API model · 1 comparison

GLM 5.3 Flash compared

How GLM 5.3 Flash stacks up against other models on price, limits and the inputs it accepts. Pick a matchup for the full side-by-side, a monthly cost calculator and our verdict.

Prices checked 15 October 2026 from the OpenRouter API.

GLM 5.3 Flash at a glance

Input / 1M tokens: $0.04
Output / 1M tokens: $0.90
Context window: 1,048,576 tokens
Longest reply: 943,718 tokens
Accepts: image, text, video
Providers on OpenRouter: 29
Best provider uptime, 24 h: 100%

Official website

Compare GLM 5.3 Flash with

vs DeepSeek V4.1 Flash

GLM 5.3 Flash vs DeepSeek V4.1 Flash

GLM 5.3 Flash from Z.ai and DeepSeek V4.1 Flash are the two most-used budget models on OpenRouter right now. Both are open-weight, MIT-licensed and can read up to about a million tokens. The differences are in what they accept, how they're built and what it takes to run them yourself.

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