GLM-5.3-Flash
Canonical page on the main site: sinoaihub.com/models/glm-53-flash
Type
model
Definition
GLM-5.3-Flash is a Zhipu AI model in the GLM-5.3-Flash family: 320B total / 18B active; first open-source frontier model combining sparse + linear attention; mHC hyper-connections; 30T-token multimodal pre-training corpus; 1,048,576-token context window; 131,072 max output; open-weight; Apache-2.0 (per GitHub repo metadata; README has no separate weights-license section - verify per-model HF cards before reuse) license; released 2026-08-26.
Key facts
- Architecture: 320B total / 18B active; first open-source frontier model combining sparse + linear attention; mHC hyper-connections; 30T-token multimodal pre-training corpus
- Context window: 1,048,576 tokens (max output 131,072)
- Weights: open; Apache-2.0 (per GitHub repo metadata; README has no separate weights-license section - verify per-model HF cards before reuse) license
- API pricing: $0.15 input / $0.5 output per 1M tokens (USD)
- Released: 2026-08-26
- Capabilities: reasoning, coding, vision
Provider
Model Family
GLM-5.3-Flash
Version
Flash
Release Date
2026-08-26
Status
active
Architecture
320B total / 18B active; first open-source frontier model combining sparse + linear attention; mHC hyper-connections; 30T-token multimodal pre-training corpus
Parameter Information
- total_parameters: 320B
- active_parameters: 18B
Context Window
1048576
Maximum Output
131072
Capabilities
- reasoning: Yes
- coding: Yes
- vision: Yes
- video: Yes
- computer_use: Yes
- agent_capability: Yes
Open Weight
Yes
License
Apache-2.0 (per GitHub repo metadata; README has no separate weights-license section - verify per-model HF cards before reuse)
Self Hosting
Yes
Api Available
Yes
Pricing
- input_price_per_1m: 0.15
- output_price_per_1m: 0.5
- currency: USD
- pricing_ref: zhipu-ai
Official Api
Yes
Cloud Providers
- Z.ai
- BigModel
Regions
- international
- china
Benchmark Results
| benchmark | score | metric | date | source_type | source_url |
|---|---|---|---|---|---|
| Artificial Analysis Intelligence Index v4.1.1 | 57 | index score | 2026-08-26 | vendor_reported | https://docs.z.ai/guides/vlm/glm-5.3-flash |
| DeepSWE v1.1 | 63.4 | accuracy | 2026-08-26 | vendor_reported | https://docs.z.ai/guides/vlm/glm-5.3-flash |
| AutomationBench | 48.8 | accuracy | 2026-08-26 | vendor_reported | https://docs.z.ai/guides/vlm/glm-5.3-flash |
Known Limitations
- Reasoning always enabled; cannot be disabled
- Z.ai Code Bench is a private in-house benchmark
- Benchmarks vendor-reported; not independently verified
Verification Status
verified
License Changes
No documented license changes on record as of 2026-09-29.
Last Verified
2026-09-20
Source history
No documented source-change events located as of 2026-09-20.
Sources
| evidence_id | source_name | source_url | source_type | published | verified | confidence | conflict |
|---|---|---|---|---|---|---|---|
| src-models-glm-5.3-flash-1 | Z.ai docs — GLM-5.3-Flash model page | https://docs.z.ai/guides/vlm/glm-5.3-flash | Official documentation | — | 2026-09-20 | high | — |
| src-models-glm-5.3-flash-2 | Z.ai pricing | https://docs.z.ai/guides/overview/pricing | Official documentation | — | 2026-09-20 | high | — |
| src-models-glm-5.3-flash-3 | GLM-5 GitHub repository | https://github.com/zai-org/GLM-5 | Official documentation | — | 2026-09-20 | high | — |