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What is GPT‑5.3‑Codex‑Spark?

GPT-5.3-Codex-Spark is a specialized, ultra-fast coding model designed to enable real-time collaboration within the Codex platform. As a streamlined variant of GPT-5.3-Codex, it prioritizes latency-sensitive workflows where immediate responsiveness is critical. When deployed on Cerebras’ Wafer Scale Engine 3 hardware, Codex-Spark delivers more than 1000 tokens per second, dramatically accelerating interactive development sessions. The model supports a 128k context window, allowing developers to maintain broad project awareness while iterating quickly. It is optimized for making minimal, precise edits and refining logic or interfaces without automatically executing additional steps unless instructed. OpenAI implemented extensive infrastructure upgrades—including persistent WebSocket connections and inference stack rewrites—to reduce time-to-first-token by 50% and cut client-server overhead by up to 80%. On software engineering benchmarks such as SWE-Bench Pro and Terminal-Bench 2.0, Codex-Spark demonstrates strong capability while completing tasks in a fraction of the time required by larger models. During the research preview, usage is governed by separate rate limits and may be queued during peak demand. Codex-Spark is available to ChatGPT Pro users through the Codex app, CLI, and VS Code extension, with API access for select design partners. The model incorporates the same safety and preparedness evaluations as OpenAI’s mainline systems. This release signals a shift toward dual-mode coding systems that combine rapid interactive loops with delegated long-running tasks. By tightening the iteration cycle between idea and execution, GPT-5.3-Codex-Spark expands what developers can build in real time.

What is Code Snippets AI?

Easily convert your questions into code while having the ability to save and access your snippets without hassle. Work collaboratively with your colleagues by harnessing the capabilities of ChatGPT alongside our enhanced GPT-3 model. Deepen your understanding of programming concepts to broaden your skills. Elevate your coding quality utilizing our sophisticated refactoring and debugging features. Share your code snippets with your team securely, ensuring their original formatting is intact. The integration of ChatGPT with our optimized GPT-3 model provides faster and more accurate responses to your inquiries than conventional Codex tools. Create documentation, refactor, debug, and write code at the click of a button. With our dedicated VSCode extension, saving code from your integrated development environment to your personal library becomes a breeze. You can categorize your snippets by language, title, or folder while tailoring your folder organization to suit your needs. Our platform combines the strengths of ChatGPT and our specialized GPT-3 model, delivering unparalleled speed and precision in addressing your coding questions. Furthermore, the intuitive design of our interface enhances your coding experience, promoting a more efficient workflow, which ultimately empowers you to tackle complex projects with confidence.

Media

Media

Integrations Supported

OpenAI
ChatGPT
Codex CLI
GPT-3
GPT-4
Microsoft Foundry
OpenAI Codex
Visual Studio Code

Integrations Supported

OpenAI
ChatGPT
Codex CLI
GPT-3
GPT-4
Microsoft Foundry
OpenAI Codex
Visual Studio Code

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

$2 per month
Free Trial Offered?
Free Version

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

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com

Company Facts

Organization Name

Code Snippets AI

Company Location

United States

Company Website

codesnippets.ai/

Categories and Features

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