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Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Description

Composer 1.5 is the newest agentic coding model from Cursor that enhances both speed and intelligence for routine coding tasks, achieving a remarkable 20-fold increase in reinforcement learning capabilities compared to its earlier version, which translates to improved performance on real-world programming problems. This model is crafted as a "thinking model," generating internal reasoning tokens that facilitate the analysis of a user's codebase and the planning of subsequent actions, enabling swift responses to straightforward issues while engaging in more profound reasoning for intricate challenges. Additionally, it maintains interactivity and efficiency, making it ideal for daily development processes. To address prolonged tasks, Composer 1.5 features self-summarization, which allows the model to condense information and retain context when it hits limits, thus preserving accuracy across a variety of input lengths. Internal evaluations indicate that Composer 1.5 outperforms its predecessor in coding tasks, particularly excelling in tackling more complex problems, further enhancing its utility for interactive applications within Cursor's ecosystem. Overall, this model represents a significant advancement in coding assistance technology, promising to streamline the development experience for users.

Description

GPT-5.3-Codex is a next-generation AI agent built to expand Codex beyond code writing into full-spectrum professional execution. It unifies advanced coding intelligence with reasoning, planning, and computer-use capabilities. The model delivers faster performance while handling more complex workflows across development environments. GPT-5.3-Codex can autonomously iterate on large projects while remaining interactive and steerable. It supports tasks such as debugging, deployment, performance optimization, and system monitoring. The model demonstrates state-of-the-art results across real-world coding benchmarks. It also excels at web development, generating production-ready applications from minimal prompts. GPT-5.3-Codex understands intent more effectively, producing stronger default designs and functionality. Its agentic nature allows it to operate like a collaborative teammate. This makes it suitable for both individual developers and large teams.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

Cursor
Buda
C++
Elixir
GitHub Copilot
HTML
Java
JavaScript
JetBrains Junie
Laravel
Microsoft Foundry
OpenAI
PHP
PrivatClaw
Python
R
SQL
TypeScript
Visual Basic
Windsurf Editor

Integrations

Cursor
Buda
C++
Elixir
GitHub Copilot
HTML
Java
JavaScript
JetBrains Junie
Laravel
Microsoft Foundry
OpenAI
PHP
PrivatClaw
Python
R
SQL
TypeScript
Visual Basic
Windsurf Editor

Pricing Details

No price information available.
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

2023

Country

United States

Website

cursor.com/blog/composer-1-5

Vendor Details

Company Name

OpenAI

Founded

2015

Country

United States

Website

openai.com

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