LLM API 4

Enterprise AI platform with LLMs, multimodal APIs, and deployment tools.
Zhipu AI Open Platform is an enterprise AI platform from Beijing Zhipu Huazhang Technology Co., Ltd. It provides access to large language models, multimodal vision models, speech models, search tools, knowledge bases, agents, fine-tuning, private deployment, and API services for industry and enterprise use.

Developer-first API platform for building, deploying, and scaling AI and ML models.
Modelslab is a developer-first API platform that simplifies building, deploying, and scaling AI and machine learning models. It offers a range of APIs for image editing, text to image, text to video, text to speech, voice cloning, LLM API, text to 3D, and image to 3D. Modelslab provides seamless integrations, efficient workflows, and scalable solutions for ML projects, enabling developers to build next-generation AI products without worrying about GPUs.
Managed AI infrastructure for open models, agents, and scalable private deployments
FlexAI is an agent-native AI infrastructure platform that provides managed inference for more than 20 open-weight models through one OpenAI-compatible API key. It supports text, vision, code, reasoning, embeddings, speech, audio, and image-generation workloads. Users can start with serverless model access, then scale to dedicated GPU endpoints, fine-tuning, and private AI cloud deployments across VPC, on-premises, or air-gapped environments. FlexAI also offers agent tools such as tool calling, streaming, structured outputs, approvals, governance, and audit trails.

Shared GPU infrastructure and community for running open AI models through an OpenAI-compatible API.
NaN is a paid community and shared GPU inference platform for builders who want to run open AI models without managing their own infrastructure. It provides an OpenAI-compatible API, shared dedicated GPUs, EU-based processing, zero prompt and response logging, and access to language, embedding, reranking, text-to-speech, and speech-to-text models. Members can use the shared inference cluster, participate in a private Discord community, attend events, and vote on future models. The platform also offers a premium GLM 5.2 tier with published token allowances.