GLM 5.3
Z.ai (Zhipu AI)family · GLM5.3huggingface.co/zai-org/GLM-5.3
GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...
Updated 2 h ago · first seen 11 Sept 2026
model_01M294AJ5462DT6GQKJAGHX7FP
Overview
Identity
- Canonical model
- Yesidentity confidence: mediumOne row per real model release. Artifacts (checkpoints, quantisations, conversions) and folded evaluation variants point here.
- Official checkpoints
- official_checkpoints = hf_repo identifiers carried by the model itself; artifacts are separate entities pointing here through canonical_id.
- Artifacts
- 1 quantization0 official · 1 third-partySeparate entities (checkpoint · quantization · conversion · packaging) pointing to this model through canonical_id.
- Provider deployments
- 4
- API aliases
- fireworks/glm-5p3glm-5-3z-ai/glm-5.3Identifiers under which providers and evaluators refer to this model.
- Folded evaluation variants
- 0Effort / thinking variants (…-high, …-non-reasoning) are result configurations of this model, not separate models. Their old URLs redirect here.
Openness
Open weights— weights downloadable under Other; 7 dimensions unknown.
Weights downloadable under a permissive or Creative Commons licence allowing commercial use; code or data may be missing.
Weights
Yes
Inference code
—
Training code
—
Training data
—
Dataset
—
Commercial use
—
Redistribution
—
Derivatives
—
Licence: Other (unclassified licence) (unknown · stated as “other”)
dimensions marked null are unknown, not false
Key facts
- Release date
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 7 h agomedium
- Model card
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 12 h agomedium
- Openrouter id
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
Architecture
- Architecture
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 11 h agomedium
- Model type
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 11 h agomedium
- Parameters
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 12 h agomedium
- Weights dtype
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 11 h agomedium
- File size
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 11 h agomedium
- Library name
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 11 h agomedium
- Pipeline tag
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 12 h agomedium
- Hugging Face repo
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
Capabilities
Modalities
- Modalities
- text
- Input
- text
- Output
- text
Capabilities
Tool calling
Yes
OpenRouter public model & pricing listing · T2
Structured output
Yes
OpenRouter public model & pricing listing · T2
Reasoning
Yes
OpenRouter public model & pricing listing · T2
Vision
Unavailable
Audio
Unavailable
Fine-tuning available
Unavailable
- Context window
Source:OpenRouter public model & pricing listingT2observed 9 h agomedium
- Max output
Source:OpenRouter public model & pricing listingT2observed 12 h agomedium
- Languages
Source:Hugging Face Hub (public pages, model cards, papers)T2observed 11 h agomedium
Benchmarks20
Compare with another model →Comparable same task and conditions · Partially comparable same task, conditions differ (effort, temperature, judge) · Not comparable different variant or metric
Current rows only, grouped by benchmark → canonical metric → comparability group (task configuration). Effort variants folded into this model appear as rows of the same group. 20 current rows in total. “vs leader” compares with the current leader of the benchmark's primary group only; other groups are not directly comparable. Comparability rules →
Providers & Pricing7
All offers in the price terminal →USD per 1M tokens as published by each provider; native units (per-request fees, flex/priority tiers) are kept verbatim. Rows are append-only — every price change is kept in the history below. Cost of a workload →
Price history
Output price · USD / 1M tokens 4 providers
- Fireworks AI
- Z.ai API
- Together AI
- OpenRouter
- OpenRouter$4.4 → $2.212 Sept 2026
- OpenRouterfirst observed $4.412 Sept 2026
- Fireworks AI$4.4 → $6.612 Sept 2026
- Together AIfirst observed $4.411 Sept 2026
- Z.ai API$4.4 → $2.211 Sept 2026
- Z.ai APIfirst observed $4.411 Sept 2026
- Fireworks AIfirst observed $4.411 Sept 2026
Input price · USD / 1M tokens 4 providers
- Fireworks AI
- Z.ai API
- Together AI
- OpenRouter
- OpenRouter$1.4 → $0.7012 Sept 2026
- OpenRouterfirst observed $1.412 Sept 2026
- Fireworks AI$1.4 → $2.112 Sept 2026
- Together AIfirst observed $1.411 Sept 2026
- Z.ai API$1.4 → $0.7011 Sept 2026
- Z.ai APIfirst observed $1.411 Sept 2026
- Fireworks AIfirst observed $1.411 Sept 2026
Hardware fit37
Assumptions (7)
- Estimated, not measured: weights = parameters × bytes/param × 1.15 runtime overhead (or the observed artifact file size when one is recorded).
- bytes/param: 4bit = 0.5, 8bit = 1.0, fp16 = 2.0 (uniform quantization, no per-layer exceptions).
- KV cache: 2 × layers × kv_heads × head_dim × 2 bytes × context × batch when the architecture is known; otherwise 0.5 GB per 8 192 tokens (× batch), independent of architecture (GQA/MLA models need less).
- A model 'fits' when the estimate is at most the device memory minus 2 GB reserved for the OS and framework.
- Mixture-of-experts models are estimated on total parameters (all experts must be resident); active parameters are ignored.
- Device memory uses the largest configuration when several are listed (e.g. Apple silicon tiers).
- Multi-GPU: device memories are summed; interconnect bandwidth, tensor-parallel replication and pipeline bubbles are not modelled.
Lineage
Open in Graph →Versions & Artifacts1
Version history
Context window2 changes
11 Sept 2026→11 Sept 2026→12 Sept 2026current
Licensefirst observation only
11 Sept 2026current
Max outputfirst observation only
11 Sept 2026current
Opennessfirst observation only
11 Sept 2026current
Parametersfirst observation only
11 Sept 2026current
Each hop is a claim: click a value for its source, tier and observation time. Nothing is overwritten — a new observation closes the previous claim.
Artifacts 1
quantization 1
- amd/GLM-5.3-Quark-MXFP4-AttnFP8AMD · BF16/F32/F8_E4M3/U8409.5 GB
Papers1
- arXiv:2602.15763Active35
Timeline12
Full timeline →OpenRouter lists GLM 5.3 at $0.7 in / $2.2 out per 1M tokens
openrouterOpenRouter lists GLM 5.3 at $1.4 in / $4.4 out per 1M tokens
openrouterGLM 5.3 scores 83.9% on Terminal-Bench
artificial_analysisGLM 5.3 scores 41.92% on Terminal-Bench
artificial_analysisGLM 5.3 scores 42.26% on Humanity's Last Exam
artificial_analysisGLM 5.3 scores 44.86 on Artificial Analysis Intelligence Index
artificial_analysisFireworks AI lists GLM 5.3 at $2.1 in / $6.6 out per 1M tokens
fireworks_pricingGLM 5.3: context length changed from 1000000 to 1310720
Context window1M tokens→1.31M tokensopenrouterGLM 5.3: release date changed from 2026-08-25 to 2026-08-18
Release date25 Aug 2026→18 Aug 2026openrouterGLM 5.3: release date changed from 2026-08-18 to 2026-08-25
Release date18 Aug 2026→25 Aug 2026huggingface
Change history
Livebench hf linklivebench_hf_link1
Claims are temporal and append-only: a new observation closes the previous claim (valid_to) instead of overwriting it. Conflicting claims from different sources are kept side by side and flagged — never averaged. Methodology →
Provenance
Attributed facts
42
Source tiers
T242
Freshest observation
2 h ago
Conflicts
None
Source documents 9
Tier 1 = official/primary, 2 = quality secondary, 3 = community, 4 = unverified. Every snapshot is archived; see all sources and the methodology.
Data quality (72/100) measures how well AI Atlas knows this entity — completeness, primary-source ratio, freshness, conflicts — never how good the model is. Methodology →