Z.ai: GLM 5.3

z-ai/glm-5.3

CHAT High tier Reasoning

Z.ai: GLM 5.3 (z-ai/glm-5.3) is a chat model from openrouter with a 1.3M-token context window; capabilities tools, reasoning; input text; output text.

1.3MContext

943.7KMax output

$1.4$ / 1M in

Pricing

Input: $1.4 / 1M tokens
Output: $4.4 / 1M tokens
Currency: USD
Note: Indicative US list price — verify with the vendor.

Indicative US list price — a reference only, verify with the vendor. Source: litellm. Last verified 2026-09-26.

Specifications

Context window: 1,310,720 tokens (1.3M)
Max output: 943,717 tokens
Input modalities: text
Output modalities: text

Capabilities

tools reasoning

Provenance

litellmopenrouter-api

Last verified: 2026-09-26

Related models

MoonshotAI: Kimi K3

moonshotai/kimi-k3

openrouter · CHAT · 1.0M ctx

xAI: Grok 4.5

x-ai/grok-4.5

openrouter · CHAT · 500K ctx

Meta: Muse Spark 1.1

meta/muse-spark-1.1

openrouter · CHAT · 1.0M ctx

Qwen: Qwen3.7 Max

qwen/qwen3.7-max

openrouter · CHAT · 1M ctx

Z.ai: GLM 5

z-ai/glm-5

openrouter · CHAT · 202.8K ctx

Qwen: Qwen3.6 Plus

qwen/qwen3.6-plus

openrouter · CHAT · 1M ctx

Markdown · Vendor JSON · Full catalog · All openrouter models