Model Freedom
Any model.
One API. No lock-in.
333+ models from 57+ providers, all behind a single OpenAI-compatible endpoint. Switch between Claude, GPT-4o, Llama, Gemini and Mistral by changing one string.
Switch models without changing your code
Point your existing OpenAI SDK at MegaBrain. Then change just the model name.
Before
const client = new OpenAI({
apiKey: process.env.OPENAI_API_KEY,
})
const response = await client.chat
.completions.create({
model: 'gpt-4o',
messages: [...],
})After — same SDK, any model
const client = new OpenAI({
baseURL: 'https://getmegabrain.com/api/gateway/v1',
apiKey: process.env.MEGABRAIN_API_KEY,
})
const response = await client.chat
.completions.create({
model: 'anthropic/claude-sonnet-4-5',
// or 'deepseek/deepseek-r1'
// or 'meta-llama/llama-3.3-70b-instruct'
messages: [...],
})What model freedom looks like in practice
Real scenarios where being locked to one provider costs you time or money.
Without MegaBrain
Your app is down. You scramble to rewrite API calls.
With MegaBrain
One line change to swap to GPT-4o or Llama. Zero downtime.
Without MegaBrain
You're locked in. Pay the new price or spend weeks migrating.
With MegaBrain
Switch to DeepSeek or Qwen in seconds. Same code, lower bill.
Without MegaBrain
You're running stale models because switching is too risky.
With MegaBrain
Change the model string. Test it. Roll back if needed. 5 minutes.
Without MegaBrain
Paying GPT-4o rates for simple summarization tasks.
With MegaBrain
Route cheap tasks to free models, complex tasks to frontier.
How it works
01
One base URL
Set baseURL to MegaBrain in your OpenAI SDK. Every model from every provider is now accessible.
02
Use any model ID
Pass any model ID in the format provider/model-name. Find all IDs on the Models page.
03
Same request format
Messages, tools, streaming — all work exactly like the OpenAI API. No adapter code.
04
Switch instantly
Change the model string in one place. Your app instantly uses the new model with no other changes.
05
Unified billing
One balance covers all models. No separate accounts for Anthropic, OpenAI, and Google.
06
Transparent pricing
Exact provider pricing, published on each model page. No markup, no surprises.