GLM-5.3 specs, prices, where it runs and its benchmark standing

Name: GLM-5.3
Author: Z.ai

open weights · #37 overall, podium score 2.1 · top 10 on 3 of 11 · released Aug 14, 2026

Provider: Z.ai
Release date: Aug 14, 2026 · Pricing lists Aug 18, 2026; Boards
Parameters: 753B total; Hugging Face
Modalities: Text to Text; OpenRouter
License: GLM 5.3; Hugging Face
Context window: 1.05M tokens; Pricing
Pricing: $0.18 in / $1.4 out per 1M tokens; All prices
Hosting: 47 priced API routes · AWS Bedrock (31 regions) · OpenRouter · self-host: weights on Hugging Face; Pricing Regions
Hardware: Estimate: about 755 GB of weights as published (F8 E4M3), about 753 GB at 8-bit, about 377 GB at 4-bit, plus memory for the context; Hugging Face config
Weights: Open weights
Benchmarks: 11 boards captured, #37 overall

Rank	Board	Category	Score	Of
7	AA PricePrice · as “GLM-5.3 (Max)”	Price	$2.15	18
8	MCP AtlasAgents and tools · as “GLM 5.3”	Agents and tools	84.2%	37
8	AA SpeedSpeed · as “GLM-5.3 (max)” Unverified	Speed	32 tok/s	43
11	SWE-Bench ProCoding · as “GLM-5.3 (mini-swe-agent) max”	Coding	84.3%	18
11	OpenRouterUsage · as “z-ai/glm-5.3-20260816”	Usage	3.6T tok	18
17	AA IntelligenceReasoning · as “GLM-5.3 (Max)”	Reasoning	31.7	50
23	Text ArenaChat · as “GLM-5.3 (Max)”	Chat	1,482	84
25	WebDev ArenaCoding · as “GLM-5.3 (Max)”	Coding	1,621	82
29	Epoch ECIReasoning · as “GLM-5.3”	Reasoning	156.9	100
31	LiveBenchReasoning · as “glm-5.3”	Reasoning	76.1%	64
34	GPQA DiamondReasoning · as “glm-5.3_max”	Reasoning	90.9%	100

Versions and release history

7 versions in this line since Jul 28, 2025, from Pricing, OpenRouter and the boards.

Category ranks, more models and catalog changes