Providers
Discover top AI model providers offering free API tiers, developer credits, and instant key access.
Vultr
Vultr 是全球顶尖的独立云基础设施服务商，提供高性能 Cloud GPU 与原生兼容 OpenAI 接口标准的 Serverless Inference 无服务器推理平台。新用户通过专属推荐可获 $300 试用额度（30天有效），支持免部署零门槛直调 DeepSeek V4.1 Flash、Qwen 3.8 等前沿大模型。
AMD Radeon Cloud
AMD 官方面向开发者推出的 Radeon Cloud Token Factory 算力平台，提供开箱即用的免配置 AI 模型 API（涵盖 DeepSeek V4 Flash 1M、Qwen 3.8 Flash、MiniCPM 等），原生兼容 OpenAI 与 Anthropic 双协议。
NVIDIA NIM
NVIDIA NIM (Inference Microservices) provides optimized cloud and self-hosted API endpoints for enterprise and open-source models with 1,000 free inference credits on registration.
Zhipu AI
智谱 AI 开放平台（BigModel），提供 GLM-5.3-Flash、GLM-4 等全系列前沿大模型与 GLM Coding Plan 开发者订阅。
Empero
Empero is an independent AI research lab based in Germany, dedicated to advancing open-weights models. It provides a 100% free, OpenAI-compatible community endpoint for models like GLM-5.3-Flash with no registration or API key required.
GMI Cloud
GMI Cloud 是专为高性能 AI 与 GPU 算力打造的云服务平台。提供 MiniMax M3、Speech 2.8 与 Music 3.0 等核心旗舰模型的 0 元直接 API 调用，免绑卡、免预充值。
OpenCode Go
OpenCode Go 是专为 Coding Agent 和高频开发者打造的超高性价比订阅计划（Coding Plan）。首月仅 $5（续费 $10/月），提供每月 $60 基础额度池、Hy3 独享 $480/月 算力、GPT-5.6 Sol 5 折以及 Muse Spark 1.2 Contributor 近乎无限额度，量大管饱，可直接生成 API Key 供 Cursor、Claude Code、Aider 等各种工具调用。
DeepSeek
DeepSeek 官方开放平台，提供业内领先的高性价比大模型与代码推理 API，原生支持 OpenAI 接口协议与超低成本 Context Caching。
Higgsfield
Higgsfield 是 BytePlus 官方合作的一站式 AI 视频与图像生成平台，提供 Seedance、Kling 等 100+ 生成模型。
OpenCode Zen
OpenCode Zen 是专为开发者与 Coding Agent 打造的 Pay-as-you-go AI 网关。账户完成首次充值激活后，即可免费调用包括 Meta Muse Spark 1.2、Nemotron 3 Ultra、DeepSeek V4 Flash 等多款顶尖限时免费模型。
Fish Audio
Fish Audio provides multilingual text-to-speech and reusable voice cloning APIs. S2.1 Pro supports 83 languages, automatic language detection, and natural-language emotion cues. Create an account: https://fish.audio/?aff=QNLX47TF37QU6
GitHub Models
GitHub Models offers free, rate-limited API access to selected OpenAI, DeepSeek, and open models through a GitHub token, with no separate provider account needed.
Google AI Studio
Google AI Studio provides free Gemini API access with generous free-tier rate limits, strong multimodal support, and browser-based key creation for quick prototyping.
Cloudflare Workers AI
Cloudflare's serverless GPU-powered inference platform, offering a high daily free tier for various open-source models.
OpenRouter
A unified API for many LLMs. They offer several models completely for free.
Vercel AI Gateway
Vercel AI Gateway acts as a proxy to various AI providers. It offers a generous $5 monthly credit for accessing premium models without bringing your own key (BYOK).
Xiaomi
Xiaomi Mimo platform offering robust AI models and currently featuring free TTS capabilities.