GLM 5.3 FlashX: API pricing, context window and capabilities

Prices from official vendor price lists · October 2026

GLM 5.3 FlashX costs $0.37 per 1M input tokens and $1.25 per 1M output tokens, with a 1M context window. One of the cheapest models here — below 61% of the rating on output price. Suited to high volume, where a wrong answer is cheap to retry.

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Capabilities

API $/1M (in / out)

$0.37 / $1.25

Context window

1M tokens

Price / mo

API only

Overview Reviews

GLM 5.3 FlashX is an AI model from Z.ai, priced at $0.37 input and $1.25 output per 1M tokens. That places it in the budget tier of this rating — cheaper than 61% of the 205 priced models listed.

It holds 1M tokens in a single conversation, enough for a full codebase or a contract bundle in one pass. Capabilities recorded in this rating: text & chat, vision, video, reasoning, tool calling. Access is through the API rather than a consumer subscription.

API price$0.37 / $1.25per 1M tokens, in / out

Context1M tokenstokens per conversation

VendorZ.aiall models from this vendor

TierBudgetcheaper than 61% of models

Cost calculator

1M tokens/mo10M tokens/mo50M tokens/mo200M tokens/mo

Standard$1.03~~AED 4 per month~~

With batch −50%$0.52~~AED 2 per month~~

With caching on input$0.95~~AED 3 per month~~

Standard$10.30~~AED 38 per month~~

With batch −50%$5.15~~AED 19 per month~~

With caching on input$9.47~~AED 35 per month~~

Standard$51.50~~AED 189 per month~~

With batch −50%$25.75~~AED 95 per month~~

With caching on input$47.34~~AED 174 per month~~

Standard$206~~AED 757 per month~~

With batch −50%$103~~AED 378 per month~~

With caching on input$189~~AED 695 per month~~

Assumes a 1:3 input-to-output ratio, which is typical for chat and generation. Dirham figures use 3.6725 per dollar. Batch and caching discounts apply where the vendor offers them.

Compared with alternatives

How GLM 5.3 FlashX sits against its neighbours in this rating. Tap a card to open that model.

GPT-5.6 Luna

Cheaper

OpenAI

$0.2 / $1.21.05M tokens

GPT-5.4 Nano

Closest match

OpenAI

$0.2 / $1.25400K tokens

Qwen3.7 Plus

Step up

Qwen

$0.32 / $1.281M tokens

Good and poor fit

Good fit

Multi-step analysis, planning and code review, where the first plausible answer is often wrong.
Reading screenshots, charts, scanned documents and photos.
Whole codebases, contract bundles and long transcripts in a single pass.

Related filters

Text & chat234 models for text generation and chat

Vision159 models that read images

Reasoning175 models that think before answering

Tool calling172 models that call your functions

Long context 1M+88 models holding 1M tokens or more

Z.ai12 models from this vendor

All 245 modelsThe full rating with filters and prices

Frequently asked questions

How much does GLM 5.3 FlashX cost?

$0.37 / $1.25 per 1M tokens, input and output. In dirhams that is roughly AED 1.36 per 1M input tokens. Batch processing halves it where the vendor offers it.

What is the context window of GLM 5.3 FlashX?

1M tokens in a single conversation.

What can GLM 5.3 FlashX do?

In this rating it is recorded with: text & chat, vision, video, reasoning, tool calling, structured JSON output, long context 1M+, prompt caching, multilingual, proprietary API.

Is GLM 5.3 FlashX a good choice?

It depends on the job. See the good-fit and poor-fit lists above, and compare against the neighbouring models before committing.

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