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What is Step 5 Preview?

Step 5 Preview epitomizes the apex of StepFun’s offerings for agentic tasks, specifically designed for practical applications in the realms of software engineering and professional knowledge, with particular excellence in financial settings. This model is adept at processing text, images, and videos, featuring an impressive 1M-token context window that suits tasks requiring extensive data, tool utilization, and continuous advancement toward specific objectives. It can effectively analyze extensive documents, amalgamate information from diverse sources, and leverage conversation threads for efficient cross-document queries and research organization. In the field of programming and software development, it showcases proficiency in a range of programming languages, assisting with debugging, code adjustments, verification tasks, and test generation. Moreover, its sophisticated multi-step agent capabilities allow applications to leverage tools for information retrieval, document analysis, detailed research, and the development of analytical reports. The model's multimodal understanding enables it to integrate images, videos, and text, facilitating tasks like chart analysis and responding to queries based on screenshots. This extensive suite of capabilities not only enhances productivity but also solidifies Step 5 Preview as an essential tool for professionals across a multitude of industries, ensuring they remain at the forefront of their respective fields.

What is Qwen3.8-Max?

Qwen3.8-Max is a large-scale AI model from Qwen built for coding, coworking, research, long-horizon planning, and multimodal agent workflows. It is positioned as the most capable model in the Qwen family to date, with open weights announced for release after launch. The model uses a 2.4 trillion-parameter architecture with 95 billion active parameters and is available through QwenCloud. Qwen3.8-Max is designed to complete complex, open-ended goals end to end rather than only answer isolated prompts. In coding workflows, it can write and run code, create self-evolving harnesses, normalize requirements into issues, execute tasks through agents, run tests, trigger CI checks, and iterate through feedback. Its autonomous coding examples include a 10+ day project run, a research-paper reproduction and improvement loop, and a 24-hour online competition solution that beat most participating human teams. For professional work, Qwen3.8-Max is built to handle multi-step, tool-heavy workflows across compliance, design, food operations, engineering, rehabilitation, sports analytics, and quantitative research. The model also supports long-horizon decision-making, including autonomous chip-design optimization and extended e-commerce operations simulations. Its multimodal capabilities cover images, complex PDFs, long videos, visual production, interface inspection, frontend reconstruction, Blender visualization, interactive applications, and visual feedback loops. Qwen3.8-Max can be integrated through QwenCloud APIs and used with agent frameworks or coding assistants such as Claude Code, Codex, Qoder CLI, Qwen Code, and OpenClaw. By combining agentic coding, reasoning controls, multimodal understanding, visual self-correction, long-context workflows, tool use, and open-weight availability, Qwen3.8-Max helps developers and organizations build autonomous AI systems that can produce dependable deliverables.

Media

Media

Integrations Supported

Alibaba Cloud
Alibaba Cloud Model Studio
Cherry Studio
Cline
ClinePass
Happy Shrimp 1.0
Hermes Agent
Hugging Face
Model Context Protocol (MCP)
ModelScope
Novita AI
Odysseus
OfoxAI
OpenClaw
Python
Qwen
Qwen Code
Qwen Studio
QwenCloud
QwenWork

Integrations Supported

Alibaba Cloud
Alibaba Cloud Model Studio
Cherry Studio
Cline
ClinePass
Happy Shrimp 1.0
Hermes Agent
Hugging Face
Model Context Protocol (MCP)
ModelScope
Novita AI
Odysseus
OfoxAI
OpenClaw
Python
Qwen
Qwen Code
Qwen Studio
QwenCloud
QwenWork

API Availability

Has API

API Availability

Has API

Pricing Information

$0.04 per input
Free Version
Free Trial Offered?

Pricing Information

$2 per 1M (input)
$2 per 1 million tokens (input), $6 per 1 million tokens (output)
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

StepFun

Date Founded

2023

Company Location

United States

Company Website

platform.stepfun.ai/docs/en/guides/models/step-5-preview

Company Facts

Organization Name

Alibaba

Date Founded

1999

Company Location

China

Company Website

qwen.ai

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