Best free Z.ai Open Platform (free GLM Flash API) alternatives

Looking for a free alternative to Z.ai Open Platform (free GLM Flash API)? Here are 9 model hosting & inference apis worth trying — 9 with a free tier. Z.ai Open Platform (free GLM Flash API) itself is free tier + paid.

ToolZ.ai Open Platform (free GLM Flash API) (you searched)Hugging FaceGroqOpenRouter
Pricingfreemiumfreemiumfreemiumfreemium
Best forGLM-4.7-Flash and GLM-4.5-Flash text models listed as free for input and output on the public APIThe hub for open models and datasetsUltra-fast inference on custom LPUsOne API for 400+ models across providers
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Z.ai Open Platform (free GLM Flash API) alternatives — straight answers

What is the best free alternative to Z.ai Open Platform (free GLM Flash API)?

Hugging Face is the closest free alternative to Z.ai Open Platform (free GLM Flash API): same Model Hosting & Inference APIs sub-category, and it is free tier + paid. The hub for open models and datasets

Are there free Z.ai Open Platform (free GLM Flash API) alternatives?

Yes — 9 of the 9 alternatives listed here are free or freemium: Hugging Face, Groq, OpenRouter, Fireworks AI, Novita AI. None of them are paid-only.

Is Z.ai Open Platform (free GLM Flash API) free?

Z.ai Open Platform (free GLM Flash API) is free tier + paid. There is a free tier you can work in, with paid plans above it.

How were these Z.ai Open Platform (free GLM Flash API) alternatives chosen?

They are the other tools in Model Hosting & Inference APIs, then the rest of AI Models & Local Execution, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.

All Z.ai Open Platform (free GLM Flash API) alternatives

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Hugging Face

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — The hub for open models and datasets.

  • The hub for open models and datasets
  • Spaces to host and demo apps
  • Inference endpoints and providers
  • Free accounts and hosting

Groq

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — Ultra-fast inference on custom LPUs.

  • Ultra-fast inference on custom LPUs
  • Sub-second responses for open models
  • OpenAI-compatible API
  • Generous free tier

OpenRouter

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — One API for 400+ models across providers.

  • One API for 400+ models across providers
  • Automatic fallbacks and price routing
  • Some models free to use
  • Unified billing

Fireworks AI

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — High-performance open-model serving.

  • High-performance open-model serving
  • Fine-tuning and function calling
  • Vision and audio models
  • Free trial credits

Novita AI

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — Single API surface for 200+ LLM/image/video/audio models plus on-demand GPU and bare-metal instances.

  • Single API surface for 200+ LLM/image/video/audio models plus on-demand GPU and bare-metal instances
  • Agent Sandbox for secure agent runtimes alongside model hosting
  • 'Free to start' onboarding credits across model and GPU products

Cloudflare Workers AI

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — 10,000 free 'Neurons' of inference per day on every account, resetting daily.

  • 10,000 free 'Neurons' of inference per day on every account, resetting daily
  • Runs open models (Llama, Mistral, Whisper, etc.) on Cloudflare's global edge network for low-latency serverless inference
  • Bundled with Workers/Pages for building full serverless AI apps without managing GPUs

Baseten

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — Basic plan is pay-as-you-go with free starter credits for new accounts.

  • Basic plan is pay-as-you-go with free starter credits for new accounts
  • Deploys custom/fine-tuned models, not just a fixed model catalog, with per-second GPU billing
  • Hosts current open models (DeepSeek, GPT-OSS, Kimi K3) as ready-to-call APIs alongside custom deployment

Google AI Studio

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — Free-tier API access to Gemini Flash-family models with generous token allowances, no credit card required to start.

  • Free-tier API access to Gemini Flash-family models with generous token allowances, no credit card required to start
  • Browser-based playground for prompt design, multimodal testing, and one-click API key generation
  • Batch API offers 50% cost reduction once on the paid tier

ModelScope

Model Hosting & Inference APIs
freemium

✦ WhyA Z.ai Open Platform (free GLM Flash API) alternative — Alibaba's open model hub with thousands of Qwen, Wan and community models.

  • Alibaba's open model hub with thousands of Qwen, Wan and community models
  • Free inference quota (community reports about 2,000 requests a day, OpenAI-compatible)
  • Free demo spaces (Studios) and notebooks
  • International site at modelscope.ai

Z.ai Open Platform (free GLM Flash API) head-to-head