OpenRouter is the international multi-model gateway with 311+ models, while API2D is a CNY-native veteran focused on the Chinese market. This comparison breaks down every difference that matters for a real deployment decision.
The international multi-model gateway. Full model coverage with the newest releases, but charges official price + markup …
One of the oldest and most established relay stations. Known for 100% uptime and comprehensive model coverage including …
Choose API2D if your finance team requires CNY invoices, WeChat Pay or Alipay. Choose OpenRouter if you can bill in USD and want the widest model coverage at upstream-parity prices.
API2D averages 241ms p50 from Shenzhen; OpenRouter averages 218ms when routed through a Hong Kong egress and 412ms direct.
Yes — both expose an OpenAI-compatible API surface. Switching is a one-line change to the base_url.