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Description
Cursor has introduced Composer 2.5, a next-generation AI coding assistant built to deliver stronger reasoning, better collaboration, and improved reliability during software development tasks. The upgraded model performs better on long-running coding workflows and can manage complicated instructions with greater consistency than earlier Composer versions. Cursor expanded the training process by scaling compute resources, generating more advanced reinforcement learning environments, and refining behavioral traits that improve the developer experience. One of the key innovations in Composer 2.5 is its targeted textual feedback system, which helps the model learn from localized mistakes inside long coding trajectories instead of relying only on broad reward signals. This training method allows the AI to improve coding style, communication quality, and tool usage accuracy in a more focused way. The company also increased the amount of synthetic coding data by 25 times compared to Composer 2, giving the model exposure to more difficult and realistic programming tasks. During development, the system demonstrated sophisticated reasoning abilities by uncovering hidden implementation details and reverse-engineering deleted functionality inside synthetic environments. Composer 2.5 additionally uses advanced distributed training methods such as Sharded Muon and dual mesh HSDP to optimize large-scale model training performance. Available directly inside Cursor, the model comes in both standard and fast variants with different pricing tiers designed for developers, teams, and enterprise-scale engineering workflows.
Description
Qwen3.8-27B is a newly announced 27-billion-parameter model from Alibaba’s Qwen3.8 series, designed as a more compact open-weight alternative to the significantly larger Qwen3.8-Max. The Qwen3.8 generation represents a cutting-edge family of models aimed at enhancing coding capabilities, performing agentic tasks, achieving multimodal comprehension, and managing prolonged autonomous operations. The introduction of the 27B variant aims to provide a size that facilitates more practical local deployment, hands-on experimentation, fine-tuning, and smoother integration into developers' workflows. Qwen has confirmed that this model will be released with open weights, thereby enriching the company’s collection of downloadable mid-sized models tailored for users seeking direct control over their inference and deployment processes. At the time of its announcement, however, Qwen had yet to provide essential information such as the model card, benchmark metrics, architectural specifics, context length, quantization methods, or comprehensive deployment instructions for the 27B version. This lack of detailed guidance raises questions among potential users eager to explore the model's capabilities.
API Access
Has API
API Access
Has API
Integrations
Python
Bash
CSS
Dart
Go
HTML
Hugging Face
Kotlin
Model Context Protocol (MCP)
Novita AI
Integrations
Python
Bash
CSS
Dart
Go
HTML
Hugging Face
Kotlin
Model Context Protocol (MCP)
Novita AI
Pricing Details
$0.50/M input
$0.50/M input and $2.50/M output tokens
Free Trial
Free Version
Pricing Details
No price information available.
Free Trial
Free Version
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Deployment
Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Customer Support
Business Hours
Live Rep (24/7)
Online Support
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Types of Training
Training Docs
Webinars
Live Training (Online)
In Person
Vendor Details
Company Name
Cursor
Founded
2022
Country
United States
Website
cursor.com
Vendor Details
Company Name
Alibaba
Founded
1999
Country
China
Website
qwen.ai