Model decision surface

Compare AI models

Start with GLM 5.3 and GLM 5.3 Flash, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.

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Current public data

GLM 5.3 vs GLM 5.3 Flash

Live dataset updated 9/9/2026, 8:46:14 PM UTC

Open 1200×630 evidence receipt

Factual comparison of GLM 5.3 and GLM 5.3 Flash
Field	GLM 5.3 Z.ai	GLM 5.3 Flash Z.ai
ModelCap position	#8	#11
Index score	82.1	78.7
Evidence	Measured4 public benchmark observations across 4 boards	Measured4 public benchmark observations across 4 boards
Input / 1M	$1.40	$0.075
Output / 1M	$4.40	$0.25
Pricing status	fresh	fresh
Context	1.3M	1.3M
Providers	27	26
Weight access	Restricted license	Open weights

Decision facts

GLM 5.3 is #8; GLM 5.3 Flash is #11 on the same current language board.
Index scores are 82.1 for GLM 5.3 and 78.7 for GLM 5.3 Flash. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
Both positions use Measured evidence.
Listed output price per 1M tokens is $4.40 for GLM 5.3 and $0.25 for GLM 5.3 Flash. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $5.00 for GLM 5.3 versus $0.28 for GLM 5.3 Flash. GLM 5.3 Flash costs 94.5% less in this scenario. This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the selected endpoint before budgeting.
Published context is 1,310,720 tokens for GLM 5.3 and 1,310,720 for GLM 5.3 Flash.
Weight access differs: GLM 5.3 is restricted; GLM 5.3 Flash is open.
ModelCap currently lists 27 providers for GLM 5.3 and 26 for GLM 5.3 Flash.

These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.

Popular comparisons

Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.