Home › Providers › z-ai › Z.ai: GLM 5.3 Flash

Z.ai: GLM 5.3 Flash API Pricing

Z.ai: GLM 5.3 Flash is an API model from z-ai. It costs $0.15 per 1M input tokens and $0.5 per 1M output tokens, with cached input at $0.03. Its context window is 1,048,576 tokens with up to 943,717 output tokens. A workload of 10M input + 2M output tokens costs about $2.5 per month.

Input

$0.15

per 1M tokens

Output

$0.5

per 1M tokens

Cached input

$0.03

per 1M tokens

Context window

1.04858M

1,048,576 tokens

Blended (80/20)

$0.22

per 1M tokens

GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while...

How much does Z.ai: GLM 5.3 Flash cost for a real workload?

At 10M input + 2M output tokens per month, Z.ai: GLM 5.3 Flash costs about $2.5 ($1.5 input + $1 output). Try your own volumes in the cost calculator.

What are cheaper alternatives to Z.ai: GLM 5.3 Flash?

Qwen: Qwen3 235B A22B Instruct 2507 — $0.09 in / $0.55 out per 1M
Qwen: Qwen3.8 Omni Flash — $0.15 in / $0.47 out per 1M
Qwen: Qwen3.8 Flash — $0.15 in / $0.47 out per 1M
Qwen: Qwen3 30B A3B — $0.12 in / $0.5 out per 1M
Anthropic: Claude Haiku 5.5 — $0.1 in / $0.5 out per 1M
OpenAI: GPT-6 Luna Pro — $0.1 in / $0.5 out per 1M

Where to run Z.ai: GLM 5.3 Flash

AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.

Run it on AI/ML API →Run it on Novita AI →

Disclosure: links to these platforms may be affiliate links — if you sign up or buy through them, LLMPrices may earn a commission at no extra cost to you.

Compare Z.ai: GLM 5.3 Flash with other models

Z.ai: GLM 5.3 Flash vs Z.ai: GLM 5.3 Flash (batch)Z.ai: GLM 5.3 Flash vs Z.ai: GLM 4.7 FlashZ.ai: GLM 5.3 Flash vs Z.ai: GLM 4.5 AirZ.ai: GLM 5.3 Flash vs Z.ai: GLM 4.6VZ.ai: GLM 5.3 Flash vs Z.ai: GLM 5.3 FlashXZ.ai: GLM 5.3 Flash vs Z.ai: GLM 4.5V

Frequently asked questions

How much does Z.ai: GLM 5.3 Flash cost?

Z.ai: GLM 5.3 Flash costs $0.15 per 1M input tokens and $0.5 per 1M output tokens (list price, snapshot October 22, 2026). At 10M input + 2M output tokens per month that is about $2.5.

What is the context window of Z.ai: GLM 5.3 Flash?

Z.ai: GLM 5.3 Flash has a context window of 1,048,576 tokens and can return up to 943,717 output tokens per response.

What are cheaper alternatives to Z.ai: GLM 5.3 Flash?

Cheaper models include Qwen: Qwen3 235B A22B Instruct 2507 ($0.09 in / $0.55 out), Qwen: Qwen3.8 Omni Flash ($0.15 in / $0.47 out), Qwen: Qwen3.8 Flash ($0.15 in / $0.47 out). See the full list on this page.

Is Z.ai: GLM 5.3 Flash free to use?

No. Z.ai: GLM 5.3 Flash is a paid model at $0.15 input / $0.5 output per 1M tokens. 21 free models are listed on the free models page.

Provider: z-ai · Model ID: z-ai/glm-5.3-flash · Modality: text+image+video->text · Price snapshot October 22, 2026, refreshed daily. How we collect prices