AI Recommendation
Should you use GLM-5.1?
GLM-5.1 is listed for chat workloads and supports a 1.0M 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 APIOpenAI compatibleReasoningTool callingJSON modeReasoning
API Details
Copy-ready connection details
Base URL
https://api-inference.modelscope.cn/v1 Model ID
ZhipuAI/GLM-5.2 API format OpenAI Chat Completions + OpenAI Responses
Technical Details
GLM-5.1 specifications
Context window 1.0M
Max output 131K
Status Online
Family glm
Released Apr 7, 2026
Last updated Apr 7, 2026
Free listing since Jun 29, 2026
Input text
Output text
Capabilities reasoning, tool calling, structured output, temperature control
Open weights Yes
Weights Hugging Face
External benchmark references
| Benchmark | Score | Metric | Date |
|---|---|---|---|
| Artificial Analysis Coding Agent Index | 52.7 | average pass@1 | Not listed |
| SWE-Atlas Codebase QnA | 73.2 | pass@1 | Not listed |
| SWE-Bench Pro | 19.8 | pass@1 | Not listed |
| Terminal-Bench | 65.1 | pass@1 | Not listed |
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 | 1.0M | Native | Varies |
Compare
GLM-5.1 alternatives to consider
| Model | Provider | Context | Access |
|---|---|---|---|
| Qwen/Qwen3.5-35B-A3B | ModelScope | 131K | Check provider |
| Qwen/Qwen3.5-27B | ModelScope | 131K | Check provider |
| MiniMax-M2.5-highspeed | ModelScope | 205K | Check provider |
| Kimi K2.5 | ModelScope | 262K | Check provider |
| Qwen/Qwen-Image | ModelScope | 131K | Check provider |
Typical Use Cases
GLM-5.1 use cases
Chat
GLM-5.1 is tagged for chat in this catalog and works with OpenAI-compatible client libraries.
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-5.2.
What context window does GLM-5.1 support?
The listed context window is 1.0M 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.