ITG NowGLM-5.3
Z.ai · Released 25 Aug 2026 · Open weights
Strong open all-rounder with one of the best open coding scores on LiveBench.
Key facts
- Maker
- Z.ai
- Released
- 25 Aug 2026
- Open weights
- Yes, you can download it and run it yourself
- License
- GLM-5.3 license: free to use with conditions
- Size
- 753B total (Hugging Face count) parametersB = billion, T = trillion. Bigger usually needs a stronger computer.
- Official page
- Official page for GLM-5.3 (huggingface.co)
Scores
"Independent" = run by an outside group. "Maker's own number" = the company's own claim.
All-roundArtificial Analysis Intelligence Index
45 index points #7 of 17 models scored independent
One combined score from many independent tests of how smart a model is.
setting: max · as of 18 Oct 2026 · source
Chat & writingLMArena Text
1479 Arena score Tied #5 of 15 models scored independent
When real people compare two AI answers side by side without knowing which AI wrote them, which one do they pick more often?
setting: Max · as of 15 Oct 2026 · source
Build websites & appsLMArena WebDev
1621 Arena score #8 of 18 models scored independent
When people ask two AIs to build the same website or app and compare the results, which one do they pick?
setting: Max · as of 17 Oct 2026 · source
CodingLiveBench 2.0 Coding
82.8 score out of 100 #11 of 15 models scored independent
Fresh coding tasks with tests that check the answer, changed often so models cannot memorize them.
setting: highest supported effort · as of 14 Oct 2026 · source
ReasoningLiveBench 2.0 Reasoning
85.8 score out of 100 #7 of 15 models scored independent
Fresh logic and puzzle questions with one right answer, changed often so models cannot memorize them.
setting: highest supported effort · as of 14 Oct 2026 · source
Agent tasksTerminal-Bench 4.0
41.8 % of tasks done #4 of 6 models scored independent
Can an AI agent finish real jobs in a computer's command line, like setting up software or fixing a broken project?
setting: max, Claude Code · as of 18 Oct 2026 · source
Most used (this week)OpenRouter usage (this week)
5.23 trillion tokens this week #4 of 4 models scored independent
How much developers actually use each model through OpenRouter, a popular service that connects apps to many AI models.
setting: week to 16 Oct · as of 16 Oct 2026 · source
SpeedOutput speed
81 tokens per second #10 of 16 models scored independent
How many tokens (pieces of words) per second the model writes once it starts answering. Higher is faster.
setting: max · as of 18 Oct 2026 · source
How it compares
The 3 models closest to GLM-5.3 on the Artificial Analysis Intelligence Index, an all-round score. GLM-5.3: 45 index points, #7 of 17 models scored.
News about GLM-5.3 on ITG Now
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FAQ
Is GLM-5.3 free and open?
GLM-5.3 has open weights: you can download it and run it on your own computer or server. License: GLM-5.3 license: free to use with conditions.
How much does GLM-5.3 cost?
There is no listed price per token. It has open weights, so you can run it yourself or through a host you pick.
What is GLM-5.3 best at?
Strong open all-rounder with one of the best open coding scores on LiveBench. Its best result: #4 of 6 models scored on Terminal-Bench 4.0 (agent tasks).
Who makes GLM-5.3?
GLM-5.3 is made by Z.ai. It came out on 25 Aug 2026.