Identity
- Status
- active
- Developer ID
glm-5.3-flash- Released
- Sep 2, 2026
- Version
- GLM-5.3-Flash
- License
- MIT
Z.aiGLM 5.3 Flash
GLM-5.3-Flash is a native multimodal model with 320B total and 18B active parameters, a 1M-token context window, and always-on reasoning.
- Token context
- 1,000K tokens
- Inputs
- Text, Image, Video, Document
- Outputs
- Text
- Released
- Sep 2, 2026
Benchmark Market Position
Intelligence, Cost, and Efficiency
Rank #20 of 57
Claude Opus 5.5
GPT-5.5 Pro
Gemini 3.8 Flash- GPT-6.1 Sol
- GPT-6 Astra
Qwen3.8 Max
DeepSeek V4.1 Flash- Gemini 3.1 Pro
- GPT-5.6 Terra
Grok 4.7
ERNIE 5.1
Kimi K3- GLM 5.3
- Qwen3.8 Flash
- Qwen3.7 Plus
- DeepSeek V4 Pro
- GLM 5.3 Flash
Mistral Large 4- Gemma 4 31B
- Qwen3.8 27B
- Qwen3.5 397B A17B
Hy3- Gemma 4 26B A4B
Inkling- Mistral Large 3
- GPT-6 Luna
NVIDIA Nemotron 3 Ultra 550B A55B BF16- Inkling Small
MiniMax M3- Kimi K2.7 Code
- GPT-5.4 Mini
- Gemini 3.5 Flash Lite
- Qwen3.5 35B A3B
- GPT-5.4 Nano
Muse Glimmer 30B
Solar Pro 4- DeepSeek R1
Olmo 3 32B ThinkNova 2 Lite
Command A
Granite 4.2 30B- Granite 4.2 3B
- Granite 4.2 8B
- Llama 4 Maverick 17B 128E Instruct
- Llama 4 Scout 17B 16E Instruct
phi-4- NVIDIA Nemotron 3 Nano 30B A3B BF16
- NVIDIA Nemotron 3.5 Lightning 30B A3B
- GPT-4o
- GPT-4o Mini
- gpt-oss-120b
- gpt-oss-20b
Rank #2 of 27
- GLM 5.3 Flash
- MiniMax M3
- GPT-6 Luna
- Qwen3.8 Flash
- DeepSeek V4.1 Flash
- Gemini 3.5 Flash Lite
- Kimi K2.7 Code
- Mistral Large 4
- DeepSeek V4 Pro
- GPT-5.4 Nano
- Qwen3.8 27B
- Inkling
- NVIDIA Nemotron 3 Ultra 550B A55B BF16
- GPT-6.1 Sol
- Qwen3.8 Max
- Gemini 3.8 Flash
- Gemini 3.1 Pro
- Kimi K3
- GPT-5.4 Mini
- GLM 5.3
- GPT-5.6 Terra
- GPT-6 Astra
Rank #2 of 27
- DeepSeek V4.1 Flash
- GLM 5.3 Flash
- Qwen3.8 Flash
- GPT-6.1 Sol
- Qwen3.8 Max
- Gemini 3.8 Flash
- Gemini 3.1 Pro
- GPT-6 Luna
- DeepSeek V4 Pro
- Kimi K3
- Mistral Large 4
- MiniMax M3
- GPT-5.6 Terra
- Qwen3.8 27B
- GPT-6 Astra
- GLM 5.3
- Inkling
- Kimi K2.7 Code
- NVIDIA Nemotron 3 Ultra 550B A55B BF16
- Gemini 3.5 Flash Lite
- GPT-5.4 Nano
- GPT-5.4 Mini
The orange outline marks GLM 5.3 Flash. Each available panel preserves its real rank and value; missing benchmark or pricing inputs remain explicitly unranked.
Providers & Pricing
Estimate workload cost →| Provider | Input / 1M | Output / 1M | Cache read / 1M | Cache write / 1M | Observed | Evidence |
|---|---|---|---|---|---|---|
 DeepinfraAvailable | $0.15 | $0.50 | $0.030 | — | Oct 19, 2026 | Provider-reported |
Z.aiAvailable | $0.075 | $0.25 | $0.015 | — | Aug 29, 2026 | Provider-reported |
Benchmarks
All benchmark results →| LiveBench2026-06-25-90f8d44da965 | 73.27 | 34,707 | 1,270 | glm-5.3-flashaverage per case | Recomputedwinner eligible | Third-party benchmark |
| LMArena Text Arenatext-2026-10-15-a64ca3b12b6e | 1,470.53 | — | 32,925 | glm-5.3-flash; 95% CI [1465.67476412, 1475.38456118]; votes 32925; rank 29unknown | Original sourcewinner eligible | Third-party benchmark |
| LMArena Vision Arenavision-2026-10-09-a64ca3b12b6e | 1,296.03 | — | 11,157 | glm-5.3-flash; 95% CI [1288.97978191, 1303.07121064]; votes 11157; rank 23unknown | Original sourcewinner eligible | Third-party benchmark |
| ToneBench2026-10-17-10-task-e9c76358afb2 | 81.82 | 40,301 | 50 | GLM-5.3 Flash (max)average per case | Original sourcenot winner eligible | Third-party benchmark |
At a Glance
Model Facts
Capacity
- Token context
- 1,000K tokens
- Maximum output
- 131K tokens
- Total parameters
- 320B
- Active parameters
- 18B
- Knowledge cutoff
- Not reported
Interface and Access
- Inputs
- Text, Image, Video, Document
- Outputs
- Text
- API available
- Yes
- Open weights
- Yes
- Self-hostable
- Yes
- Reasoning
- Yes
- Vision
- Yes
- Tool calling
- Yes
- Capabilities
- agents, chat, computer-use, reasoning, structured outputs, tools, vision
This page represents one developer model product. Dated API snapshots, serving endpoints, pricing, regions, quantizations, and service tiers attach as versioned aliases or provider details and never create duplicate public model records.
Version Lineage
PredecessorUnknown
SuccessorsUnknown
Aliasesglm-5.3-flash, glm-5.3-flash, ox-alpha, zai-org/GLM-5.3-Flash
Explicit Unknowns
- Tokenizer
- Knowledge cutoff
Primary Evidence
Sources and Observation Date
GLM-5.3-Flash | Z.AI Developer DocumentZ.ai · observed Sep 2, 2026GLM-5.3-Flash API pricing | Z.AIZ.ai · observed Sep 3, 2026GLM-5.3-Flash: More Intelligence with Less ComputeZ.ai · observed Sep 2, 2026zai-org/glm-5.3-flash immutable Hub API metadataZ.ai · observed Sep 2, 2026Deepinfra catalogDeepinfra · observed Oct 19, 2026Fireworks Ai catalogFireworks Ai · observed Oct 19, 2026Hugging Face Publishers catalogHugging Face Publishers · observed Sep 2, 2026Together Ai catalogTogether Ai · observed Oct 19, 2026
Comparable Peers
Related Model Comparisons
| A | Pair | B | Context |
|---|---|---|---|
GLM 5.3 FlashZ.ai | vs | GLM 5.3Z.ai | family variantstext |
GLM 5.3 FlashZ.ai | vs | Nova 2 LiteAmazon | cross-developer peersimage, text, video |
GLM 5.3 FlashZ.ai | vs | DeepSeek V4 Flash BaseDeepSeek | cross-developer peerstext |
GLM 5.3 FlashZ.ai | vs | Command A VisionCohere | cross-developer peersimage, text |
GLM 5.3 FlashZ.ai | vs | DeepSeek V4 FlashDeepSeek | cross-developer peerstext |
GLM 5.3 FlashZ.ai | vs | DeepSeek V4 Flash Vision ExpDeepSeek | cross-developer peersimage, text |
GLM 5.3 FlashZ.ai | vs | Mistral Large 3Mistral AI | cross-developer peersimage, text |
GLM 5.3 FlashZ.ai | vs | Qwen3.7 PlusQwen | cross-developer peersimage, text, video |
GLM 5.3 FlashZ.ai | vs | Qwen3.8 FlashQwen | cross-developer peersimage, text, video |
GLM 5.3 FlashZ.ai | vs | GLM 5.2Z.ai | family variantstext |
GLM 5.3 FlashZ.ai | vs | GLM 5V TurboZ.ai | family variantsimage, text, video |
GLM 5.3 FlashZ.ai | vs | GLM OCRZ.ai | family variantsimage, text |
Questions
GLM 5.3 Flash FAQs
What is GLM 5.3 Flash?+
GLM-5.3-Flash is a native multimodal model with 320B total and 18B active parameters, a 1M-token context window, and always-on reasoning. It is developed by Z.ai and its current sourced lifecycle status is active.
What inputs and outputs does GLM 5.3 Flash support?+
GLM 5.3 Flash's current record lists Text, Image, Video, and Document as input and Text as output.
How much context does GLM 5.3 Flash support?+
The current record lists a 1,000K-token context window and a maximum output of 131K tokens.
Is GLM 5.3 Flash available through an API?+
GLM 5.3 Flash is marked as API-available. The directly sourced provider records currently include Deepinfra, Fireworks Ai, Together Ai, and Z.ai.
How large is GLM 5.3 Flash?+
The current record lists 320B total parameters and 18B active parameters. Its architecture is hybrid_sparse_linear_attention_moe.
What capabilities and tasks does GLM 5.3 Flash support?+
GLM 5.3 Flash's recorded capabilities are agents, chat, computer-use, reasoning, structured outputs, tools, and vision. Its supported tasks are coding, computer-use, document-question-answering, image, text, and video.
How much does GLM 5.3 Flash cost through an API?+
The lowest directly sourced prices currently attached to GLM 5.3 Flash are $0.075 per million input tokens through Z.ai and $0.25 per million output tokens through Z.ai. Prices are provider-specific and should be checked against each cited observation date.
Can GLM 5.3 Flash be self-hosted?+
GLM 5.3 Flash is an open-weight model. Self-hosting is supported, and the recorded license is MIT.
Does GLM 5.3 Flash have related versions or aliases?+
No predecessor is recorded. No successor is recorded. Recorded aliases are glm-5.3-flash, ox-alpha, and zai-org/GLM-5.3-Flash.
Which models can GLM 5.3 Flash be compared with?+
The current compatible peer set includes GLM 5.3, Nova 2 Lite, DeepSeek V4 Flash Base, Command A Vision, and DeepSeek V4 Flash. Compatibility requires shared sourced modalities and tasks; it does not imply that one model is better. Browse model comparisons →