AI API Platform

Onie AI API

One API for Claude, Gemini, DeepSeek, GLM, Kimi & GPT-OSS. Compatible with OpenAI & Anthropic Claude SDKs. Up to 40% below list price. Start with just $5.

Why Onie AI API?

Works with OpenAI & Anthropic Claude SDKs. Switch your base URL, keep your code.

2 SDKs Compatible

Works with OpenAI SDK and Anthropic Claude SDK. Change one line of code, keep everything else.

Up to 40% Cheaper

Claude Sonnet 5 at $1.20/1M input — up to 40% below list price. GPT-OSS 120B from just $0.0216/1M tokens.

2 Key Formats

OpenAI (sk-onie-) and Claude (sk-ant-onie-) key formats supported.

Spending Limits

Set spending limits per API key. Auto-stop when limit reached. Never overspend.

Real-time Usage

Track tokens, costs, and requests in real-time. Per-model and per-key analytics.

Streaming Support

Full streaming support for real-time text generation. SSE protocol compatible.

Models & Pricing

Choose the right model for your workload. All prices per 1 million tokens.

Flagship Models

Best quality for complex tasks. Deep reasoning, creative writing, and advanced analysis.

Claude Fable 5Most Capable

Input/1M

$6.00 ≈150.000₫

Output/1M

$30.00 ≈750.000₫

Context

200K

ID

claude-fable-5
Claude Opus 5New

Input/1M

$3.00 ≈75.000₫

Output/1M

$15.00 ≈375.000₫

Context

200K

ID

claude-opus-5
Claude Opus 4.8Most Popular

Input/1M

$3.00 ≈75.000₫

Output/1M

$15.00 ≈375.000₫

Context

200K

ID

claude-opus-4-8
Claude Opus 4.7

Input/1M

$3.00 ≈75.000₫

Output/1M

$15.00 ≈375.000₫

Context

200K

ID

claude-opus-4-7
Claude Opus 4.6

Input/1M

$3.00 ≈75.000₫

Output/1M

$15.00 ≈375.000₫

Context

200K

ID

claude-opus-4-6
Claude Opus 4.6 ThinkingExtended Thinking

Input/1M

$3.00 ≈75.000₫

Output/1M

$15.00 ≈375.000₫

Context

200K

ID

claude-opus-4-6-thinking
Claude Opus 4.5

Input/1M

$3.00 ≈75.000₫

Output/1M

$15.00 ≈375.000₫

Context

200K

ID

claude-opus-4-5-20251101
Claude Opus 4.1

Input/1M

$9.00 ≈225.000₫

Output/1M

$45.00 ≈1.125.000₫

Context

200K

ID

claude-opus-4-1-20250805

Complete Pricing Overview

Compare all models at a glance. Click any category above for details.

OpenAI & Claude SDK Compatible

Use your existing OpenAI or Anthropic Claude code. Just change the base URL and API key — everything else stays the same.

Model IDs

Call every model directly by its ID — the same ID works across both SDKs. No aliases needed.

OpenAI SDK

claude-sonnet-5Direct
gemini-3-flashDirect
gpt-oss-120b-mediumDirect

Anthropic Claude SDK

claude-opus-4-8Direct
claude-sonnet-5Direct
claude-haiku-4-5-20251001Direct

API Key Formats

All formats work with the same endpoint. Choose based on your SDK.

O

OpenAI

sk-onie-...

Python/JS SDK, LangChain, LlamaIndex

A

Anthropic Claude

sk-ant-onie-...

Anthropic Claude SDK (Python/JS)

Base URL: https://api.onie.net/ai/v1

Quick Start

Get started in minutes with your favorite language.

from openai import OpenAI

client = OpenAI(
    api_key="sk-onie-xxxxxxxxxxxx",
    base_url="https://api.onie.net/ai/v1"
)

response = client.chat.completions.create(
    model="claude-sonnet-5",
    messages=[{"role": "user", "content": "Hello!"}],
    max_tokens=100
)
print(response.choices[0].message.content)

Start Building with AI

Create an API key with just $5 and start calling AI models in minutes. Compatible with OpenAI & Anthropic Claude SDKs. No vendor lock-in.

Claude, Gemini & GPT-OSS models. Up to 40% below list price.

Get API KeyAPI Documentation