GLM 5.3 is free on 6 providers today. Permanent free tiers come first, then one-time trials.
| Provider | API model ID | Context | Free limits | Sign-up |
|---|---|---|---|---|
| Cloudflare Workers AI | @cf/zai-org/glm-5.3 |
1M | Varies by model | No card |
| Fireworks AI Trial | accounts/fireworks/models/glm-5p3 |
1M | 10 RPM (no payment method) / up to 6,000 RPM (with card + credits) | Free account |
| Novita AI Trial | zai-org/glm-5.3 |
1M | 60 RPM | Free account |
| Scaleway Generative APIs Trial | glm-5.3 |
256K | Organization quota in tokens/minute (see console) | Free account |
| Friendli AI Trial | zai-org/GLM-5.3 |
1M | Tier 0: adaptive (60 RPM from Tier 1) | Free account |
| Sail Research Trial | zai-org/GLM-5.3 |
— | Not published for Free plan (most relaxed on flex window) | Card required |
Free lists change often. Each provider page shows its full limits and code examples, and every change is logged in the changelog. Want to call it from Claude Code or Cursor? Use the setup generator.