GLM 5.3
Provider：Z.ai (Zhipu)
GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...
Key specs
- Context：1.3M
- Max output：131.1K
- Tokenizer：Other
- Released：2026-08-18
Token pricing
- Input price：$1.40 / 1M tokens
- Output price：$4.40 / 1M tokens
- Cache read：$0.260 / 1M tokens
- Blended price：$2.15 / 1M tokens
Modalities
Text
Use Cases
- Deep Reasoning & Analysis：Process long legal docs, academic papers, financial reports; multi-hop reasoning and evidence-chain tracing across huge contexts.（≈ $0.035/call）
- Chat & Support：FAQ auto-response, multi-turn dialogue, emotion detection — e-commerce, finance, gov.（≈ $0.0088/call）
When to pick this model
Signals derived from public pricing and spec fields — not a benchmark. Validate with official docs and your own eval.
- Long context (>=1M tokens): well-suited for long-doc QA, code-base analysis, multi-turn agents.
- Long max output (>=30K tokens): strong fit for deep report / essay / document-drafting workflows.
FAQ
- What is the token pricing of GLM 5.3? Input price $1.40 / 1M tokens, output price $4.40 / 1M tokens, blended about $2.15 / 1M tokens. Refer to Z.ai (Zhipu)’s official page for the exact rate.
- What context window does GLM 5.3 support? Context window is 1.3M, max output about 131.1K, suitable for long documents, multi-turn chat and complex reasoning.
- What scenarios is GLM 5.3 best for? Based on its capability and pricing, GLM 5.3 fits best: Deep Reasoning & Analysis, Chat & Support. See the Use Cases section for details and cost estimates.
- What input/output modalities does GLM 5.3 support? Supports Text modality.
- Is GLM 5.3 a free model? GLM 5.3 is billed per token, not a free model.
- Which provider offers GLM 5.3? GLM 5.3 is offered by Z.ai (Zhipu).
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Full info：GLM 5.3