AICloud Feiyun Review: Pricing & Comparison

AICloud: the relay that gives away 50 calls a day

“50 free Sonnet 4.6 calls, every day” — that’s how AICloud (aicloudapi.com) lowers the bar for new users to give it a try. It’s not a one-time signup credit, but a daily allotment, which makes it more useful for sustained testing than a one-off trial.

AICloud positions itself as a mainland-direct-connect relay for Claude, built around low-price access and a daily free quota — well suited to everyday dev/test work and small-scale projects.

What the daily free quota is actually worth

50 free Sonnet 4.6 calls a day is enough for scenarios like:

• Validating API integration for a new feature (typically 10-20 test calls)
• Routine day-to-day code review (a reasonable message volume)
• Exploring how Claude performs on a new task

Once you’re past the daily free quota, AICloud’s billing kicks in: Sonnet 4.6 runs about ¥4.5 per million input tokens and ¥22.5 per million output tokens — a mid-range price point among domestic relays.

A note on the risk of reverse-proxied models

AICloud supports “reverse-proxied models,” which are typically priced well below the official channel but come with clear risks:

• Poor stability: reverse-engineered interfaces can break at any time if the upstream platform changes
• Compliance risk: violates OpenAI/Anthropic’s terms of service
• No SLA guarantee: no compensation mechanism if something goes down

Recommendation: stick to official API channels in production, and only use reverse-proxied models for low-stakes personal testing.

Integration setup

from anthropic import Anthropic

client = Anthropic(
    api_key="your AICloud API key",
    base_url="https://api.aicloudapi.com"  # check the official site for the current endpoint
)

message = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Help me write a Python web-scraping example"}]
)
print(message.content[0].text)

Who it fits

AICloud is best suited to: individual developers doing everyday dev/test work, beginners learning the Claude API, and lightweight projects looking for low-cost access.

For high-frequency production use, it’s worth comparing against Laozhang API’s official-parity pricing or AiHubMix’s permanent free testing tier.

Information verified 2026-07-04. The daily free call count and pricing follow AICloud’s live official announcements.

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