> For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://docs.empiriolabs.ai/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.empiriolabs.ai/_mcp/server. # GLM 5.2 > Reasoning and coding model with a 1M token context, 128K output, adjustable reasoning effort, native web search, and tool calling. ![GLM 5.2](https://media.empiriolabs.ai/model-logos/glm.png) [Z.ai](/providers/zhipu) · Text Generation `POST /v1/chat/completions` Reasoning and coding model with a 1M token context, 128K output, adjustable reasoning effort, native web search, and tool calling. ## At a glance | Field | Value | | ------------------- | --------------------------------------------------------------------------------------------------------------------- | | Model id | `glm-5-2` | | Model release date | 2026-06-16 | | Input modalities | Text | | Output modalities | Text | | Context window | 1M | | Weight precision | - | | Max output tokens | 131,072 | | Region | Singapore | | Features | reasoning, function_calling, web_search | | Native inference | No | | New | No | | Structured output | JSON Mode | | Supported endpoints | `POST /v1/chat/completions`, `POST /v1/responses`, `POST /v1/messages`, `POST /v1beta/models/glm-5-2:generateContent` | | Alternate model ids | `glm-5.2`, `zai/glm-5.2`, `zhipu/glm-5.2` | ## Pricing | Charge | Spec | Rate | | ---------- | ----------------------- | ------- | | Input | per 1M prompt tokens | \$1.40 | | Output | per 1M generated tokens | \$4.40 | | Web search | per request | \$0.033 | ## Example request ```bash curl https://api.empiriolabs.ai/v1/chat/completions \ -H 'Authorization: Bearer $EMPIRIOLABS_API_KEY' \ -H 'Content-Type: application/json' \ -d '{"model": "glm-5-2", "messages": [{"role":"user","content":"Hello"}]}' ``` ## Parameters | Parameter | Type | Required | Default | Description | | ----------------------- | ------- | -------- | ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `max_tokens` | integer | no | `65536` | Maximum number of output tokens to generate. · Range: 1 – 131072 | | `temperature` | number | no | `1` | Controls randomness. Lower values make responses more deterministic. · Range: 0 – 1 | | `top_p` | number | no | `0.95` | Nucleus sampling cutoff. · Range: 0.01 – 1 | | `reasoning_effort` | enum | no | `"max"` | GLM-5.2 reasoning effort. none disables thinking; minimal through max set how hard the model reasons before answering. max is recommended for complex coding. · Allowed: `none`, `minimal`, `low`, `medium`, `high`, `xhigh`, `max` | | `enable_thinking` | boolean | no | true | Allow the model to reason before answering. Turn off for the lowest-latency replies or strict structured output. | | `do_sample` | boolean | no | true | Enable sampling. Turn off for greedy deterministic output (temperature and top_p are ignored). | | `tool_web_search` | boolean | no | false | Enable built-in web search. Adds \$0.033 per request when used. | | `search_recency_filter` | enum | no | `"noLimit"` | Limit web search results to a recency window. · Allowed: `oneDay`, `oneWeek`, `oneMonth`, `oneYear`, `noLimit` | | `count` | integer | no | `10` | Number of web search results to retrieve when web search is enabled. · Range: 1 – 50 | | `search_domain_filter` | string | no | - | Restrict web search to a specific domain. | | `search_prompt` | string | no | - | Optional prompt used to summarize retrieved web search results. | | `search_result` | boolean | no | true | Return web search result metadata in the response when web search is enabled. | | `tool_stream` | boolean | no | false | Stream function-call arguments incrementally when streaming. | | `tools` | array | no | `[]` | OpenAI-compatible function calling tool definitions. | | `tool_choice` | object | no | - | OpenAI-compatible tool choice control. | | `stop` | array | no | - | Optional stop sequences (up to 4). | | `response_format` | enum | no | - | Return the output as a valid JSON object (JSON mode). Describe the fields you want in your prompt. | ## Variants ### `:variant1` | Field | Value | | ------------------- | ------------------------------------------------------------------------------------------------------------------------------ | | Model id | `glm-5-2:variant1` | | Model release date | 2026-06-16 | | Region | Germany | | Context window | 1M | | Weight precision | - | | Max output tokens | 131,072 | | Features | reasoning, function_calling, cache, web_search | | Native inference | No | | Structured output | JSON Schema | | Supported endpoints | `POST /v1/chat/completions`, `POST /v1/responses`, `POST /v1/messages`, `POST /v1beta/models/glm-5-2:variant1:generateContent` | **Pricing** | Charge | Spec | Rate | | ------------------- | -------------------------- | ------------------ | | Input | per 1M prompt tokens | ~~\$1.40~~ \$1.10 | | Output | per 1M generated tokens | ~~\$4.40~~ \$3.851 | | Implicit cache read | per 1M cached input tokens | \$0.275 | | Web Search (Linkup) | per call when invoked | \$0.013 | **Parameters** | Parameter | Type | Required | Default | Description | | -------------------- | ------- | -------- | ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `temperature` | number | no | `0.7` | Sampling temperature. 0 = deterministic, 2 = maximum randomness. · Range: 0 – 2 | | `top_p` | number | no | `0.9` | Nucleus sampling probability mass. Lower = more focused. · Range: 0 – 1 | | `max_tokens` | number | no | - | Maximum output tokens. When omitted, the model's own default applies. · Range: 1 – 131072 | | `stop` | string | no | - | Up to 4 strings where the model will stop generating further tokens. | | `enable_thinking` | boolean | no | true | Enable step-by-step reasoning before answering. | | `reasoning_effort` | enum | no | `"medium"` | Reasoning effort level. none disables thinking. low, medium, high, and max set bounded thinking budgets sized to the selected model. · Allowed: `none`, `low`, `medium`, `high`, `max` | | `thinking_budget` | number | no | `32768` | Maximum tokens reserved for reasoning when thinking is enabled. · Range: 1 – 131072 | | `response_format` | enum | no | - | Constrain the output to JSON. Use JSON mode for any valid JSON object, or JSON schema to force output that matches a schema you provide. | | `web_search_linkup` | boolean | no | false | Optional web search powered by Linkup. When enabled, recent web sources are retrieved using your latest user message as the query and provided to the model as additional context. Adds \$0.013 per call when invoked on top of the model's normal token cost. Disabled by default. | | `disable_formatting` | boolean | no | false | Return the answer without the Sources list that web search adds. | ### `:variant2` | Field | Value | | ------------------- | ------------------------------------------------------------------------------------------------------------------------------ | | Model id | `glm-5-2:variant2` | | Model release date | 2026-06-16 | | Region | United States | | Context window | 1M | | Weight precision | - | | Max output tokens | 131,072 | | Features | reasoning, function_calling, structured_output, web_search | | Native inference | No | | Structured output | JSON Schema | | Supported endpoints | `POST /v1/chat/completions`, `POST /v1/responses`, `POST /v1/messages`, `POST /v1beta/models/glm-5-2:variant2:generateContent` | **Pricing** | Charge | Spec | Rate | | ------------------- | ----------------------- | ------- | | Input | per 1M prompt tokens | \$1.40 | | Output | per 1M generated tokens | \$4.40 | | Web Search (Linkup) | per call when invoked | \$0.013 | **Parameters** | Parameter | Type | Required | Default | Description | | -------------------- | ------- | -------- | ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | `temperature` | number | no | `0.7` | Sampling temperature. 0 = deterministic, 2 = maximum randomness. · Range: 0 – 2 | | `top_p` | number | no | `0.9` | Nucleus sampling probability mass. Lower = more focused. · Range: 0 – 1 | | `max_tokens` | number | no | - | Maximum output tokens. When omitted, the model's own default applies. · Range: 1 – 131072 | | `stop` | string | no | - | Up to 4 strings where the model will stop generating further tokens. | | `enable_thinking` | boolean | no | true | Enable step-by-step reasoning before answering. | | `reasoning_effort` | enum | no | `"medium"` | Reasoning effort level. none disables thinking. low, medium, high, and max set bounded thinking budgets sized to the selected model. · Allowed: `none`, `low`, `medium`, `high`, `max` | | `thinking_budget` | number | no | `32768` | Maximum tokens reserved for reasoning when thinking is enabled. · Range: 1 – 131072 | | `response_format` | enum | no | - | Constrain the output to JSON. Use JSON mode for any valid JSON object, or JSON schema to force output that matches a schema you provide. | | `web_search_linkup` | boolean | no | false | Optional web search powered by Linkup. When enabled, recent web sources are retrieved using your latest user message as the query and provided to the model as additional context. Adds \$0.013 per call when invoked on top of the model's normal token cost. Disabled by default. | | `disable_formatting` | boolean | no | false | Return the answer without the Sources list that web search adds. | --- *Machine-readable schema:* `GET https://api.empiriolabs.ai/v1/models/glm-5-2`.