or StackGo:

Enterprise AI API Gateway supporting GPT-5, Claude Sonnet 4.5, Gemini 2.5 and 50+ models. OpenAI compatible, 5-min migration, 99.9% SLA.
Compare ToAPIs to Smart AIPI or StackGo:

Prism is the best AI API proxy: one OpenAI-compatible endpoint that routes every query to the optimal model across Anthropic, OpenAI, and Google — with built-in session memory and automatic failover.
Compare Prism by Ssimplfi to Smart AIPI or StackGo:

OpenAI-compatible API gateway for GPT, Claude, Gemini, DeepSeek, Qwen, Kling and more. One key, one endpoint, one bill. Pay per token, no lock-in.
Compare Thalam to Smart AIPI or StackGo: