GPT · Claude · Gemini · AI model API

One API for GPT, Claude, Gemini, and frontier AI models

noonoo.ai is an OpenAI-, Anthropic-, and Gemini-compatible AI API gateway for accessing text, coding, image, and video models through one developer account.

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AI model API gateway

Choose the right model for every task without a single-provider lock-in

AI models differ in reasoning, coding, context length, speed, and multimodal capability. A unified gateway brings provider differences behind familiar API interfaces, so teams can test and switch models while keeping the application architecture stable.

GPT

OpenAI compatible

Access GPT and coding models through compatible Chat Completions and Responses APIs while keeping familiar SDK, tool-calling, and streaming workflows.

Claude

Anthropic compatible

Use the Messages API for Claude models across long-context, reasoning, content, and complex development tasks.

Gemini

Gemini compatible

Access Gemini through compatible model and content-generation routes while managing authentication and usage in the same account.

Multimodal models

Image and video

Go beyond text with available image and video generation models without rebuilding account and billing integrations for every provider.

OpenAI-compatible API

Keep your SDK and change the connection details

For a typical OpenAI SDK integration, copy the Base URL and API key from the console and select a model available to your account. The developer documentation also includes request examples for the Claude Messages API and Gemini-compatible routes.

See endpoints and authentication →

from openai import OpenAI

client = OpenAI(
    base_url="YOUR_NOONOO_BASE_URL/v1",
    api_key="YOUR_NOONOO_API_KEY",
)

response = client.chat.completions.create(
    model="YOUR_AVAILABLE_MODEL",
    messages=[{"role": "user", "content": "Hello"}],
)

Why use a unified AI model API

Reduce duplicate integrations and choose models based on product quality, reliability, and cost.

One API key

Centralize access to GPT, Claude, Gemini, and multimodal models instead of managing separate provider credentials and permissions.

Compatible with existing code

Keep familiar OpenAI or Anthropic SDKs. Most migrations only require changing the Base URL, API key, and model name.

Unified usage and billing

Review API keys, model usage, request logs, and balance in one console so you can compare costs for real workloads.

Switch models by task

Choose the right model for reasoning, coding, speed, long context, or multimodal work within the same integration.

Practical use cases for a multi-model API

AI apps and agents

Give chat products, workflows, and agents one model layer that can use GPT, Claude, or Gemini for each task.

Coding and automation

Connect code generation, review, data processing, and backend automation to suitable models with consistent authentication.

Model evaluation and cost control

Compare quality, latency, and usage with similar request patterns, then change model choices without rebuilding the integration.

The model catalog changes over time. Confirm current models, capabilities, and prices in the developer console, and test with real workloads before production use.

GPT, Claude, and AI model API FAQ

Can one API access GPT, Claude, and Gemini?

Yes. noonoo.ai provides multi-model access through one account and API key, with OpenAI-, Anthropic-, and Gemini-compatible interfaces. Current model availability is shown in the console.

How do I migrate an existing OpenAI SDK integration to noonoo.ai?

Keep your existing SDK and main request structure, replace the Base URL and API key with the values from the console, and select an available model.

Does it support the Claude Messages API and streaming?

Yes. Claude models are available through an Anthropic-compatible Messages API with standard streaming responses. See the developer documentation for complete parameters.

How should I choose an AI model for my task?

Choose based on reasoning, coding, speed, context, and multimodal requirements, then test quality, latency, and cost with your real workload through the same gateway.

How is AI model API usage billed?

Text models are generally billed by input, output, and cached token usage, while image and video generation use their corresponding output specifications. Current prices appear on the public pricing page and in the console.

Start building your multi-model AI application

Create an account for an API key, or review compatible endpoints and request examples first.

Get started Developer docs