GPT-5.6 · Claude Fable 5 · Kimi K3 — all live

One API key for 38 models—including Claude, GPT and Gemini.

Add $5 and pay vendor list price with no markup or top-up fee. Set hard per-key budgets so leaked keys and runaway agents cannot create surprise bills.

$5 minimum · no subscription · credit never expires

# same endpoint — swap the model string
curl https://api.routerplex.com/v1/chat/completions \
  -H "Authorization: Bearer $ROUTERPLEX_KEY" \
  -d '{ "model": "gpt-5.6-terra" }'
live catalog
29 models
Anthropic
5 models
MiniMax
4 models
OpenAI
3 models
Alibaba
3 models
Chat
28 models
Images
1 model
Markup
0%

FIG 01 — Live model catalog by provider.
Every model behind the same endpoint, key, and bill.

38 models · 14 providers · two API formats

OpenAIOpenAIAnthropicAnthropicGoogleGoogleDeepSeekDeepSeekAlibabaAlibabaMoonshotMoonshotZhipuZhipuMiniMaxMiniMaxByteDanceByteDanceStepFunStepFunXiaomiXiaomi

§ 02 — Why RouterPlex

Stop juggling SDKs,
keys, and billing pages.

Every provider has its own SDK, pricing model, and quota system. RouterPlex collapses all of that into one account.

Without RouterPlex
  • 11 provider accounts to manage
  • 6 SDKs, 6 auth schemes
  • 11 separate invoices a month
  • quota limits tracked in a spreadsheet
  • one provider outage → your app is down
integration time: weeks, forever
With RouterPlex
  • 1 account, 1 API key
  • the OpenAI SDK you already use
  • 1 prepaid balance, per-token billing
  • hard spend limits on every key
  • automatic fallbacks between models
integration time: base_url = "https://api.routerplex.com/v1"

11 invoices become 1 · 6 SDKs become 0 · spend limits, scoped keys, and auto fallbacks on every account

§ 03 — Pricing

Pay per token.
No markup games.

Model
Provider
Context
Input / 1M
Output / 1M
Anthropic
claude-opus-4-8
Anthropic
1M
$5.00
$25.00
OpenAI
gpt-5.5
OpenAI
256K
$5.00
$30.00
Anthropic
claude-sonnet-4-6
Anthropic
1M
$3.00
$15.00
Google
gemini-3.1-pro
Google
1M
$2.00
$12.00
DeepSeek
deepseek-v4-pro
DeepSeek
1M
$0.43
$0.87
Moonshot
kimi-k3
Moonshot
1M
$3.00
$15.00
Alibaba
qwen3.7-max
Alibaba
1M
$2.50
$7.50
OpenAI
gpt-image-2image
OpenAI
$5.00
$30.00

featured 8 of 38 live models · prices in USD per 1M tokens, billed per token

§ 03b — The switch

Every $100 you route through us
buys $100 of tokens.

On OpenRouter, topping up $100 by card costs $105.50. Here it costs $100.

RouterPlexOpenRouter
Fee when you top up$0.005.5% by card ($0.80 min) · 5% by crypto
Per-token pricesVendor list priceVendor list price
Balance can go negativeNever — requests stop at $0Yes — 402 errors until you repay
Plans with bonus creditsUp to +25% ($125 for $100)Not offered
Hard per-key budgetsEvery keyEvery key

OpenRouter figures from their published docs, July 2026.RouterPlex vs OpenRouter →Compare eight OpenRouter alternatives →

§ 04 — Plans

Pay per token.
No subscription required.

Top up when you want — a top-up is a one-time payment, not a plan. Subscribe only when the bonus credits beat topping up by hand.

Pay as you go — the default
Top up from $5, use every model at vendor list price.
No RouterPlex RPM/TPM or usage-window cap · 3 keys · credit never expires
Start with $5

§ 05 — How it works

Three steps.
Under a minute.

No subscription, no monthly fee, no lock-in. Top up from $5 and pay per token.

Start now
  1. 01

    Create your account and top up

    Sign up with email or GitHub, then top up from $5 by card or crypto. Your balance is the only thing you ever pay.

    + $5.00 balance · one-time top-up
  2. 02

    Mint a scoped key

    Create a key per project. Attach a hard budget, a model allowlist, or rate limits — spend stops the instant a cap is hit.

    sk-rpx-•••••••• · budget $10 · all models
  3. 03

    Point your SDK at us

    Keep your OpenAI client. Change the base URL, pick any model from the catalog, ship.

    base_url = "https://api.routerplex.com/v1"

§ 06 — The deal

Pay for tokens.
Nothing else.

Every model is billed at the vendor's public list price, per token, from a prepaid balance you top up by card or crypto. 37 chat and image models across 14 providers — and the meter only runs when you call one.

RouterPlexstatement / monthly
Monthly fee$0.00
Per-seat charge$0.00
Minimum spend$0.00
Top-up fee$0.00
Markup over list price$0.00
Tokens you usedlist price
Fixed cost / month$0.00

* Credit never expires. When your balance runs out, requests stop — they never overdraft.

38
models live now
11
providers
0%
markup over list price
$0.00
fee on top-ups

§ 06b — Questions

Fair questions, straight answers.

What is RouterPlex?

RouterPlex is an AI gateway that gives you one API key to call 38 models from 14 providers — including Claude, GPT, and Gemini — through OpenAI- and Anthropic-compatible endpoints, with usage-based pricing and hard per-key spend limits.

How does RouterPlex pricing work?

You pay per token at the vendor's published list price with 0% markup and no fee on top-ups. Funded PAYG has no RouterPlex RPM/TPM or usage-window cap. Optional monthly plans include bonus credits with account-wide 4-hour, weekly, and monthly spend windows.

If the markup is 0%, how does RouterPlex make money?

Two ways: optional monthly plans bundle predictable spend windows with bonus credits worth more than the plan price, and prepaid balances generate float. Token prices stay at vendor list price — we don't add a usage markup.

Is RouterPlex compatible with the OpenAI SDK?

Yes. Point OpenAI clients at api.routerplex.com/v1. RouterPlex also supports the Anthropic SDK and /v1/messages format at api.routerplex.com; both formats reach every chat model.

How is RouterPlex different from OpenRouter or LiteLLM?

RouterPlex is a hosted, ready-to-use gateway: one key, vendor list prices with 0% fee on top-ups (OpenRouter charges 5.5% by card), per-key budgets, and a prepaid balance that never goes negative — no proxy to self-host and no lock-in. Read the direct comparison or compare eight OpenRouter alternatives →

§ 07 — Get started

Start routing in
under a minute.

Pay $5 and receive $5 in usable credits. Add a hard budget to every key before your first request.

one key · every model · billed per token