One endpoint, every model
Point your OpenAI-compatible tool at NexoAI and call any of 57 models by name. Change one string to switch from GPT-5 to Claude Opus. That's the whole migration.
model="claude-opus-4-8"
ONE API KEY · EVERY FLAGSHIP MODEL
Flagship AI models. A fraction of the price.
GPT-5, Claude Opus, Gemini 3, Grok, DeepSeek — 57 models behind a single OpenAI-compatible endpoint. Pay only for what you use, in USD, from a wallet you top up. No subscriptions, no lock-in.
Works in Codex, Claude Code, Cursor, and any OpenAI SDK.
LIVE MODEL · NO ACCOUNT
Ask a real model right now.
Open the free gpt-5.4 demo and watch every token arrive live.
gpt-5.4 · demo
Try it live
Powered by the labs you already trust:
THE OLD WAY IS EXPENSIVE AND FRAGMENTED
Five providers. Five bills. Five SDKs. One headache.
Every lab wants its own account, its own key, its own minimum spend. Switching models means rewriting code. Premium models cost premium money — even when you only send a handful of requests.
THE NEXOAI WAY
Pay-as-you-go, in USD
Top up a wallet. We meter each request to the token. Spend $0.002 or $200 — you're charged for exactly what you use, never a flat monthly fee.
One gateway, transparent pricing
A single metered billing layer in front of every provider. Each model shows its real per-token rate up front — so experimentation stays cheap and production stays predictable.
LIVE IN TWO MINUTES
- 1
Sign up — get $5 in API credit instantly, no card required.
- 2
Copy your key — set two environment variables. Done.
- 3
Call any model — GPT-5, Opus, Gemini 3. Watch your wallet meter in real time.
57 MODELS AND COUNTING
The whole frontier, one price list.
Every model shows its real per-million-token price up front — no hidden tiers, no contact sales. Filter by provider, capability, or budget.
OpenAI
gpt-5.4
$0.50
input / 1M
Anthropic
claude-opus-4-8
$1.00
input / 1M
Google
gemini-3-pro-preview
$0.40
input / 1M
xAI
grok-4.5
$0.40
input / 1M
DeepSeek
deepseek-v4-flash
$0.02
input / 1M
Alibaba
qwen3-coder-next
$0.02
input / 1M
NO PLANS. NO SURPRISES.
You hold the wallet. You set the pace.
Add credit whenever you want. Every model is billed at a transparent USD rate per million tokens. Set per-key spend caps so a runaway script can never drain your balance.
Start with $5 free- Transparent per-model USD pricing
- Hard per-key budget caps
- Real-time usage & logs
- Top up by card or USDT
Ship on the best models today.
Create your account, claim $5 in credit, and make your first call before your coffee's cold.
Create free account