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Z.AI (GLM)
Chinese AI lab behind the GLM series — GLM-5.1 is their latest flagship, competing with GPT-5.4 and Claude Opus 4.6. Known for strong bilingual Chinese-English performance. Rebranded from Zhipu AI to Z.AI.
Visit Z.AI (GLM) →Plans & Pricing
Free (Z.AI Web)
$0- ✓GLM-5.1 via web
- ✓Rate-limited
- ✓CharacterGLM via web
Coding Plan Lite
$10/mo- ✓GLM-5.1 API access
- ✓100M tokens/month
- ✓Basic support
Coding Plan Standard
$20/mo- ✓GLM-5.1 API access
- ✓500M tokens/month
- ✓Priority support
API Pay-Per-Use
From $0.10/1M tokens- ✓GLM-4: $0.10/1M in / $0.30/1M out
- ✓GLM-5: $1.00/1M in / $1.00/1M out
- ✓GLM-4V (vision): $0.10/1M in / $0.30/1M out
- ✓No free tier
Free Tier
Z.AI web: free to use with rate limits. API is pay-per-use (no free tier). Coding Plans from $10/mo.
Models (6)
Compare →| Model | Context | In /1M | Out /1M | Capabilities |
|---|---|---|---|---|
GLM-5.1 (Latest) ChatFunctions | 256K | $1.00 | $1.00 | ChatFunctionsStreaming+2 |
GLM-5 ChatFunctions | 128K | $1.00 | $1.00 | ChatFunctionsStreaming+1 |
GLM-4 Plus ChatFunctions | 128K | $0.50 | $1.50 | ChatFunctionsStreaming |
GLM-4 ChatFunctions | 128K | $0.10 | $0.30 | ChatFunctionsStreaming |
GLM-4V (Vision) ChatVision | 128K | $0.10 | $0.30 | ChatVisionStreaming |
GLM Zero (Reasoner) ReasoningChat | 128K | $0.10 | $0.30 | ReasoningChatStreaming |