What is Z.ai: GLM-4.6's context window?

Z.ai: GLM-4.6 supports a context window of 200,000 tokens, allowing you to process large documents and maintain long conversations.

How to use Z.ai: GLM-4.6 API via Ofox?

Simply set your base URL to https://api.ofox.run/v1 and use your Ofox API key. The API is OpenAI-compatible — just change the base URL and API key in your existing code.

Z.ai: GLM-4.6

Name: Z.ai: GLM-4.6
Brand: z-ai
Price: 0.39999999999999997 USD
Availability: InStock
Rating: 5 (1 reviews)

Chat

z-ai/glm-4.6

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GLM-4.6 is Z.ai's GLM-series chat model released on 2025-09-30, offering strong instruction following and an excellent balance of performance and cost, with particular strength on Chinese-language tasks. It supports reasoning, function calling (tool use), prompt caching, and web search. Context: 200K tokens, output: 128K. Pricing is $0.40/M input tokens and $1.90/M output, with cached input reads at $0.11/M. Available via OpenAI and Anthropic protocols.

Context Window

200K

Max Output Tokens

128K

Released

2025-09-30

Capabilities

Function CallingReasoningPrompt CachingWeb Search

Available Providers

Zhipu

Supported Protocols

openaianthropic

Providers

Zhipu

Input Tokens

$0.4/M

Output Tokens

$1.9/M

Cache Read

$0.11/M

Web Search

$0.01/R

Protocols

openai/v1/chat/completions

anthropic

Code Examples

from openai import OpenAI

client = OpenAI(
    base_url="https://api.ofox.run/v1",
    api_key="YOUR_OFOX_API_KEY",
)

response = client.chat.completions.create(
    model="z-ai/glm-4.6",
    messages=[
        {"role": "user", "content": "Hello!"}
    ],
)

print(response.choices[0].message.content)

Benchmarks

LMArena ↗Evaluated as glm-4.6

Z.ai: GLM-4.6 scores 1425 in the Overall category of the LMArena text leaderboard (style control), ranking #86 of 374 models based on 35,623 human preference votes (updated 2026-07-12).

Benchmark scores for glm-4.6 on LMArena
Category	Arena Score	95% CI	Rank	Votes
Overall	1425	1421–1429	#86 of 374	35,623
Hard Prompts	1442	1437–1447	#93 of 374	19,079
Coding	1459	1452–1466	#107 of 369	7,478
Math	1421	1408–1433	#91 of 362	2,107
Creative Writing	1402	1394–1411	#77 of 372	5,087
Instruction Following	1415	1409–1422	#89 of 374	10,002
Chinese	1482	1468–1497	#62 of 344	1,649

Source: LMArena · CC BY 4.0 · Updated 2026-07-12 · Methodology ↗ · Ranks compare models within each category of the LMArena text leaderboard (style control). Scores come from third-party human preference evaluations, not from OFOX.