Buddy AI
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● Live & free β€” by Buddy Corporation

One API key.
Every model you need.

Stop juggling separate signups and keys for every AI provider. Sign in once, create a key, call one endpoint β€” and pick any model per request, from fast free models to the world's frontier personas.

GitHub accounts must be at least 60 days old to reduce abuse from throwaway accounts.

0
endpoint
€
to start
0
frontier personas
0
models
The world's best models β€” in one place

Frontier personas, ranked by capability. Every one of them is available with Buddy Premium β€” no five separate subscriptions.

Context windows, compared

Longer context = the whole book in one prompt. Ours span from 128K to 2M tokens.

The gateway models

Same endpoint every time β€” just change the model field to switch. Live catalog below.

How it works
1
Sign in with GitHub

One account, one key. No credit card, no email spam β€” just a 60-day-old GitHub account.

2
Create an API key

Name it anything, set your own daily quota (or leave it unlimited), choose an expiration.

3
Call one endpoint

OpenAI-compatible format. Swap the model field per request β€” free, premium or paid.

Why Buddy Router
πŸ”‘

One key, not five

Skip separate accounts and keys for every model provider β€” one key covers all of them.

🧭

Pick a model per request

Same endpoint every time. Just change the "model" field to switch.

⭐

Frontier personas

Claude Opus 4.8, GPT-5.6 Sol, Gemini 3.1 Pro, GPT-5.5 Pro, Claude Fable 5, Grok 4.5 & more β€” try them free before subscribing.

🎁

Free premium trial

Every signed-in account gets a free trial pool of premium messages β€” no card required to taste the frontier.

πŸ›‘οΈ

Abuse-resistant by design

GitHub-only sign-in, account-age checks, and bot verification keep it usable for everyone.

⚑

No setup on your side

OpenAI-compatible request format β€” drop-in for tools that already speak that format.

Loved by builders

They switched to one key and never looked back.

β˜…β˜…β˜…β˜…β˜…

β€œOne key for every model changed my workflow completely. The GPT-5.6 Sol persona is genuinely impressive.”

MB
Maya B.
Indie developer
β˜…β˜…β˜…β˜…β˜…

β€œThe free premium trial sold me instantly. Clean API, no Bearer hassle β€” and the frontier personas punch way above the price.”

JK
Jonas K.
ML engineer
β˜…β˜…β˜…β˜…β˜…

β€œWe route our whole prototype through Buddy. 60€/year for this lineup is a no-brainer, and the chat UI is gorgeous.”

SR
SofΓ­a R.
Startup founder
⭐ Buddy Premium

Every frontier persona. Unlimited usage. Cancel anytime.

6€/month
or 60€/year β€” 2 months free
Quickstart

No "Bearer" prefix needed β€” the bare key in the Authorization header works.

curl -X POST https://buddy-router.pages.dev/api/v1/chat/completions \
  -H "Authorization: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-oss-20b",
    "messages": [{"role": "user", "content": "hi"}]
  }'

Sign in to see your keys, the full model list and its specs, and ready-to-use snippets in cURL, Python, JavaScript and Node.js.

FAQ
Is it actually free?

Yes β€” standard access doesn't cost anything. Free models are unlimited-ish (you choose your key's daily quota). Premium personas add a 6€/month or 60€/year option, with a free trial before you pay anything.

What are "premium personas"?

They're Buddy's frontier-tier products β€” Claude Opus 4.8, Claude Fable 5, GPT-5.6 Sol, GPT-5.5 Pro, Gemini 3.1 Pro, Mistral Large 3, Grok 4.5, Llama 4 and Kimi K3. Each is its own branded identity with its own personality. Subscribe for unlimited use, or spend your free trial pool first.

Why does it require a GitHub account 60+ days old?

It's a simple anti-abuse gate. It stops the service from being drained by bots spinning up throwaway accounts, without requiring any personal info beyond your existing GitHub profile.

What's the rate limit?

Each key gets a daily request quota you choose when creating it (leave blank for unlimited), resetting at midnight UTC. You can hold up to 3 active keys. The premium trial pool is a one-time budget of 10 premium messages per account.

How do payments work?

Premium is billed securely through PayPal (6€/month or 60€/year). You can manage or cancel your subscription anytime from your PayPal account.

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