LAYSO | One API for Leading AI Models at Lower Cost
Access leading chat, image, video, and audio AI models with one LAYSO API key, reliable routing, transparent usage-based billing, and lower API costs.
What is LLM routing?
A unified API between your app and model providers. Use one endpoint and API key to access multiple models and manage usage and billing together
Model and API guides
Use one LAYSO API key for chat, coding, and image generation. Find model IDs, request examples, and pricing links in the guides below.
- Claude Fable 5 API
Use the Messages API for writing, code review, and multi-step workflows.
- GPT Image 2 API
Generate images from prompts or edit an existing image.
- GPT-5.6 API
Compare Sol, Terra, and Luna and choose a model for your workload.
- Grok 4.6 API
Try streaming chat and tool calls with the OpenAI-compatible API.
How each request is billed
Top up your credit balance and pay for actual model usage. The credits you receive are shown at checkout. No monthly fee or subscription.
Quick use
Connect your app through the API, or download the client for your AI tools.
Before running, set LAYSO_API_KEY and LAYSO_MODEL to your key and an OpenAI-compatible model ID.