BigModel records 5,700,686 monthly visits with -17% month-over-month growth and Freemium pricing. Respan records 91,503 monthly visits with -14.5% growth and Freemium pricing.
Zhipu AI's open platform for GLM large models, multimodal APIs, and agent building
Open-source AI gateway with observability and evals built in
| Dimension / Metric | | |
|---|---|---|
| Official Domain | bigmodel.cn | respan.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 5.7M (5,700,686) | 91.5K (91,503) |
| MoM Traffic Delta | -1.17M (-17%) | -15.53K (-14.5%) |
| Primary Market & Share | 🇨🇳 China (85.8%) | 🇺🇸 United States (28.8%) |
| Direct Visits / mo | 4.23M | 23.12K |
| User Rating | 4.6 | 4.5 |
| Supported Platforms | Website | Website |
Zhipu AI's open platform for GLM large models, multimodal APIs, and agent building
Unified access to GLM large language models plus vision, OCR, speech, image, and video endpoints through one account.
Build tool-using agents and expose or consume MCP services to connect models to external systems.
Create managed knowledge bases and retrieval pipelines so models can answer with your own documents.
Tune models on your data and prototype prompts interactively in the browser before shipping.
Open-source AI gateway with observability and evals built in
Route to OpenAI, Anthropic, Google, xAI, DeepSeek, Qwen and many other models through a single API key and one OpenAI-compatible endpoint.
Keep your existing OpenAI, Anthropic, LangChain or Vercel AI SDK code and change only the base URL.
Automatic fallbacks, retries and load balancing across providers and API keys keep requests answering when a single provider rate-limits or fails.
Every call is logged and traceable, with evaluation tooling and a CLI so you can query logs and traces from your terminal.
Free / Open-sourceDelivers exceptional open-weight reasoning performance at very low cost, but lacks BigModel's broad enterprise multi-modal agent building suite.
Free / Open-sourceDelivers exceptional open-weight reasoning performance at very low cost, but lacks BigModel's broad enterprise multi-modal agent building suite.
Provides industry-leading frontier intelligence and developer ecosystems, but lacks BigModel's specialized GLM architecture and native Chinese language optimizations.
Provides industry-leading frontier intelligence and developer ecosystems, but lacks BigModel's specialized GLM architecture and native Chinese language optimizations.
Offers massive context windows and robust multimodal Gemini APIs, but differs in model architecture and regional enterprise tooling.
Offers massive context windows and robust multimodal Gemini APIs, but differs in model architecture and regional enterprise tooling.
One API key for hundreds of AI models from every major provider
SpecialistOne API for 1,500+ production-ready generative media models
Free / Open-sourceSpecializes in serverless open-source model hosting and dedicated GPU clusters, but provides less native proprietary GLM model integration.
Free / Open-sourceSpecializes in serverless open-source model hosting and dedicated GPU clusters, but provides less native proprietary GLM model integration.
One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control
One OpenAI-compatible gateway for adaptive LLM routing, guardrails, and spend control
Run, fine-tune, and deploy machine learning models with one line of code
Run, fine-tune, and deploy machine learning models with one line of code
Delivers ultra-fast inference speeds for open-weight models, but focuses less on proprietary enterprise agent building toolkits than BigModel.
Free / Open-sourceOne open-source AI gateway for 100+ LLM providers
Free / Open-sourceOffers highly cost-effective serverless inference for open models, but lacks BigModel's integrated enterprise knowledge base and agent tools.
One API for fast, cost-predictable inference on LLMs and multimodal models
One API for fast, cost-predictable inference on LLMs and multimodal models
