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About

GLM-4.7 FlashX is a lightweight, high-speed version of the GLM-4.7 large language model created by Z.ai that balances efficiency and performance for real-time AI tasks across English and Chinese while offering the core capabilities of the broader GLM-4.7 family in a more resource-friendly package. It is positioned alongside GLM-4.7 and GLM-4.7 Flash, delivering optimized agentic coding and general language understanding with faster response times and lower resource needs, making it suitable for applications that require rapid inference without heavy infrastructure. As part of the GLM-4.7 model series, it inherits the model’s strengths in programming, multi-step reasoning, and robust conversational understanding, and it supports long contexts for complex tasks while remaining lightweight enough for deployment with constrained compute budgets.

About

Step 3.5 Flash is an advanced open source foundation language model engineered for frontier reasoning and agentic capabilities with exceptional efficiency, built on a sparse Mixture of Experts (MoE) architecture that selectively activates only about 11 billion of its ~196 billion parameters per token to deliver high-density intelligence and real-time responsiveness. Its 3-way Multi-Token Prediction (MTP-3) enables generation throughput in the hundreds of tokens per second for complex multi-step reasoning chains and task execution, and it supports efficient long contexts with a hybrid sliding window attention approach that reduces computational overhead across large datasets or codebases. It demonstrates robust performance on benchmarks for reasoning, coding, and agentic tasks, rivaling or exceeding many larger proprietary models, and includes a scalable reinforcement learning framework for consistent self-improvement.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

AI engineers and teams building AI applications who need a lightweight, efficient variant of a high-performance large language model for fast, scalable text generation and coding tasks

Audience

Developers, researchers, and AI engineers who want a powerful open source foundational AI model capable of fast, deep reasoning, coding assistance, and agentic task execution

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

$0.07 per 1M tokens
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Z.ai
Founded: 2019
China
docs.z.ai/guides/llm/glm-4.7#glm-4-7-flashx

Company Information

StepFun
Founded: 2023
China
static.stepfun.com/blog/step-3.5-flash/

Alternatives

Claude Sonnet 5

Claude Sonnet 5

Anthropic

Alternatives

MiMo-V2-Flash

MiMo-V2-Flash

Xiaomi Technology
GLM-4.5

GLM-4.5

Z.ai
GLM-4.5V-Flash

GLM-4.5V-Flash

Zhipu AI
DeepSeek-V2

DeepSeek-V2

DeepSeek
MiMo-V2-Flash

MiMo-V2-Flash

Xiaomi Technology
Falcon 3

Falcon 3

Technology Innovation Institute (TII)
Kimi K2

Kimi K2

Moonshot AI

Categories

Categories

Integrations

GitHub
Hugging Face
ModelScope
arXiv

Integrations

GitHub
Hugging Face
ModelScope
arXiv
Claim GLM-4.7-FlashX and update features and information
Claim GLM-4.7-FlashX and update features and information
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Claim Step 3.5 Flash and update features and information