Z.ai (GLM)

GLM 5.3 FlashX Legal

z-ai/glm-5.3-flashx-legal
Released Nov 2, 2026Open Weights
ThinkingToolsVisionopen weights

GLM-5.3-FlashX-Legal (GLM-Legal) is Z.ai's legal-domain variant of GLM-5.3-FlashX, a native multimodal model that accepts text, image, and video input and produces text. It adds legal-domain mid-training and post-training with reinforcement...

Cost / 1M tokens

Low usage

$0.37

input

$0.075

cached input

$1.25

output

Context Window

1M

Up to 131K max output

Modalities

text, image, video → text

Other tokenizer

Quickstart & API

z-ai/glm-5.3-flashx-legal
Open the model picker in ChatOSS Desktop (Code, Kanban, or Chat) and select or paste this model ID.

Best for & Strengths

Key Strengths

Open weightsExtended reasoningTool & agent callingMultimodal vision

Recommended Workloads in ChatOSS

  • Coding agents
  • Complex reasoning & debugging
  • Screenshot-to-code workflows
Available in ChatOSS Code, Kanban Orchestrate, and Chat modes via Plus, Max, or BYOK.

Active Provider Endpoints (1)

Upstream inference providers serving GLM 5.3 FlashX Legal, with per-provider pricing, context limits, quantization, and 24-hour uptime.

ProviderInput / 1MOutput / 1MCache Read / 1MContextMax OutputQuantizationUptime (24h)
Z.AIcache
z-ai/fp8
$0.37$1.25$0.0751M131Kfp899.9%

Supported API Parameters

Parameters accepted by this model when called through ChatOSS or OpenRouter.

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatstructured_outputstemperaturetool_choicetoolstop_ktop_p

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