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Comparison · AI Models & LLMs

GLM-4.6 vs GPT-6 Astra

The same method as our rankings: scores from the engine, sourced data, verified prices.

Details: GLM-4.6 →Details: GPT-6 Astra →

Z.ai GLM-4.6 — drawn card, not a photograph of the product

GLM-4.6

Z.ai

Full sheet →

74.6/100

SWE-bench accuracy
68.2%
Context window
200k tokens
Maximum output
128k tokens
Input cost per 1M tokens
$0.60
OpenAI gpt-6-astra — drawn card, not a photograph of the product

GPT-6 Astra

OpenAI

Full sheet →
Context window
1.05M tokens
Maximum output
128k tokens
Input cost per 1M tokens
$10.00
Output cost per 1M tokens
$50.00

The numbers side by side

Each bar is the product's verified figure; on every row the longer bar is the higher of the two values.

  • Context windowhigher is better
    GLM-4.6200k tokens
    GPT-6 Astra1.05M tokens
  • Maximum outputhigher is better
    GLM-4.6128k tokens
    GPT-6 Astra128k tokens
  • Input cost per 1M tokenslower is better
    GLM-4.6$0.60
    GPT-6 Astra$10.00
  • Cached input cost per 1M tokenslower is better
    GLM-4.6$0.11
    GPT-6 Astra$1.00
  • Output cost per 1M tokenslower is better
    GLM-4.6$2.20
    GPT-6 Astra$50.00

Who wins where

  • For long documentsGPT-6 AstraContext window
  • Cheaper to readGLM-4.6Input cost per 1M tokens
  • Cheaper to writeGLM-4.6Output cost per 1M tokens

GPT-6 Astra: reads images · GPT-6 Astra: calls tools and functions · GLM-4.6: open weights (downloadable)

Data sheet side by side

Performance

SWE-bench accuracy68.2%Not stated

Memory and answer length

Context window200k tokens✓1.05M tokens425% more
Maximum output128k tokens128k tokens

API prices

Input cost per 1M tokens✓$0.6094% less$10.00
Cached input cost per 1M tokens✓$0.1189% less$1.00
Output cost per 1M tokens✓$2.2096% less$50.00

Knowledge and abilities

Knowledge cutoffNot statedApril 2026
Reads imagesNot statedYes
Calls tools and functionsNot statedYes

Size and openness

Parameters357 billionNot stated
Open weights (downloadable)YesNot stated

What a month costs

Change the volumes: the cost is worked out from the verified list prices above.

GLM-4.6$2.30per month · $27.60 per yearThe cheaper one — you save $42.70 per month
GPT-6 Astra$45.00per month · $540 per year

The scenarios are only starting points to edit, not data about your use. List prices without discounts, time-of-day rates or taxes.

Questions and answers

For long documents: GLM-4.6 or GPT-6 Astra?

GPT-6 Astra: 1.05M tokens against 200k tokens (Context window).

Cheaper to read: GLM-4.6 or GPT-6 Astra?

GLM-4.6: $0.60 against $10.00 (Input cost per 1M tokens).

Cheaper to write: GLM-4.6 or GPT-6 Astra?

GLM-4.6: $2.20 against $50.00 (Output cost per 1M tokens).

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