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Z.ai: GLM 5.3 FlashX API Pricing

Z.ai: GLM 5.3 FlashX is an API model from z-ai. It costs $0.37 per 1M input tokens and $1.25 per 1M output tokens, with cached input at $0.09. Its context window is 1,048,576 tokens with up to 131,072 output tokens. A workload of 10M input + 2M output tokens costs about $6.2 per month.

Input

$0.37

per 1M tokens

Output

$1.25

per 1M tokens

Cached input

$0.09

per 1M tokens

Context window

1.04858M

1,048,576 tokens

Blended (80/20)

$0.546

per 1M tokens

GLM-5.3-FlashX is the high-speed variant of Z.ai's GLM-5.3-Flash, a native multimodal model delivering inference speeds of up to 200 tokens/s. Built on the same hybrid sparse and linear attention architecture...

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

At 10M input + 2M output tokens per month, Z.ai: GLM 5.3 FlashX costs about $6.2 ($3.7 input + $2.5 output). Try your own volumes in the cost calculator.

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

Qwen: Qwen3.7 Plus — $0.32 in / $1.28 out per 1M
Meta: Muse Glimmer 30B — $0.3 in / $1.2 out per 1M
Meituan: LongCat 2.0 — $0.3 in / $1.2 out per 1M
MiniMax: MiniMax M3 — $0.3 in / $1.2 out per 1M
MiniMax: MiniMax M2.7 — $0.3 in / $1.2 out per 1M
MiniMax: MiniMax M2-her — $0.3 in / $1.2 out per 1M

Where to run Z.ai: GLM 5.3 FlashX

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 FlashX with other models

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

Frequently asked questions

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

Z.ai: GLM 5.3 FlashX costs $0.37 per 1M input tokens and $1.25 per 1M output tokens (list price, snapshot October 22, 2026). At 10M input + 2M output tokens per month that is about $6.2.

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

Z.ai: GLM 5.3 FlashX has a context window of 1,048,576 tokens and can return up to 131,072 output tokens per response.

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

Cheaper models include Qwen: Qwen3.7 Plus ($0.32 in / $1.28 out), Meta: Muse Glimmer 30B ($0.3 in / $1.2 out), Meituan: LongCat 2.0 ($0.3 in / $1.2 out). See the full list on this page.

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

No. Z.ai: GLM 5.3 FlashX is a paid model at $0.37 input / $1.25 output per 1M tokens. 21 free models are listed on the free models page.

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