Hey everyone,
I spent an entire day trying to figure out how to use the "Trial credit for GenAI App Builder" (~$1,000 / ₩1,510,026) that appeared in my GCP billing dashboard. I tried connecting it to Claude Code, Kilo Code, VSCode, Gemini API — nothing worked. Finally figured out why.
TL;DR: This credit is NOT for general API usage. It's enterprise-only.
What it CANNOT be used for (things you'll probably try first):
- ❌ Gemini API (Google AI Studio) — won't apply
- ❌ Claude on Vertex AI (Anthropic partner models)
- ❌ Kilo Code / Roo Code / any VSCode AI extension
- ❌ Veo 3 / Imagen video/image generation
- ❌ General Compute, Storage, or other GCP services
What it CAN be used for:
- ✅ Vertex AI Search (enterprise document search)
- ✅ Grounded Generation API (RAG-as-a-Service)
- ✅ Dialogflow CX
- ✅ Agent Builder (enterprise AI agents)
Basically it's a trial credit for enterprise B2B services, not a general-purpose AI API credit. The name is incredibly misleading.
What actually works for AI coding (free or cheap):
| Goal | Solution |
|---|---|
| Claude Code on Mac | Set ANTHROPIC_API_KEY in ~/.zshrc, pay per use |
| Free Gemini in VSCode | Kilo Code + Google AI Studio free API key (gemini-2.5-pro) |
| Use GCP credit for Claude | Only works with the standard $300 free trial credit, not this one |
Hope this saves someone a wasted day. Feel free to ask if you have questions!
u/Devkang0921 — 5 days ago