GLM 4.6
Z.ai GLM 4.6 — pricing, 203k context window, API cost calculator and alternatives.
By Z.ai
Specs
- Provider
- Z.ai
- Slug
- z-ai/glm-4-6
- Capabilities
- tools, json_mode
Pricing freshness
- Tier
- standard
- Currency
- USD
- As of
- 2026-05-14 00:17 UTC
Pricing history
2 data points · since 2026-05-08Quickstart — call GLM 4.6 from your app
curl https://openrouter.ai/api/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-d '{
"model": "z-ai/glm-4-6",
"messages": [{"role": "user", "content": "Hello!"}]
}'Official docs: https://openrouter.ai/docs
# pip install openai
from openai import OpenAI
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key=os.environ["OPENROUTER_API_KEY"],
)
resp = client.chat.completions.create(
model="z-ai/glm-4-6",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Official docs: https://openrouter.ai/docs
// npm install openai
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://openrouter.ai/api/v1",
apiKey: process.env.OPENROUTER_API_KEY,
});
const resp = await client.chat.completions.create({
model: "z-ai/glm-4-6",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(resp.choices[0].message.content);Official docs: https://openrouter.ai/docs
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Frequently asked questions
What is GLM 4.6?
GLM 4.6 is a large language model API from Z.ai with a 203k-token context window. It costs $0.43 per 1M input tokens and $1.74 per 1M output tokens.
How much does GLM 4.6 cost?
GLM 4.6 is priced at $0.43 per 1M input tokens and $1.74 per 1M output tokens via the Z.ai API. A 50/50 input/output workload of 1M total tokens costs about $1.085.
What is the context window of GLM 4.6?
GLM 4.6 supports up to 203k tokens of context per request — roughly 406 pages of English text or 25344 lines of code at a typical density.
Does GLM 4.6 support vision, tool use, or JSON mode?
GLM 4.6 supports tool/function calling and structured JSON mode. It does not support image input (vision).
Who makes GLM 4.6?
GLM 4.6 is built and operated by Z.ai. Pricing, context window, and capabilities on this page are refreshed nightly from Z.ai's public catalog.
Can I self-host GLM 4.6?
GLM 4.6 is API-only — its weights are not publicly distributed by Z.ai, so it cannot be self-hosted today.