GPT‑5.3‑Codex‑SparkOpenAI
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Related Products
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About
Backgrind is an overlay window for AI coding agents, built for vibe coders and pro developers on macOS and Windows. It puts Claude Code, Cursor, or its hosted Grindy model in an always-on-top window that floats over whatever you are doing, so you can fire off a task, go build or play, and only get tapped when the agent actually needs you. Backgrind works as a thin frontend over the CLI you already use, keeping your login, history, hooks, and workflow intact while floating over your editor, browser, docs, or even a borderless full-screen game. The window can be dragged, stretched, recolored, faded through, summoned with a hotkey, or switched into click-through glance mode so your clicks and keystrokes pass straight to what is underneath. It flashes and chimes only when your agent needs approval, asks a question, or finishes. Backgrind also acts like a real mini-IDE, with a file tree, syntax-highlighted previews, rendered Markdown, and clickable file links.
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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.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Context-switching developers who want their AI coding agents to keep working in the background while they stay focused elsewhere
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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
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$7.50 per month
Free Version
Free Trial
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Pricing
No information available.
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationBackgrind
Founded: 2026
United States
backgrind.com
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Company InformationOpenAI
Founded: 2015
United States
openai.com
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Categories |
Categories |
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Integrations
Claude Code
Codex CLI
Codex Security
Cursor
Microsoft Foundry
OpenAI
OpenAI Codex
OpenClaw
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Integrations
Claude Code
Codex CLI
Codex Security
Cursor
Microsoft Foundry
OpenAI
OpenAI Codex
OpenClaw
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