Free LLM API for developers and AI agents.
Get an OpenAI-compatible free LLM API key for chat completions, model listing, SDK clients, and agent tools.
OpenAI-compatible
Use /v1/chat/completions and /v1/models with familiar clients.
No token meter on free testing
The free plan is request-limited, not surprise-billed by token usage.
Agent-friendly
Works with desktop clients, coding agents, SDKs, and curl.
Quick setup
Create an account, copy your yolo_... API key, set your base URL to https://yolo-auto.com/v1, and use a public model from the models page.
Best next pages
Docs · Pricing · Models · Free AI chat · Cheap LLM API
A free LLM API that fits existing tools
Yolo-Auto speaks the OpenAI-compatible /v1 format, so most tools only need a base URL, API key, and model name change.
Built for testing before you scale
Use the free tier to validate model behavior, integration code, prompts, and agent wiring before switching to unlimited access.
No prompt storage
Your prompts and responses are not saved for a dashboard, training set, or resale pipeline. Usage metadata exists for limits and operations, not prompt browsing.
Who Free LLM API is actually for
Free LLM API is best for developers and power users who want model access inside tools, agents, scripts, and apps — not just a closed consumer chatbot tab.
- Free API testing before you choose a paid LLM backend.
- Desktop chat through Yolo-Auto Desktop or another compatible client.
- Developer workflows that need an API key more than a closed chatbot UI.
The useful version of free AI is programmable
Generic free AI websites are fine for one-off prompts. Yolo-Auto is more useful when you want a key, an endpoint, model IDs, examples, and a path from testing to heavier usage.
That makes these pages more than a list of buzzwords: they point to the same developer workflow behind the product.
Try Free LLM API with a normal chat completion
The fastest test is a single request against the OpenAI-compatible endpoint. Use your real Yolo-Auto API key, then swap the model ID if the models page shows a newer default.
curl
curl https://yolo-auto.com/v1/chat/completions \
-H "Authorization: Bearer yolo_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "qwen3.6-35b-a3b",
"messages": [
{ "role": "user", "content": "Give me a practical getting-started checklist for using Yolo-Auto." }
]
}'OpenAI SDK style
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.YOLO_AUTO_API_KEY,
baseURL: "https://yolo-auto.com/v1"
});
const response = await client.chat.completions.create({
model: "qwen3.6-35b-a3b",
messages: [{ role: "user", content: "Give me a practical getting-started checklist for using Yolo-Auto." }]
});
console.log(response.choices[0]?.message?.content);When to choose Yolo-Auto
You need OpenAI-compatible LLM access, predictable cost, free testing, and no prompt or response storage.
You need image generation, every model under the sun, a managed IDE, or a consumer-only chatbot with no API workflow.
Read the docs, check models, compare pricing, or review the privacy policy.
Free LLM API FAQ
What endpoint do I use?
Use https://yolo-auto.com/v1 as the base URL and send chat requests to /v1/chat/completions.
Does it work with the OpenAI SDK?
Yes. Set baseURL to the Yolo-Auto endpoint and apiKey to your yolo_ key.
Is the LLM API free forever?
The free tier is for testing and subject to current limits. Unlimited usage is available on the flat-rate plan.
Related free AI and LLM API pages
Free AI chat online with Yolo-Auto. Use a free API key with Yolo-Auto Desktop or any OpenAI-compatible chat client. No prompt storage.
Free GPT AlternativeFree GPT-style AI access through Yolo-Auto. OpenAI-compatible API, free tier, desktop chat option, and no prompt storage.
Free AI APIFree AI API access from Yolo-Auto. OpenAI-compatible chat completions, free tier, developer docs, and no prompt storage.
OpenAI-Compatible APIOpenAI-compatible API for LLM chat completions. Yolo-Auto works with common SDKs and tools using a custom base URL and API key.
Cheap LLM APICheap LLM API with flat-rate pricing. Yolo-Auto offers free testing, unlimited plan access, OpenAI-compatible routes, and no prompt storage.
ChatGPT Alternative for DevelopersChatGPT alternative for developers. Yolo-Auto provides GPT-style chat through an OpenAI-compatible API, desktop client support, and flat-rate pricing.
Free AI Tools for DevelopersFree AI tools for developers from Yolo-Auto: free API key, desktop chat option, OpenAI-compatible docs, and setup examples for agents.
Unlimited LLM APIUnlimited LLM API access from Yolo-Auto. OpenAI-compatible chat completions, free testing, flat-rate unlimited plan, and no prompt storage.
Flat-Rate AI APIFlat-rate AI API for developers. Yolo-Auto offers OpenAI-compatible chat completions, free testing, predictable pricing, and no prompt storage.
OpenAI API AlternativeOpenAI API alternative for developers. Yolo-Auto provides OpenAI-compatible chat completions, flat-rate pricing, free testing, and no prompt storage.
OpenRouter AlternativeOpenRouter alternative for developers who want OpenAI-compatible LLM access, free testing, flat-rate unlimited pricing, and no prompt storage.
Qwen APIQwen API access from Yolo-Auto. OpenAI-compatible endpoint, Qwen model routes, free testing, flat-rate upgrade, and no prompt storage.
Qwen 35B APIQwen 35B API access with Yolo-Auto. Use Qwen3.6-35B-A3B through an OpenAI-compatible endpoint for chat, code, and agents.
LLM API for Coding AgentsLLM API for coding agents. Yolo-Auto offers OpenAI-compatible chat completions, flat-rate pricing, free testing, and no prompt storage.
AI Agent APIAI agent API for developers. Yolo-Auto provides OpenAI-compatible chat completions, free testing, flat-rate unlimited access, and no prompt storage.
Private LLM APIPrivate LLM API from Yolo-Auto. OpenAI-compatible chat completions, no prompt storage, no training on your data, free testing, and flat-rate pricing.
No-Prompt-Logging AI APIAI API with no prompt logging. Yolo-Auto provides OpenAI-compatible chat completions, no prompt storage, no training on your data, and flat-rate pricing.
Chat Completions APIChat completions API from Yolo-Auto. OpenAI-compatible endpoint for apps, agents, SDKs, and desktop clients with free testing and flat-rate pricing.