# Lazu > Call Claude, GPT, Gemini and DeepSeek with one OpenAI-compatible API key. Pay as you go, no subscription. The stable lane runs on official APIs, every request is itemized, and Lazu never trains on your data. ## Key facts - OpenAI-compatible at `https://api.lazu.ai/v1/*` — change `base_url` and reuse official SDKs - Native provider endpoints also supported (Anthropic Messages and Gemini) - No more signing up with every provider - Give everyone a cap that actually stops - One key per person, so a leak costs one key - A bill you can read and hand to finance - Automatic failover on upstream error ## Pages - [Home](https://lazu.ai/): product overview · [中文](https://lazu.ai/zh/) · [繁體](https://lazu.ai/zh-TW/) · [日本語](https://lazu.ai/ja/) - [FAQ](https://lazu.ai/faq): common questions about migration, payment, models - [About](https://lazu.ai/about): who operates Lazu (DUBRIO LLC, Delaware) and how to reach us - [Privacy Policy](https://lazu.ai/privacy): how Lazu handles account, API usage, OAuth, and payment information - [Terms of Service](https://lazu.ai/terms): terms for accounts, gateway usage, and billing ## Models - [Model catalog](https://lazu.ai/models): every model with live prices on both lanes, context length and capabilities ([Markdown](https://lazu.ai/models.md)) - Each model has its own page, e.g. `https://lazu.ai/models/anthropic/`, with a `.md` and a `.json` sibling - Machine-readable models and prices: [https://lazu.ai/models.json](https://lazu.ai/models.json) ## Lazu Studio Lazu Studio is the image and video creation app on Lazu: many image and video models in one place, the same prompt tried across models, pay per image or per second from a prepaid balance, no subscription. - [Lazu Studio](https://lazu.ai/studio): the prompt box to make an image, and the wall of public works with their prompts, models and sizes; filter by kind, model and aspect ratio - [Models](https://lazu.ai/studio/models): every Studio image and video model, each with sample works and its price per image or per second - [Pricing](https://lazu.ai/studio/pricing): top-up amounts and each model's price by size, quality or duration - Each public work has its own page at `https://lazu.ai/studio/works/` with the full prompt, model, size and date; creators who chose to be credited have a profile at `https://lazu.ai/studio/u/` - Side-by-side comparisons of two models on the same prompt: `https://lazu.ai/studio/compare/-vs-` - Studio sitemap: [https://lazu.ai/studio/sitemap.xml](https://lazu.ai/studio/sitemap.xml) ## Blog - [Blog](https://lazu.ai/blog): model launches, tool setup guides and price comparisons ([RSS](https://lazu.ai/blog/rss.xml)) ## Documentation - [Docs](https://lazu.ai/docs): quickstart, examples, API reference - [API Reference](https://lazu.ai/docs/api-reference): interactive OpenAPI reference - [Examples](https://lazu.ai/docs/examples): cURL / Python / JavaScript / TypeScript / Go - [Changelog](https://lazu.ai/docs/changelog): API updates ## Home page content One account for every model. One bill you can actually read. lazu is the AI gateway for developers and small teams. Connect Claude Code, Codex or an SDK, then trace each task through its session, request receipts and team spend. ### Four headaches, one back office - No more signing up with every provider：Claude, GPT, Gemini and DeepSeek all live in lazu. Fund it once and the whole company can use any of them — no separate accounts, top-ups or invoices. - Give everyone a cap that actually stops：$50 for a new hire, $30 for a script. When the cap is reached the requests stop — you do not find out from next month's invoice. - One key per person, so a leak costs one key：No shared company key. If someone's key ends up in a public repo, disable that one — everyone else keeps working. - A bill you can read and hand to finance：Who, which model, when, how much — line by line. Group by person or model and export it as a spreadsheet. ### Three steps, running in ten minutes - Sign up and fund：Signing up creates a team account. Top up from $10; your first top-up gets 10% extra. - Configure your gateway：Choose the models and routes you want to use in the console. - Create a key：Paste the key into your tool and see its usage in the console. ## FAQ ### Can I self-host Lazu? Lazu is offered as a hosted service at lazu.ai. If you need a dedicated or on-premise deployment, contact us and we will walk through the options. ### How many models are supported? Every model you can call is listed at lazu.ai/models with live prices and the last 7 days of availability: models from OpenAI, Anthropic, Google, DeepSeek, Moonshot (Kimi), Zhipu (GLM), Alibaba (Qwen) and MiniMax. With a key, GET /api/models/catalog returns the same list for that key. ### Which model makers are available? OpenAI, Anthropic, Google, DeepSeek, Moonshot (Kimi), Zhipu (GLM), Alibaba (Qwen) and MiniMax. New models are added to the model catalog and the changelog as they become available. ### How to migrate from OpenAI? Change two lines: set base_url from https://api.openai.com/v1 to https://api.lazu.ai/v1, then replace api_key with your Lazu key. Your application code can keep using the official OpenAI Python, JavaScript, or Go SDKs. ### Can I use Claude and GPT directly from China? Yes. Use the Lazu endpoint at https://api.lazu.ai and connect directly from domestic IP addresses without a VPN or proxy. Each model page shows its availability over the last 7 days. ### How is pricing calculated? Input, output and cache tokens are counted separately and billed at the published price of the lane you use. There is no monthly fee and no minimum spend. ### What is the difference between the stable and discount lanes? The stable lane runs on each maker's official API, is billed at the list price, has the highest availability and suits every use. The discount lane is a reverse-engineered route: a third-party supplier serves the model through its official client, not the official API. It costs far less, but availability varies, a failed request does not fall back to the stable lane, and the supplier may add its own system prompt. So use it only inside the matching agent tool: Claude models in Claude Code, GPT models in Codex, Gemini models in Antigravity. For your own code, or anywhere the output must be controlled exactly, use the stable lane. Both lanes work with the same key, and each key picks the lane per model. ### Which payment methods are supported? Top up online through Stripe with a card (Visa, Mastercard and others) or Alipay. Balances are in US dollars. ### Does Lazu train on my data? How is it stored? No. Lazu never trains on your data. Request and response content is recorded in request logs and kept for 180 days, so we can look into a specific request with you, and is then deleted. Usage records keep metadata only (time, model, token counts, cost, status and request_id) for 90 days. ### Are streaming responses supported? Yes. Chat completion endpoints support SSE streaming with stream: true, matching OpenAI-compatible behavior. ### Is the native Anthropic API supported? Yes. In addition to OpenAI-compatible /v1/chat/completions, Lazu exposes /v1/messages for Anthropic-compatible requests using x-api-key and anthropic-version headers. Extended Thinking, Prompt Caching, and Tool Use are supported through that path. ### What are the rate limits? Rate limits depend on the model and your account. You can see live usage and limits in the console; for higher RPM or TPM, contact support@lazu.ai. ### How can I monitor usage and cost? The console provides usage dashboards by day, week, and month, with breakdowns by model, endpoint, and token type. Every request includes an x-request-id that can be searched in the logs page. ### How should I troubleshoot errors? Every response includes an x-request-id header. Search that ID in the console's usage log to see when the request ran, which lane served it, its status, the token billing and any error details. ### Is there a new-customer offer? Your first top-up gets 10% extra, up to $10, credited with the payment. Signing up itself adds no credit, and top-ups aren't refundable. ### Is there a referral reward? Yes. Copy your referral link from the wallet (lazu.ai/?ref=your-name), or add ?ref=your-name to any lazu.ai link. For 30 days after a friend signs up with it, you get 10% of every top-up they pay, up to $30 per friend, each credited after 7 days. Up to 100 friends count per person, and people in a team with you don't count. Rewards are Lazu credit and can't be withdrawn.