GLM 5.3 Flash
z-ai/glm-5.3-flash- Z.ai
- Family · GLM 5 Flash
- Released 26 Aug 2026
- Text · Image · Video → Text
- Reasoning · adjustable
- Tools · JSON · Vision
Spec & list price
Context1M
Max output128K
Input / 1M$0.03
Output / 1M$0.093.2× input
Scores · standing
Intelligence41.8#29/489
LiveBench62.1#21/32
Coding71.5#21/196
Usage
Tokens / day1.4T▲ 11% 7d
Usage rank#3
Requests / day53.2M
Tool calls / req0.21
Per request · 30 days
Avg input18.8K1.3× median
Avg output7611.1× median
Cache hit81%1.2× median
Reasoning share32%0.6× median
Tool-call failures1.3%0.7× median
Consumption
Peak 2.7T 30 OctLow 1.0T 27 SepRank today #3
News & trends
59 mentions this week ▲ 195%this model · videos, posts, articles · 30 days
Trending · 14 days
- Free Daily AI API Key! GLM-5.3 Flash + DeepSeek V4.1 Flash18.7K views
- DRAM 128GB로도 부족했다: 192GB로 Poly Stara·Project Maya·Xolotl + GLM 5.3 Flash · Deepseek V4.1 Flash 101716.7K views
- We just got new local model called Nanbeige4.3-33B clearly beating Qwen3.8 27B, which is GPT Luna 6 at home, reaching close to GLM 5.3 Flash.234 upvotes
- "TOP 10 UNCENSORED AI MODELS YOU SHOULD KNOW here are 10 worth checking out: 1. GLM-5.3 Uncensored 2. GLM-5.3 Flash Abliterated 3. DeepSeek V4.1 Flash 1017 Uncensored 4. DeepSeek V4.1 Flash 1017 Uncensored GGUF 5. Qwen3.8-27B Abliterated 6. Huihui Qwen3.8-27B Abliterated 7. Qwen3.8-27B Heretic..."403 upvotes
News
- sglang v0.5.22SGLang · 19 Oct
- vllm v0.32.0vLLM · 18 Oct
- ReplaySSM: Rethinking State Storage for Faster Hybrid-Model DecodingNVIDIA · 12 Oct
- sglang v0.5.21SGLang · 2 Oct
Benchmarks
bar = share of the top score · Benchmark data: Artificial AnalysisSpeed · median across 40 providers, latest day
Output speed#112/33486 tok/s1.3× faster than median
Fastest provider168 tok/sbest of 40 providers
First token#1240.78 s1.3× quicker than median
First answer token#7730 sthinking included
Best value in its score band
Value
Intelligence Index
Blended price per 1M tokens (log)
LiveBench suites
Browser59.8
Coding80.6
Data Analysis76.4
Design77.2
Long Agentic19.0
Reasoning77.6
Research70.1
▲ Strongest: Coding, Reasoning. ▼ Weakest: Long Agentic (19).
Technical details
- Reasoning
- on · max
- Tokenizer
- Other
- License
- MIT
- Moderation
- none
- Downloads · likes
- 6.3M · 3.0K
Reasoning effort
- max · default
- high
- low
Request parameters 21
- tools
- tool_choice
- parallel_tool_calls
- response_format
- structured_outputs
- reasoning
- reasoning_effort
- include_reasoning
- temperature
- top_p
+11 more
- top_k
- min_p
- max_tokens
- stop
- seed
- frequency_penalty
- logit_bias
- logprobs
- presence_penalty
- repetition_penalty
- top_logprobs
When to use
Best for
- Low-cost multimodal agents
- Browser and web-task automation
- Coding help with tool calling
- Image and video understanding in apps
Think twice for
- Long autonomous agent runs
- Hardest reasoning tasks
- Self-hosting (weights not confirmed open)
Research papers
- Reva: Real-Time Vulnerability Detection through Contextual Probing of Large Language Models26 Oct
- A Multi-Domain Study on the Effectiveness of LLMs at Writing Property-Based Tests25 Oct
- S$^2$-MAS: A Society-Scale Multi-Agent Simulation Framework with 500 Million Household Persona Agents20 Oct
- HABIT-Bench: Evaluating Habit Induction from Longitudinal Weak Evidence in Agent Memory17 Oct
- From Unreliable to Usable: Decomposing Failure Modes and Confidence Signals in LLM Entity Extraction - Evidence from Cyber Threat Intelligence14 Oct
- Getting Space Right: Agentic Rewards for Image Generation10 Oct
- LongHarness: Advancing Agentic Reasoning over 100M-Token Corpora via Stateful Evidence Management9 Oct
- REMORY: Learning Residual Memory for Context Compaction8 Oct
Same family
GLM 5 FlashAlternatives
other vendors · similar capability- 39.5
- I43.9
- 39.8
- 38.4
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