Z.ai
GLM 5.3 Flash
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks.
At a glance
- Input / 1M
- $0.15
- Output / 1M
- $0.50
- Context
- 1.05M
- Max output
- 944K
- Intelligence
- 41.8
- Released
- Aug 2026
Pricing
GLM 5.3 Flash API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $0.15 |
|---|---|
| Output tokensPer 1M tokens | $0.50 |
| Cached input (read)Per 1M tokens | $0.03 |
| Cache writePer 1M tokens | Not available |
Chat message
2K in, 500 out
$0.55
per 1,000 requests
Coding task
30K in, 4K out
$6.50
per 1,000 requests
Long document summary
150K in, 2K out
$23.50
per 1,000 requests
Benchmarks
GLM 5.3 Flash benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
41.8
Coding index
71.5
Agentic index
50.9
Specs
Context window and capabilities
What it can read, what it can write, and which API features it supports.
- Context window
- 1.05M tokens
- Max output
- 944K tokens
- Input types
- Image, Text, Video
- Output types
- Text
- Reasoning effort
- Max, High, Low
- Release date
- August 26, 2026
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
GLM 5.3 Flash vs other models
See how GLM 5.3 Flash stacks up head to head on price, benchmarks, and features.
GLM 5.3 Flash vs DeepSeek V4.1 Flash
Z.ai vs DeepSeek
See comparisonGLM 5.3 Flash vs MiMo-V2.6-Flash
Z.ai vs Xiaomi
See comparisonGLM 5.3 Flash vs Hy4 preview
Z.ai vs Tencent
See comparison
GLM 5.3 Flash vs GPT-6 Luna
Z.ai vs OpenAI
See comparisonGLM 5.3 Flash vs DeepSeek V4 Flash 0731
Z.ai vs DeepSeek
See comparison
GLM 5.3 Flash vs Claude Opus 5.5
Z.ai vs Anthropic
See comparisonMore GLM 5.3 Flash comparisons
- GLM 5.3 Flash vs GLM 5.3
- GLM 5.3 Flash vs DeepSeek V4 Flash 0423
- GLM 5.3 Flash vs Step 5 Preview
- GLM 5.3 Flash vs Gemini 3.8 Flash
- GLM 5.3 Flash vs Hy3
- GLM 5.3 Flash vs GPT-5.6 Luna
- GLM 5.3 Flash vs GPT-6.1 Sol
- GLM 5.3 Flash vs Muse Spark 1.3 Contributor
- GLM 5.3 Flash vs Claude Sonnet 5.5
- GLM 5.3 Flash vs Claude Fable 5.1
- GLM 5.3 Flash vs GPT-6 Astra
- GLM 5.3 Flash vs MiMo-V2.6-Pro
- GLM 5.3 Flash vs Claude Opus 5
- GLM 5.3 Flash vs DeepSeek V4 Pro 0813
- GLM 5.3 Flash vs Claude Haiku 5.5
- GLM 5.3 Flash vs Ling 3.1 Flash
- GLM 5.3 Flash vs GPT-6 Luna Pro
- GLM 5.3 Flash vs Gemini 3.7 Flash
- GLM 5.3 Flash vs Muse Spark 1.2
- GLM 5.3 Flash vs Qwen3.8 Flash
- GLM 5.3 Flash vs Qwen3.7 Flash
- GLM 5.3 Flash vs DeepSeek V4 Flash Vision Exp
- GLM 5.3 Flash vs Mistral Nemo
- GLM 5.3 Flash vs GLM 5.3 FlashX
- GLM 5.3 Flash vs GPT-5.6 Luna Pro
Alternatives
GLM 5.3 Flash alternatives
Similar models worth considering, and where each one has the edge.
Xiaomi
MiMo-V2.6-Pro
Z.ai
GLM 5.3
Anthropic
Claude Haiku 5.5
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does GLM 5.3 Flash cost?
GLM 5.3 Flash costs $0.15 per 1M input tokens and $0.50 per 1M output tokens through the API. A typical chat message costs about $0.55 per 1,000 messages.
What is the context window of GLM 5.3 Flash?
GLM 5.3 Flash accepts up to 1.05M tokens of input and can write up to 944K tokens in a single response.
What is the best alternative to GLM 5.3 Flash?
MiMo-V2.6-Pro from Xiaomi is a strong alternative. It offers: higher intelligence score, larger 1.05m context, accepts audio.
Can I use GLM 5.3 Flash alongside other models?
Yes. Shortcut Chat sends one prompt to GLM 5.3 Flash and any other models you pick at the same time, so you can compare answers side by side.
Try GLM 5.3 Flash next to every other model.
Use GLM 5.3 Flash alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.