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GLM-5.3

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Zhipu's open-source model with a 1M-token context, positioned for coding and cyber-defence tasks

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TrustList summary

GLM-5.3 is a model from Zhipu AI, released on 14 August 2026, with its weights published as open source about two weeks after the API release. Zhipu says the base model is unchanged from GLM-5.2 and that the gains come from heavy post-training. It is positioned for coding and cyber-defence work.

Features

  • Coding: Zhipu reports a 50% improvement in coding capability on its internal evaluations.
  • Vulnerability reasoning: scores 84.5% on the CyberGym evaluation.
  • Agentic and terminal tasks: Zhipu's own figures place it first in the open-source group on Terminal Bench 3.0, and on Agents' Last Exam as well.
  • Long output: up to 128K output tokens.

Key facts

  • Released: 14 August 2026
  • Base model: unchanged from GLM-5.2, per Zhipu
  • Context window: 1M tokens

Summary written by TrustList from the business's own published information, Oct 2026.

Benchmarks & AI stats

AI model rankings
BenchmarkOfficialCommunity avg
CyberGymreasoning84.5 %-

“Official” values are editor-approved and feed the ranking. “Community avg” is the mean of member submissions (shown for transparency; it never affects the ranking until an editor approves a value).

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Trust Score

4/ 100
Trust Score: New

An earned signal from verification, reviews, awards, transparency and engagement - the vendor can't buy it.

Verification
0/100 · 20%
Reviews
0/100 · 30%
Awards
0/100 · 15%
Transparency
18/100 · 20%
Engagement
0/100 · 15%
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Updated 9/16/2026

What the business tells TrustList

Founded
2026 (0 years) evidence sent

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