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462 models, one key

Every top AI model. For less.

One API key for Claude, GPT, Gemini and 462 models in all. Buy credits below list price and pay only for what you use.

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See prices

Claude Sonnet 5

anthropic/claude-sonnet-5

live list price

List price · 1M output

$10.00

With smaaart

$7.65

−23.5%demo discountinput $2.00 → $1.53
  • Same model, same answer
  • Pay per token
  • No subscription

Models from the labs you already use

  • Anthropic
  • OpenAI
  • Google
  • xAI
  • DeepSeek
  • Qwen
  • Mistral
  • Moonshot AI
How it works

Three steps from sign-up to savings.

No subscription and no seat fees. Top up when you need to and spend only on what you call.

  1. Step 1

    Top up your balance

    Pick an amount and pay by card. Your order fills from the cheapest credits on offer first, and you see the full quote before you pay.

  2. Step 2

    Get one API key

    Sign in with email or a wallet and create a key. It works with any OpenAI-compatible client, so your code barely changes.

  3. Step 3

    Call any model

    Claude, GPT, Gemini, open models. Each request is billed at the model's list price and paid with credits you bought for less.

Why smaaart

Everything you need to run models for less.

Same models, same answers, same code. The only thing that changes is the bill.

One key for every model

Stop juggling provider accounts. One key and one balance cover 462 models from 64 providers.

  • anthropic
  • openai
  • google
  • x-ai
  • deepseek
  • qwen
  • mistralai
  • moonshotai

−23.5%

demo · $100 order

Below list price

Credits are worth $1 of usage each, and you buy them for less.

Private by default

Requests only go to zero-data-retention endpoints. We never store your prompts or the answers, only the token counts and cost of each call.

See every call

A live dashboard shows your balance, spend by day and by model, and the latency our gateway adds, measured on your own requests.

Try it

Run a prompt and price your top-up.

The playground replays a saved answer on a real model with its live price. The quote card shows what a top-up would cost, line by line.

Playground
demo · replayed answer

Pick a prompt

anthropic/claude-sonnet-5

Ready

List · 1M output

$10.00

smaaart · 1M output−23.5%

$7.65
List price live · discount demo
Buy credits
live book

In US dollars, at list price.

$

Pay with

Sign in with email or a wallet, then pay on Whop.

Your quote

Your order takes the cheapest credits first, then the next ones; past the last offer, credits are sold at list price. Card: 5% platform fee on face value, card processing shown at checkout. USDG: buy and activate in one transaction, 5% of the credits is burned as the activation fee. Buying CREDIT to hold or resell costs 2% instead.

The discount

Where the discount comes from.

Credits are sold on an open list of offers. You always get the cheapest ones first.

  1. 1

    Credits are listed below $1

    Each credit pays for $1 of usage. People who hold credits list them for less, at set discounts.

  2. 2

    Your order takes the cheapest first

    A top-up fills from the deepest discount, then the next one. Anything left is sold at list price.

  3. 3

    You see the price before you pay

    The quote shows every line, fees included. Today smaaart seeds the offers itself.

Credits on offer
$5,295demo · seed data
DiscountDepthCredits
  • −30.0%
    $40
  • −27.5%
    $85
  • −25.0%
    $150
  • −22.5%
    $220
  • −20.0%
    $300
  • −17.5%
    $380
  • −15.0%
    $450
  • −12.5%
    $520
  • −10.0%
    $600
  • −7.5%
    $700
  • −5.0%
    $850
  • −2.5%
    $1,000
  • List priceAlways available∞
Recent buys
Settled purchases
Loading…

Real purchases show up here once they settle. This list never shows sample data.

Quick start

Switch in two lines.

Point your client at smaaart and swap the key. Model names, streaming and tool calls keep working as they are.

Base URL

https://api.smaaart.io/v1

API key example

sk-smaaart-7f3a9c2e1b…

.env+2 lines
# any OpenAI-compatible client reads these
OPENAI_BASE_URL=https://openrouter.ai/api/v1
OPENAI_API_KEY=sk-or-v1-…
OPENAI_BASE_URL=https://api.smaaart.io/v1
OPENAI_API_KEY=sk-smaaart-…
Prices

Look up any model before you switch.

List prices load live from OpenRouter. The smaaart column applies the net rate of a $100 top-up on the demo offers, fees included.

Model prices
live list pricesdemo discount
Modelsmaaart / 1M out
GPT-6.1 Sol Pro
openai/gpt-6.1-sol-pro
$7.65−23.5%
GPT-6.1 Sol
openai/gpt-6.1-sol
$7.65−23.5%
Claude Sonnet 5.5
anthropic/claude-sonnet-5.5
$7.65−23.5%
Qwen3.8 Max Prime
qwen/qwen3.8-max-prime
$9.18−23.5%
GPT-6 Luna Pro
openai/gpt-6-luna-pro
$0.38−23.5%
GPT-6 Luna
openai/gpt-6-luna
$0.38−23.5%
GPT-6 Sol Pro
openai/gpt-6-sol-pro
$7.65−23.5%
GPT-6 Sol
openai/gpt-6-sol
$7.65−23.5%
Claude Opus 5.5
anthropic/claude-opus-5.5
$15.30−23.5%
Grok 4.7
x-ai/grok-4.7
$4.59−23.5%
Qwen3.8 Omni Flash
qwen/qwen3.8-omni-flash
$0.36−23.5%
DeepSeek V4.1 Flash
deepseek/deepseek-v4.1-flash
$0.38−23.5%
Showing 12 of 80 · 462 models available
Dashboard

Know where every credit goes.

Your balance, spend by day and by model, and the latency our gateway adds to your own requests. Shown here with a sample account.

smaaart.io/account
sample account
Balance
$142.57
Spend, last 7 days
$112.00
Requests, last 7 days
4,927
Added latency (p50)
14 ms

Spend by day

Spend by model

  • anthropic/claude-sonnet-5$48.20

    892 requests · 43%

  • openai/gpt-6-sol$36.10

    645 requests · 32%

  • google/gemini-3.8-flash$19.40

    1,234 requests · 17%

  • deepseek/deepseek-v4.1-flash$8.30

    2,156 requests · 7%

FAQ

Good to know before you start.

Still curious? The docs cover the API in detail.

Search smaaart

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