by Hanzo AI · Techstars '17

Zen LM

Frontier language models with 4K–262K context. OpenAI-compatible API. $5 free credit on every new account.

Models & Pricing

All prices per 1M tokens. $5 free credit on signup (expires 30 days). $1 minimum balance required.

Model Context Input Output
zen4 flagship
202K
$3.00
$9.60
zen4-ultra best
202K
$3.00
$9.60
zen4-pro
131K
$2.70
$2.70
zen4-max
131K
$3.60
$3.60
zen4-thinking reasoning
131K
$2.70
$2.70
zen4-mini
40K
$0.60
$0.60
zen4-coder code
262K
$3.60
$3.60
zen4-coder-pro
262K
$4.50
$4.50
zen4-coder-flash
262K
$1.50
$1.50
zen3-omni multimodal
202K
$1.80
$6.60
zen3-vl vision
131K
$0.45
$1.80
zen3-nano
40K
$0.30
$0.30
zen3-guard safety
40K
$0.30
$0.30
zen3-embedding
8K
$0.39

Quickstart

POST https://api.hanzo.ai/v1/chat/completions
# Works with any OpenAI-compatible client curl https://api.hanzo.ai/v1/chat/completions \ -H "Authorization: Bearer $HANZO_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "zen4", "messages": [{"role": "user", "content": "Hello, Zen."}] }'
# Python — drop-in replacement for OpenAI from openai import OpenAI client = OpenAI( base_url="https://api.hanzo.ai/v1", api_key="your-hanzo-api-key", ) response = client.chat.completions.create( model="zen4", messages=[{"role": "user", "content": "Hello, Zen."}], ) print(response.choices[0].message.content)

Why Zen

OpenAI Compatible

Drop-in replacement. Works with every SDK, framework, and tool that supports the OpenAI API.

14 Models

From zen3-nano (fast, cheap) to zen4-ultra (maximum intelligence). Code, vision, reasoning, multimodal.

$5 Free Credit

$5 free credit on signup, expires in 30 days. Prepaid usage with $1 minimum balance. No surprise bills.

By Hanzo AI

Techstars '17. Production-grade infrastructure. Built by the team behind Hanzo, Lux, and Zoo.