GPT‑5.3‑Codex‑SparkOpenAI
|
||||||
Related Products
|
||||||
About
GPT-5.3-Codex-Spark is an ultra-fast coding model designed for real-time collaboration inside Codex. Built as a smaller version of GPT-5.3-Codex, it delivers over 1000 tokens per second when served on low-latency Cerebras hardware. The model is optimized for interactive coding tasks, enabling developers to make targeted edits and see results almost instantly. With a 128k context window, Codex-Spark supports substantial project context while maintaining speed. It focuses on lightweight, precise edits and does not automatically run tests unless prompted. Infrastructure upgrades such as persistent WebSocket connections significantly reduce latency across the full request-response pipeline. Released as a research preview for ChatGPT Pro users, Codex-Spark marks the first milestone in OpenAI’s partnership with Cerebras.
|
About
SparkBuilt helps founders escape blank canvas paralysis. It automates the first two weeks of dev so you can turn ideas into deployable web apps in few minutes.
It generates full stack code (React, Vite, Tailwind, Convex, Clerk), AI pitch slides, market analysis, and a ready tech stack you can export to GitHub. Perfect for workers validating ideas, founders pitching fast, hackathon teams, and students.
Stop stitching together fragmented tools. Most founders burn runway paying for separate UI builders, deck generators, and research tools before they even launch. SparkBuilt is the first Unified Venture Engine that builds your Product (Full-Stack MVP), Narrative (Investor Deck), and Strategy (Market Research) simultaneously from a single shared context.
True Ownership, No Lock-In. We don't hold your code hostage. Unlike "walled garden" builders, SparkBuilt lets you Export to GitHub or Deploy to your own Vercel account instantly. You own the code, the keys, and the IP from Day 1.
|
|||||
Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
|
Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
|
|||||
Audience
Software developers, engineering teams, and AI-powered coding tool builders seeking ultra-low-latency, real-time code generation and iterative collaboration within the Codex ecosystem
|
Audience
Early-stage founders, students, anyone
|
|||||
Support
Phone Support
24/7 Live Support
Online
|
Support
Phone Support
24/7 Live Support
Online
|
|||||
API
Offers API
|
API
Offers API
|
|||||
Screenshots and Videos |
Screenshots and Videos |
|||||
Pricing
No information available.
Free Version
Free Trial
|
Pricing
$49
Launch promo (standard price - $199)
Free Version
Free Trial
|
|||||
Reviews/
|
Reviews/
|
|||||
Training
Documentation
Webinars
Live Online
In Person
|
Training
Documentation
Webinars
Live Online
In Person
|
|||||
Company InformationOpenAI
Founded: 2015
United States
openai.com
|
Company InformationSparkBuilt
Founded: 2025
United States
sparkbuilt.dev
|
|||||
Alternatives |
Alternatives |
|||||
|
|
||||||
|
|
|
|||||
|
|
||||||
|
|
||||||
Categories |
Categories |
|||||
Integrations
Codex CLI
Codex Security
Convex
Microsoft Foundry
OpenAI
OpenAI Codex
OpenClaw
|
Integrations
Codex CLI
Codex Security
Convex
Microsoft Foundry
OpenAI
OpenAI Codex
OpenClaw
|
|||||
|
|
|