A GENEROUS API FOR BUILDERS

$600/month of GPT-5.6 API usage for $30

Build with GPT-5.6 Luna, Terra, and Sol with a daily allowance of 20$ (*).

Get accessSee the math

No extra usage charges. No rollover. Available 24/7.

* A fresh $20/day allowance, measured against published OpenAI API list prices.

Based on a $20 daily allowance over 30 days. Equivalent-value figures use published OpenAI API list prices and do not represent OpenAI-issued credits. Cheap Frontier is an independent service.

DAILY CAPACITY

How many coding-agent requests per day?

A practical estimate using the same standard request shape across Luna, Terra, and Sol.

Estimated requests per day
Luna
~2,941 requests / day
Terra
~1,176 requests / day
Sol
~588 requests / day
Numbers assume a standard coding-agent request.

ESTIMATE METHODOLOGY

How the daily request estimate works

We model one standard coding-agent request, price it at each model's published API list prices, then divide the $20 daily allowance by that cost.

Fresh input
700 tokens
Cached input
52,000 tokens
Output
150 tokens
Cache rate
98.7%

This is illustrative, not guaranteed. Actual request counts change with prompt size, cache reuse, output length, and the model you choose.

ONE ENDPOINT, THREE ROUTES

Match the model to the work.

01Volume
gpt-5.6-luna

Fast, cost-efficient GPT-5.6 for high-volume tasks, subagents, and routine work.

300K context
02Balanced
gpt-5.6-terra

Strong reasoning and coding with a better efficiency profile for everyday agent work.

300K context
03Frontier
gpt-5.6-sol

The flagship route for hard reasoning, architecture, debugging, and high-stakes decisions.

300K context

SIMPLE PRICING

One plan. Fresh capacity every day.

Predictable daily capacity without surprise usage charges or complicated token bundles.

$30/ month

A fresh $20 daily allowance, worth up to ~$600 over 30 days at published OpenAI API list prices.

  • GPT-5.6 Luna, Terra, and Sol
  • OpenAI-compatible API
  • Usage and API key dashboard
  • Daily UTC reset, no rollover
  • No extra charges
Get Cheap FrontierSubject to fair-use, availability, and product terms. Equivalent allowance uses published API list prices.

THREE STEPS

Point your client. Start building.

01

Get your key

Create a Cheap Frontier API key from your dashboard.

02

Configure your client

Point it at the Cheap Frontier base URL and set your API key.

03

Build

Use Luna, Terra, or Sol. Usage is tracked automatically.

FAQ

The precise version.

Is this $20 of actual OpenAI credits every day?

The $20 figure is an equivalent-usage allowance calculated using published OpenAI API list prices.

Which models are included?

GPT-5.6 Luna, GPT-5.6 Terra, and GPT-5.6 Sol.

Can I use the API all day?

Yes. There is no daily usage window. Your allowance is available 24/7 until the day's quota is consumed.

Does unused allowance roll over?

No. Your allowance resets each day and unused capacity does not carry forward.

What happens at the daily limit?

New requests are rejected until the next UTC daily reset. Your subscription is not automatically charged more.

What context length is supported?

Cheap Frontier currently exposes a conservative 300K-token context limit for every public model route.