AI Recommendation
Should you use GLM-5.1?
GLM-5.1 is listed for chat workloads and supports a 200K context window.
Use it when ModelScope's free tier is enough for evaluation, demos, or light production traffic.
GLM-5.1 Free API on ModelScope
Free API Verified Catalog metadata matched Reasoning models.dev metadata
Strong GLM coding model for agentic engineering, terminals, and repository generation
Free APIModelScope nativeReasoningTool callingJSON modeReasoning
Context window 200K
Max output 131K
API format ModelScope native
Status Online
Best for
- Chat
Strengths & Weaknesses
Strengths
- Long context window
- Reasoning mode listed
- Tool calling support
- Structured JSON output
Watch outs
- Vision support is not listed
Availability
GLM-5.1 availability by provider
We only found this GLM-5.1 listing on ModelScope in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | GLM-5.1 | Free tier | 200K | Native | Varies |
Compare
GLM-5.1 alternatives to consider
| Model | Provider | Context | Access |
|---|---|---|---|
| Qwen/Qwen3.5-35B-A3B | ModelScope | 131K | Free tier |
| Qwen/Qwen3.5-27B | ModelScope | 131K | Free tier |
| Qwen/Qwen-Image | ModelScope | 131K | Check provider |
| deepseek-ai/DeepSeek-V3.2 | ModelScope | 8K | Free tier |
| deepseek-ai/DeepSeek-V4-Flash | ModelScope | 8K | Free tier |
Typical Use Cases
GLM-5.1 use cases
Chat
GLM-5.1 is tagged for chat in this catalog.
FAQ
GLM-5.1 free API FAQ
Is GLM-5.1 free to use?
GLM-5.1 is listed with free API access on ModelScope, subject to the provider's quota and account policy.
What is the GLM-5.1 model ID?
The model ID shown in this catalog is ZhipuAI/GLM-5.
What context window does GLM-5.1 support?
The listed context window is 200K tokens with up to 131K output tokens.
More about GLM-5.1
Free GLM-5.1 API.
For API keys, setup steps, and provider-level limits, see the ModelScope provider page.