Quantum Encoding
100+ models. 10 providers. One key.

One API.
Every AI model.

Claude, GPT-5, Grok, Gemini, DeepSeek — all through a single API key. Unified billing. One SDK. Zero vendor lock-in.

Get Your API Key View API Docs
$ npm install quantum-ai-sdk

100+

AI Models

10

Providers

6

SDK Languages

1

API Key

Five lines to your first call

Same API surface in every language. Switch models by changing a string.

$ npm install quantum-ai-sdk 
import { QuantumClient, userMessage, responseText } from "quantum-ai-sdk";

const client = new QuantumClient("qai_your_key");

const response = await client.chat({
  model: "claude-sonnet-4-6",
  messages: [userMessage("Build me a REST API for a todo app")],
});

console.log(responseText(response));
// Cost: $0.003 — billed automatically
ChatStreamingImagesVoiceVideoEmbeddingsTTSSTTRAGRealtimeBatchTool Calling

We build on it too

Every product below runs on the same API, the same billing, and the same SDK you'll use. This is our proof it works.

Mission Control

Your API playground

An AI coding workspace where an architect agent decomposes your project, assigns models, and deploys worker agents in parallel. Watch them read, write, test, and commit — in real time. Built entirely on the Quantum API.

  • Multi-model orchestration — pick a different model per task
  • Full project workspace with file I/O, git, and shell access
  • Visual workflow builder, dependency graphs, live agent streams
  • Test API calls, compare models, prototype before you code
Open Mission Control
🦆

Cosmic Duck

Your users can build this

A consumer AI app for everyone — chat, voice conversations, image generation, video, music, document processing. Desktop, Android, iOS. Same API, same credits, same key. Proof that the platform scales to consumer products.

  • Chat with any model — Claude, GPT-5, Grok, Gemini, DeepSeek
  • Realtime voice, TTS, STT, voice cloning
  • Image, video, and music generation
  • Cross-platform — Tauri desktop, Android, iOS
Visit cosmicduck.dev

Mission Control — live demo

mission-control

Every provider. You choose.

Run the same task across providers and compare results, speed, and cost. We route. You decide.

Claude

Anthropic
opus-4.6 sonnet-4.6 haiku-4.5

GPT-5

OpenAI
gpt-5.4 gpt-5-mini codex

Grok

xAI
grok-4.2 grok-4.1 grok-3

Gemini

Google
2.5-pro 2.5-flash 2.0

DeepSeek

DeepSeek
r1 v3 coder

Plus ElevenLabs, HeyGen, Stability, and more. Full model list in the docs.

Pay for what you use

No subscriptions. No seat fees. No minimum commitment. Per-token pricing, transparent on every request.

How it works

Buy credits

Top up your balance. Credits never expire. Every API call deducts the exact token cost.

Every request

Transparent cost

Every response includes the exact cost in the headers. No surprises, no hidden fees, no mystery bills.

Volume

Batch: 50% off

Submit batch jobs for async processing. Same models, same quality, half the price.

See full pricing table by model →

Start building in 30 seconds

Create an account. Get an API key. Install the SDK. That's it.

Get Your API Key Read the Docs

No credit card required. Free credits on signup.