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Average Ratings 0 Ratings

Total
ease
features
design
support

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Write a Review

Description

GPT-5.3-Codex-Spark is OpenAI’s first model purpose-built for real-time coding within the Codex ecosystem. Engineered for ultra-low latency, it can generate more than 1000 tokens per second when running on Cerebras’ Wafer Scale Engine hardware. Unlike larger frontier models designed for long-running autonomous tasks, Codex-Spark specializes in rapid iteration, targeted edits, and immediate feedback loops. Developers can interrupt, redirect, and refine outputs interactively, making it ideal for collaborative coding sessions. The model features a 128k context window and is currently text-only during its research preview phase. End-to-end latency improvements—including WebSocket streaming and inference stack optimizations—reduce time-to-first-token by 50% and overall roundtrip overhead by up to 80%. Codex-Spark performs strongly on benchmarks such as SWE-Bench Pro and Terminal-Bench 2.0 while completing tasks significantly faster than its larger counterpart. It is available to ChatGPT Pro users in the Codex app, CLI, and VS Code extension with separate rate limits during preview. The model maintains OpenAI’s standard safety training and evaluation protocols. Codex-Spark represents the beginning of a dual-mode Codex future that blends real-time interaction with long-horizon reasoning capabilities.

Description

SparkBuilt assists entrepreneurs in overcoming the daunting challenge of starting from scratch. By automating the initial two weeks of development, it enables you to transform concepts into fully functional web applications within minutes. The platform produces comprehensive full-stack code utilizing technologies such as React, Vite, Tailwind, Convex, and Clerk, along with AI-generated pitch slides and market analysis. It also provides a complete tech stack that can be easily exported to GitHub. This tool is ideal for individuals testing out ideas, founders needing to pitch quickly, teams participating in hackathons, and students seeking to streamline their projects. With SparkBuilt, innovation becomes more accessible and efficient for everyone involved.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

Codex CLI
Codex Security
Convex
Microsoft Foundry
OpenAI
OpenAI Codex
OpenClaw

Integrations

Codex CLI
Codex Security
Convex
Microsoft Foundry
OpenAI
OpenAI Codex
OpenClaw

Pricing Details

No price information available.
Free Trial
Free Version

Pricing Details

$49
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

OpenAI

Founded

2015

Country

United States

Website

openai.com

Vendor Details

Company Name

SparkBuilt

Founded

2025

Country

United States

Website

sparkbuilt.dev

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