Z.ai
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.
At a glance
- Input / 1M
- $0.04
- Output / 1M
- $7
- Context
- 1.05M
- Max output
- 944K
- Intelligence
- 44.8
- Released
- Aug 2026
Pricing
GLM 5.3 API pricing
Per-token rates, plus what common tasks actually cost.
| Input tokensPer 1M tokens | $0.04 |
|---|---|
| Output tokensPer 1M tokens | $7 |
| Cached input (read)Per 1M tokens | $0.04 |
| Cache writePer 1M tokens | Not available |
Chat message
2K in, 500 out
$3.58
per 1,000 requests
Coding task
30K in, 4K out
$29.20
per 1,000 requests
Long document summary
150K in, 2K out
$20
per 1,000 requests
Benchmarks
GLM 5.3 benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
44.8
Coding index
74.8
Agentic index
53.1
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
- Text
- Output types
- Text
- Reasoning effort
- Max, High, Low
- Release date
- August 18, 2026
- Tool calling
- Structured outputs
- JSON mode
- Reasoning
- Temperature
- Stop sequences
- Deterministic seed
- Verbosity control
Compare
GLM 5.3 vs other models
See how GLM 5.3 stacks up head to head on price, benchmarks, and features.
GLM 5.3 vs DeepSeek V4.1 Flash
Z.ai vs DeepSeek
See comparisonGLM 5.3 vs GLM 5.3 Flash
Z.ai vs Z.ai
See comparisonGLM 5.3 vs MiMo-V2.6-Flash
Z.ai vs Xiaomi
See comparisonGLM 5.3 vs Hy4 preview
Z.ai vs Tencent
See comparison
GLM 5.3 vs GPT-6 Luna
Z.ai vs OpenAI
See comparison
GLM 5.3 vs Claude Opus 5.5
Z.ai vs Anthropic
See comparisonMore GLM 5.3 comparisons
- GLM 5.3 vs DeepSeek V4 Flash 0731
- GLM 5.3 vs Claude Sonnet 5.5
- GLM 5.3 vs GPT-6 Astra
- GLM 5.3 vs DeepSeek V4 Flash 0423
- GLM 5.3 vs GPT-6.1 Sol
- GLM 5.3 vs Step 5 Preview
- GLM 5.3 vs Gemini 3.8 Flash
- GLM 5.3 vs Hy3
- GLM 5.3 vs Muse Spark 1.3
- GLM 5.3 vs GPT-6 Sol
- GLM 5.3 vs Kimi K3
- GLM 5.3 vs GPT-5.6 Sol
- GLM 5.3 vs Grok 4.7
- GLM 5.3 vs MiMo-V2.6-Pro
- GLM 5.3 vs Qwen3.8 Max (0902)
- GLM 5.3 vs GLM 5.2
- GLM 5.3 vs Grok 4.6
- GLM 5.3 vs Claude Haiku 5.5
- GLM 5.3 vs GPT-5.6 Terra
- GLM 5.3 vs Claude Opus 4.8
- GLM 5.3 vs Ling 3.1 Flash
- GLM 5.3 vs Claude Opus 4.7
- GLM 5.3 vs Qwen3.8 2.4T A95B
- GLM 5.3 vs Gemini 3.7 Flash
- GLM 5.3 vs Muse Spark 1.2
- GLM 5.3 vs Grok 4.5
Alternatives
GLM 5.3 alternatives
Similar models worth considering, and where each one has the edge.
OpenAI
GPT-6 Sol
OpenAI
GPT-5.6 Sol
xAI
Grok 4.7
Want to learn about other models? Browse all models
FAQ
Frequently asked questions
How much does GLM 5.3 cost?
GLM 5.3 costs $0.04 per 1M input tokens and $7 per 1M output tokens through the API. A typical chat message costs about $3.58 per 1,000 messages.
What is the context window of GLM 5.3?
GLM 5.3 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?
GPT-6 Sol from OpenAI is a strong alternative. It offers: higher intelligence score, larger 1.05m context, accepts file and image.
Can I use GLM 5.3 alongside other models?
Yes. Shortcut Chat sends one prompt to GLM 5.3 and any other models you pick at the same time, so you can compare answers side by side.
Try GLM 5.3 next to every other model.
Use GLM 5.3 alongside all the other models. Use one at a time, or multiple together. Get the best answer from every AI.