GLM 5.3 FlashX

by Z.aiz-ai/glm-5.3-flashx

  • Text
  • No route yet
  • Released

LLMCompare cannot run GLM 5.3 FlashX yet.No route to this model is configured on this site yet. Its prices and parameters are listed below for reference.

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GLM 5.3 FlashX at a glance

Context length
1,048,576 tokens
Maximum output
131,072 tokens
Accepts
Text, Image, Video
Returns
Text
Features
ReasoningJSON outputTool callingPrompt cachingImage input
Reasoning effort levels
maxhighlowReasoning is always on for this model.
Released
18 Sep 2026
Knowledge cutoff
Not published

Model facts synced from the OpenRouter model list on 21 Oct 2026.

GLM 5.3 FlashX pricing by route

A route is the service LLMCompare calls to reach the model. GLM 5.3 FlashX has 1 route. Prices are in US dollars.

Prices of GLM 5.3 FlashX on each route
RouteOn LLMCompareInputper 1M tokensOutputper 1M tokensCache readper 1M tokensPrice verified onSource
OpenRouterDefaultNot configured$0.37$1.25$0.09openrouter.ai/z-ai/glm-5.3-flashx

The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.

Cost calculator

Estimate what a batch of calls to GLM 5.3 FlashX costs. The starting numbers are examples. Change them to match your task.

Part of the input tokens above, billed at the cache read price.

Billed in addition to the output tokens.

Cost per call
$0.001
2 credits
Cost of 100 calls
$0.0995
200 credits

Calculated from the OpenRouter prices verified on 21 Oct 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.

Parameters you can set

These are the parameters LLMCompare can set when it calls the model through OpenRouter.

Parameters of GLM 5.3 FlashX
ParameterTypeRange or optionsDefault
temperatureNumber0 to 2in steps of 0.1Provider default
top_pNumber0 to 1in steps of 0.05Provider default
max_tokensInteger1 to 131,072Provider default
reasoning_effortOne ofmaxhighlowmax
response_formatOne oftextjson_objectProvider default

About GLM 5.3 FlashX

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...

Description as published for this model. LLMCompare has not edited it.

Models to compare with GLM 5.3 FlashX

Text models from the same provider and models at the nearest price. The order is not a ranking.

Models to compare with GLM 5.3 FlashX
Add to comparisonModelContextMax outputInput priceper 1M tokensOutput priceper 1M tokensFeaturesReleasedOn LLMCompare
GLM 5.3Z.aiz-ai/glm-5.31.05M944k$0.079$1.40ReasoningJSONToolsCacheNo route yet
GLM 4.6VZ.aiz-ai/glm-4.6v131k32.8k$0.30$0.90JSONToolsCacheVisionNo route yet
GLM 4.5VZ.aiz-ai/glm-4.5v65.5k16.4k$0.60$1.80JSONToolsCacheVisionNo route yet
Qwen3.7 PlusQwenqwen/qwen3.7-plus1M131k$0.32$1.28JSONToolsCacheVisionNo route yet
Perceptron Mk1.5Perceptronperceptron/perceptron-mk1.536.9k8.2k$0.15$1.50ReasoningJSONToolsVisionNo route yet
Inkling SmallThinking Machinesthinkingmachines/inkling-small524k262k$0.45$1.20ReasoningToolsCacheVisionNo route yet

Questions about GLM 5.3 FlashX

How much does GLM 5.3 FlashX cost?
On the OpenRouter route, GLM 5.3 FlashX costs $0.37 per 1 million input tokens and $1.25 per 1 million output tokens, in US dollars. Input tokens that GLM 5.3 FlashX reads from the prompt cache cost $0.09 per 1 million tokens. LLMCompare verified this price on 21 Oct 2026.
What is the context length of GLM 5.3 FlashX?
GLM 5.3 FlashX has a context length of 1,048,576 tokens and returns up to 131,072 output tokens in one call.
What inputs does GLM 5.3 FlashX accept?
GLM 5.3 FlashX accepts these inputs: Text, Image, Video. GLM 5.3 FlashX returns: Text.
Which reasoning effort levels does GLM 5.3 FlashX support?
GLM 5.3 FlashX supports these reasoning effort levels: max, high, low. Reasoning is always on for GLM 5.3 FlashX and cannot be turned off.
Can I test GLM 5.3 FlashX on my own data?
Not yet. LLMCompare lists the prices and parameters of GLM 5.3 FlashX, but no route to GLM 5.3 FlashX is configured on LLMCompare, so it cannot be selected for an evaluation.