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Z.ai · Open weights

GLM 4.6 Turbo

Added Oct 2, 2025Open weights

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Use in the app

Fast variant of GLM 4.6 for general chat, coding, and analysis with improved latency and strong reasoning.

Input
Text
Output
Text
Discovery tier
Open weights

Pricing

USD per 1M tokens
Input
$1.00
Output
$3.00

Reference prices as published by the model provider. API example

Specifications

Context window
204.8K
Max output
131.1K
Average output (7 days)
696 tokens
Longer than 61% of 468 models

Side by side

GLM 4.6 Turbo compared

Specifications, prices, speed and benchmark scores next to each other. Benchmarks below show every compared model too.

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GLM 4.6 TurboZ.aiThis modelGLM 5 TurboZ.aiRemove
ProviderZ.aiZ.ai
Discovery tierOpen weightsOpen weights
AddedOct 2, 2025Mar 15, 2026
Limits
Context window204.8KBest202.8K
Max output131.07K131.07K
Average output696 tokens557 tokens
Pricing, USD per 1M tokens
Input$1.00Best$1.20
Output$3.00Best$4.00
Cache read—$0.24
Performance
Request success (24h)—100.0%
Benchmark indexes
Intelligence Index14.926.6Best
Math Index44.3—
Capabilities
ToolsNoYes
Structured outputNoYes
Reasoning effort——

Public evaluations

Benchmarks

Independent evaluation results, with how each score ranks among the models in the Noumen catalog.

  • GLM 4.6 Turbo
  • GLM 5 Turbo

Intelligence Index

  • GLM 4.6 Turbo14.9
  • GLM 5 Turbo26.6

GLM 4.6 Turbo: Better than 37% of 326 scored models

3.8Catalog models by score55.1

Indexes

  • Math Index

    Composite of the math evaluations

    • GLM 4.6 Turbo: 44.3
    • GLM 5 Turbo: —

Document reasoning

  • AA-LCRv1.1

    Reasoning across long documents

    • GLM 4.6 Turbo: 26.3%
    • GLM 5 Turbo: 71.7%Top

Reasoning and knowledge

  • Humanity’s Last Exam

    Expert-level questions across academic fields

    • GLM 4.6 Turbo: 5.5%
    • GLM 5 Turbo: 27.8%Top

  • GPQA Diamond

    Graduate-level science questions

    • GLM 4.6 Turbo: 63.2%
    • GLM 5 Turbo: 84.7%Top

  • MMLU-Pro

    Multi-subject knowledge and reasoning

    • GLM 4.6 Turbo: 78.4%
    • GLM 5 Turbo: —

  • IFBench

    Following precise output instructions

    • GLM 4.6 Turbo: 36.7%
    • GLM 5 Turbo: 73.2%Top

Coding

  • LiveCodeBench

    Recent competitive programming problems

    • GLM 4.6 Turbo: 56.1%
    • GLM 5 Turbo: —

Math

  • AIME 2025

    Competition mathematics, 2025 problems

    • GLM 4.6 Turbo: 44.3%
    • GLM 5 Turbo: —

Legacy evaluations

  • Terminal-Bench Hard

    Earlier terminal task suite

    • GLM 4.6 Turbo: 28.8%
    • GLM 5 Turbo: 33.3%Top

  • τ²-Bench Telecom

    Tool use in a customer-support simulation

    • GLM 4.6 Turbo: 76.9%
    • GLM 5 Turbo: 98.5%Top

  • AA-LCR (unversioned)

    Long-context reasoning, earlier grading

    • GLM 4.6 Turbo: 26.3%
    • GLM 5 Turbo: 71.7%Top

Scores from Artificial Analysis, updated Oct 26, 2026. Artificial Analysis

Developers

Use it through the API

Noumen’s API is OpenAI-compatible: any Chat Completions client works with a base URL and a key.

Read the quickstart
curl https://www.noumen.xyz/api/v1/chat/completions \
  -H "Authorization: Bearer $NOUMEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "z-ai/GLM-4.6-turbo",
    "messages": [{ "role": "user", "content": "Explain this stack trace." }]
  }'
import os
from openai import OpenAI

client = OpenAI(base_url="https://www.noumen.xyz/api/v1", api_key=os.environ["NOUMEN_API_KEY"])
reply = client.chat.completions.create(
    model="z-ai/GLM-4.6-turbo",
    messages=[{"role": "user", "content": "Explain this stack trace."}],
)
print(reply.choices[0].message.content)

Z.ai

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