测试和使用大量大型语言模型（法学硕士所有信息均可通过单一位置和界面获取。他们的LLM列表易于排序，并提供价格、类型、语言和许多其他选择条件。
无需繁琐的注册流程，即可非常方便地测试最新的LLM热门项目或鲜为人知的宝藏项目。
价格取决于所选的 LLM 型号，其中一些是免费的，但必须注册 OpenRouter，注册后每天可免费访问 OpenRouter 200 次，外加 LLM 的最终费用。
笔记： 管理区域的设置允许您选择是否允许 LLM 提供商使用您的使用情况来训练其模型（或者至少 OpenRouter 会尽力确保 LLM 尊重这一设置）。
| OpenRouter | LiteLLM | Amazon Bedrock | Azure OpenAI in Microsoft Foundry Models |
|---|---|---|---|
| 服务类型： OpenRouter is a hosted gateway. One endpoint, OpenAI SDK compatible through the base URL, gives access to hundreds of models and handles fallbacks between providers. | 服务类型： LiteLLM is an open source project. It is a Python SDK with a Router for retries and fallbacks, and a self-hosted proxy that speaks the OpenAI format to more than 100 providers. | 服务类型： Bedrock is Amazon's managed platform for generative AI applications and agents. It sits inside an AWS account and adds guardrails, evaluation tools and distillation. | 服务类型： Microsoft now documents these as Foundry Models sold by Azure, covering OpenAI GPT, o-series, gpt-oss, image, audio and embedding models. They are billed through an Azure subscription and covered by Azure SLAs. |
| Model coverage: The Standard plan lists 500+ models from 80+ providers, plus a free tier with 25+ free models. Many models from different labs can be tried without separate registrations. | Model coverage: Coverage depends on the keys you hold. LiteLLM routes to providers including OpenAI, Anthropic, Vertex AI and Bedrock, but does not host models. | Model coverage: Bedrock offers hundreds of foundation models from major AI companies. The overview page does not name the providers. | Model coverage: Mainly OpenAI-family models, with open-weight gpt-oss and a separate catalogue of partner and community models. Availability varies by region and quota tier. |
| 数据处理： Prompts and responses are not stored unless you opt in. You can block routing to providers that may train on your data, and filter providers by data policy. EU in-region routing is reserved for enterprise customers. | 数据处理： Self-hosting keeps the gateway under your control. What each upstream provider keeps is set by that provider and your own key. | 数据处理： The vendor states Bedrock never stores or uses your data to train models. Listed compliance includes ISO, SOC, GDPR, FedRAMP High and HIPAA eligibility. | 数据处理： Data stays within the customer's Azure tenancy and its compliance terms. Check the region availability list before choosing a deployment. |
| 成本模型： Pay-as-you-go. Platform fees are listed at 5.5 percent (Standard) and 8 percent (Business), and the free plan allows 50 requests per day. Model prices come on top. | 成本模型： The software is MIT licensed with no per-call fee. Enterprise features such as SSO and audit logs are offered separately, and you pay the providers directly. | 成本模型： Billed through AWS, with a separate pricing page. Batch processing, prompt caching and routing are offered to cut cost. | 成本模型： Billed through Azure per token, with pricing that depends on input size categories and deployment type. |
| 何时选择它： Choose it to compare many models quickly with one account, or to prototype without contracting each provider. | 何时选择它： Choose it when a team wants its own gateway with budgets, virtual keys and cost tracking across providers. | 何时选择它： Choose it when workloads already run on AWS and need its governance and compliance controls. | 何时选择它： Choose it for Microsoft-centred organisations that need OpenAI models under Azure contracts and SLAs. |
涵盖的主题： OpenRouter、统一接口、大型语言模型 (LLM)、模型选择、价格比较、语言选择、用户注册、访问限制、管理员设置、模型训练、数据隐私、API 集成、用户体验、测试环境、机器学习、云计算、ISO/IEC 27001、ISO/IEC 25010、ISO/IEC 30170、IEEE 80211 和 ISO 9241。
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