Claude / GPT / Gemini

Stable AI API Access for China

One simple API entry for developers and AI-native teams. Get stable Claude / GPT calls without account, payment, or console friction.

GPT-4.1 is available for production calls. GPT-5.5 access is available by manual activation. Model availability depends on upstream channel configuration.

Get API Key View Docs

/v1/chat/completions

$ curl api.claude5plus.com/v1

{

"model": "claude-sonnet-4",

"status": "stable",

"latency_ms": 842,

"balance": "$126.40",

"content": "Ready."

}

Supported Models

One gateway. Production-ready model stacks.

Start with stable model stacks.
Layer runtime intelligence on top.

Claude Family

Primary

Claude Sonnet 4.6 for daily execution. Claude Opus 4.8 for premium reasoning and long-context workflows.

Available by manual activation when upstream channels are configured.

Best workloads

coding/*reasoning/*agent/orchestrate

OpenAI Family

Latest

GPT-4.1 for stable production calls. GPT-5.5 is available by manual activation.

Model availability depends on upstream channel configuration.

Best workloads

app/*workflow/*tools/*

Gemini Family

Multimodal

Gemini 2.5 Flash and Gemini 2.5 Pro for UI, image, and document workflows.

Optimized for visual and high-context runtime tasks.

Best workloads

multimodal/*ui/*image/*

China Model Stack

Cost-efficient

DeepSeek, Qwen, Kimi, GLM, MiniMax and more.

High-throughput workloads with optimized token efficiency.

Best workloads

content/*summary/*analysis/logs

Why Claude5Plus

Less dashboard. More shipping.

3 minutes to first call

Built for China teams

No foreign card setup, no account warmup, no provider console maze.

Simple balance model

Manual top-up for V0: USDT, WeChat, Alipay, then pay as you go.

Pricing

Start with $10. Pay by usage.

Manual top-up: WeChat / Alipay / USDT.

Starter top-up

$10

Minimum balance, pay as you go

GPT-4.1

Default OpenAI production model

Claude Sonnet 4.6

1.5x

Default Claude execution model

Premium Models

From 3x

GPT-5.5 and Opus 4.8 by manual activation

Quick Start

OpenAI-like request shape.

GPT-4.1, Claude Sonnet 4.6, Gemini 2.5 Flash, and China stack models are launch defaults. GPT-5.5 and Opus 4.8 are enabled manually after upstream channels are configured.

Base URL

https://api.claude5plus.com/v1

curl https://api.claude5plus.com/v1/chat/completions \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4.6",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

Is this an API gateway or proxy?

For users, no. Claude5Plus is positioned as one stable API entry for Claude and GPT calls.

How does billing work in V0?

Manual balance top-up by USDT, WeChat, or Alipay. The admin dashboard adjusts user balance.

Do I need to understand model parameters?

No. V0 keeps the request surface close to familiar chat completions and hides provider complexity.

What is the validation goal?

Whether China-based developers and AI teams will pay for stable Claude access.