XiuRouter

XiuRouter is a multi-model API access service that focuses on calling multiple models such as Claude and GPT through a single API, and supports pay-as-you-go billing.

Purpose XiuRouter is intended for use cases that require access to multiple large models through a unified interface, including coding tool integration, agent development, multi-model application building, and OpenAI-compatible migration. The official page provides entry points for finding next steps by use case, API format, or question.

Main capabilities

• Unified multi-model access: access models such as Claude and GPT through a single API.
• Price comparison and cost estimation: provides model price comparisons priced per 1 million tokens, allows entering a monthly input budget, and estimates XiuRouter's input cost based on provider reference rates. The official example shows monthly savings of $770.00, and notes that this estimate includes only default input costs, while output, cache, and tool fees are billed separately, and the savings rate varies by model and price type.
• Model and rate display: lists popular models and their savings percentages relative to providers, for example claude-opus-5-5 saves 77%, claude-sonnet-5-5 saves 77%, claude-fable-5-1 saves 77%, gpt-6.1-sol saves 93%, gpt-6-astra saves 91.3%, gpt-6-sol saves 93%; claude-haiku-5-5 and gpt-6-luna are unavailable in the current tier.
• Usage statistics: shows the proportion of the most commonly used models in the last 7 days, for example claude-opus-5-5 accounts for 57.8%, claude-fable-5-1 accounts for 10.6%, and claude-sonnet-5 accounts for 7.3%.
• Testing and monitoring: provides Playground for testing requests and viewing responses, Usage for viewing requests, token usage, and costs by API Key, and Rankings for comparing the request share of popular models.
• Native API format support: you can select the protocol sent by the client or SDK, and set the matching Base URL, API Key, and model ID. The officially recommended connection address for OpenAI SDK, Codex, agents, and new applications is https://router-api.xiu.ai/v1，授权头为 Authorization: Bearer $XIUROUTER_API_KEY.

How to use

1. Top up: choose an amount and payment method.
2. Convert to router credit: convert wallet balance into credit for API requests.
3. Create an API Key: set the models that this Key can call.
4. Send a request: use the matching Base URL, API Key, and model ID.
5. Check usage: inspect models, tokens, and costs. The full documentation address is docs.xiu.ai/router/quickstart.

Applicable scenarios The officially listed scenarios include agent development, OpenAI-compatible migration, multi-model applications, and usage reconciliation. It is also suitable for users who need to configure model access for coding tools such as Codex and Claude Code.

Limitations and notes

• Prices and savings percentages are reference information displayed on the official page; actual rates, tiers, and modes are subject to the current table on the pricing page.
• Cost estimates include only default input costs, while output, cache, and tool fees are billed separately.
• Some models are unavailable in specific tiers.
• Information such as specific payment methods, supported regions, and service level agreements is not yet provided in the materials.