 Free Models Router |  GLM 5.1 | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenRouter | Z.AI |
Input Context Window Maximum input tokens this model can process at once | 200K tokens | 202.8K tokens |
Output Token Limit Maximum output tokens this model can generate at once | Not specified tokens | 65.5K tokens |
Release Date When this model first became publicly available | February 1, 2026 4 months ago February 1st, 2026 | April 7, 2026 2 months ago April 7th, 2026 |
Free Models Router | GLM 5.1 | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image | 📝Text |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Router | Other |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation |
Open Source Model availability | Proprietary | Available on HuggingFace → |
| Free Models Router | GLM 5.1 | |
|---|---|---|
Input Token Cost Cost per million input tokens | Not specified | $0.98 per million tokens |
Output Token Cost Cost per million outut tokens | Not specified | $3.08 per million tokens |
| Free Models Router | GLM 5.1 | |
|---|---|---|
MMLU Measures knowledge across 57 subjects like law, math, history, and science | Benchmark not available. | Benchmark not available. |
MMMU Measures understanding of combined text and images across various domains | Benchmark not available. | Benchmark not available. |
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations | Benchmark not available. | Benchmark not available. |
Free Models Router by OpenRouter understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 200K token context window. Released February 1st, 2026.GLM 5.1 by Z.AI can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 202.8K token context window. Reasonably priced at $0.98/M input and $3.08/M output tokens. Released April 7th, 2026.Compare your models with top performers across different categories
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