FAQ

Reviewed by Proof · Updated

Definition

The luv13 FAQ answers the questions people ask most about the API, each in a sentence or two, using only facts luv13 has published or that were checked live.

Key takeaways

  • luv13 is an OpenAI-compatible API at https://api.luv13.ai/v1 serving seven open-weight models.
  • Every model costs $0.33 per 1M tokens, input the same as output, from prepaid credit.
  • Keys start with sk-luv13- and come from the dashboard.
  • Answers marked "not published yet" are waiting on the operator.

Getting started

What is the base URL? https://api.luv13.ai/v1.

How do I get a key? Sign in to the dashboard with Google or email and create one. It's shown once. See Authentication.

Which models can I use? Seven, listed by GET /v1/models: luv13/deepseek-v4-pro, luv13/deepseek-v4.1-flash, luv13/glm-5.3, luv13/glm-5.3-flash, luv13/kimi-k3, luv13/kimi-k3-fast and luv13/qwen-3.8-27b (as of 2026-09-30). See the model list.

Does my OpenAI code work? Chat completion code does, after changing the base URL, key and model id. Embeddings, the Responses API and other endpoints aren't served. See Migrating from OpenAI.

Price and billing

How much does it cost? $0.33 per 1M tokens on every model; input and output cost the same. 800k in + 200k out = 1.0M tokens = $0.33. See Pricing.

Is there a subscription? No. You top up prepaid credit by card (through Stripe) from $5, and usage draws it down.

Am I charged for errors? No. luv13.ai/docs says failed or empty calls aren't charged.

What happens when my balance runs out? Not published yet.

Using it

Can models read images? Five of the seven accept images; all return text. See Image Input.

Can I call luv13 from a web page? Not directly; luv13 rejects cross-origin browser calls, and your key would be exposed. Use your own server. See Browser Requests.

Does it support streaming and tool calling? Both are requested in the OpenAI format, but per-model support isn't published yet. See Streaming on luv13 and Tool Calling on luv13.

What are the rate limits? See Limits. luv13 runs on single-provider capacity, so under load requests can queue or fail; retry with backoff.

Is there a status page? Not published yet. GET /v1/models works as a free check; see Health Checks.

Data

Are my prompts logged or used for training? Not published yet. The privacy notice is still being written. See Data and Privacy.

How do I contact luv13? Email [email protected]. See Contact and Support.

Try it

curl https://api.luv13.ai/v1/chat/completions \
  -H "Authorization: Bearer $LUV13_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "luv13/glm-5.3-flash", "messages": [{"role": "user", "content": "ping"}]}'