Z.AI: GLM 5.2 Fast
z-ai/glm-5.2-fast
GLM-5.2-Fast-Preview is the high-speed version of Zhipu AI’s flagship model, GLM-5.2. It supports an ultra-long context window of 1 million tokens and matches the capabilities of the standard GLM-5.2 edition, excelling in logical reasoning, long-text comprehension, and code generation. Through inference acceleration optimizations, its output throughput (TPS) reaches 1.5 to 2 times that of the standard version, significantly boosting output speed. It is ideally suited for scenarios where speed is critical, such as real-time conversations, multi-turn agent interactions, and streaming code generation.
Model specifications
- Input
- text
- Output
- text
- Context
- 1,000,000 tokens
- Max output
- 128,000 tokens
- Input price
- $2.8 / 1M tokens
- Output price
- $8.8 / 1M tokens
- Released
- 2026-07-20
Capabilities
- Streaming
- Function calling
- Vision
- JSON mode
Provider pricing, discounts and data privacy
Compare effective provider prices, published discounts, regions, retention policies, training use, compliance, and privacy links by service tier.
Flex service tier
1 available provider · tier input average $2.29 / 1M tokens · tier output average $8 / 1M tokens
Alibaba Cloud Int.(CN)
Tier: Flex · Region: CN
Pricing
- Input
- $2.29 / 1M tokens
- Output
- $8 / 1M tokens
- Cache read
- $0.01 / 1M tokens
No provider discount is currently published.
Data privacy and compliance
- Region
- CN
- Zero data retention
- No
- Data retention
- 60-day retention
- Used for training
- No
- Data collection
- Moderated
- No
- GDPR compliant
- Yes
- HIPAA compliant
- No
- SOC 2 certified
- Yes
- BYOK supported
- Yes
Privacy policy · Terms · Official website · Documentation · Status · Support
Standard service tier
1 available provider · tier input average $2.8 / 1M tokens · tier output average $8.8 / 1M tokens
Alibaba Cloud Int.(SG)
Tier: Standard · Region: SG
Pricing
- Input
- $2.8 / 1M tokens
- Output
- $8.8 / 1M tokens
- Cache read
- $0.56 / 1M tokens
No provider discount is currently published.
Data privacy and compliance
- Region
- SG
- Zero data retention
- Yes
- Data retention
- 30-day retention
- Used for training
- No
- Data collection
- Moderated
- No
- GDPR compliant
- Yes
- HIPAA compliant
- No
- SOC 2 certified
- Yes
- BYOK supported
- Yes
Privacy policy · Terms · Official website · Documentation · Status · Support
Frequently asked questions
- What is Z.AI: GLM 5.2 Fast?
- GLM-5.2-Fast-Preview is the high-speed version of Zhipu AI’s flagship model, GLM-5.2. It supports an ultra-long context window of 1 million tokens and matches the capabilities of the standard GLM-5.2 edition, excelling in logical reasoning, long-text comprehension, and code generation. Through inference acceleration optimizations, its output throughput (TPS) reaches 1.5 to 2 times that of the standard version, significantly boosting output speed. It is ideally suited for scenarios where speed is critical, such as real-time conversations, multi-turn agent interactions, and streaming code generation.
- How much does Z.AI: GLM 5.2 Fast cost?
- Input costs start at $2.8 / 1M tokens and output costs start at $8.8 / 1M tokens. Provider-level prices vary by service tier.
- What is the context length of Z.AI: GLM 5.2 Fast?
- Z.AI: GLM 5.2 Fast supports a 1,000,000 token context window and up to 128,000 output tokens.
- What capabilities does Z.AI: GLM 5.2 Fast support?
- Z.AI: GLM 5.2 Fast supports Streaming, Function calling, Vision, JSON mode.
- Which providers offer Z.AI: GLM 5.2 Fast?
- Z.AI: GLM 5.2 Fast is available from Alibaba Cloud Int.(CN), Alibaba Cloud Int.(SG).
- How do providers handle data privacy for Z.AI: GLM 5.2 Fast?
- 2 of 2 providers report that customer data is not used for training, and 1 offer zero-data-retention routing. Retention, compliance, and privacy-policy links are listed per provider.