GLM 5.3 Flash

Best for everyday coding at a flash price.

Artificial Analysis Intelligence Index: 42; #3 of 6 models we serve
DeepSWE: 63.4%; #4 of 5 models we serve
Terminal-Bench 2.1: 84.3%; #3 of 6 models we serve
Context window: 1M; 128K max output

How it ranks

Against every model we serve, best first. Starred scores are reported by the publisher on its model card; the rest are independent measurements. About the scores

Artificial Analysis Intelligence Indexby Artificial Analysis

GLM 5.345
Kimi K344
GLM 5.3 Flash42
DeepSeek V4.1 Flash39
DeepSeek V4 Flash34
Umans Flash18

DeepSWEby Datacurve

DeepSeek V4.1 Flash74.2%^{* reported by the publisher}
GLM 5.369%
Kimi K368.5%
GLM 5.3 Flash63.4%
DeepSeek V4 Flash54.4%^{* reported by the publisher}

Not published: Umans Flash.

Terminal-Bench 2.1by tbench.ai

DeepSeek V4.1 Flash90.6%^{* reported by the publisher}
Kimi K385%
GLM 5.3 Flash84.3%
GLM 5.383.9%
DeepSeek V4 Flash78.7%
Umans Flash44.9%

Artificial Analysis Intelligence Index for GLM 5.3 Flash: independent measurement. Source
DeepSWE for GLM 5.3 Flash: independent measurement. Source
Terminal-Bench 2.1 for GLM 5.3 Flash: independent measurement. Source

Pricing

Input: $0.15 per 1M tokens
Output: $0.50 per 1M tokens
Cache read: $0.03 per 1M tokens

Every request is billed for exactly the tokens it uses. All prices

Specs

Context window: 1M tokens
Max output: 128K tokens
Vision: Yes
Tool calling: Yes
Reasoning: Always on (low, high, max)
Default effort: max
Weights: FP8 on Hugging Face
In production since: September 9, 2026

Quickstart

Pick your tool; the command already carries this model's id. More tools (Pi, Copilot, Zed, omp) in the setup guides.

OpenCode

Built in

Launch OpenCode on this model with the umans CLI. Umans AI is also built into OpenCode: run /connect and pick it.

Terminal

curl -fsSL https://api.code.umans.ai/cli/install.sh | bash   # once
umans opencode --model umans-glm-5.3-flash

Full setup in the docs

How it ranks

Pricing

Specs

Quickstart

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