Ratings and Reviews 1 Rating

Total
ease
features
design

Ratings and Reviews 0 Ratings

Total
ease
features
design
support

This software has no reviews. Be the first to write a review.

Write a Review

Alternatives to Consider

  • Gemini Enterprise Agent Platform Reviews & Ratings
    999 Ratings
    Company Website
  • Google AI Studio Reviews & Ratings
    30 Ratings
    Company Website
  • LM-Kit.NET Reviews & Ratings
    29 Ratings
    Company Website
  • Innoslate Reviews & Ratings
    93 Ratings
    Company Website
  • Evertune Reviews & Ratings
    1 Rating
    Company Website
  • Planview Software Product Delivery Reviews & Ratings
    2 Ratings
    Company Website
  • LTX Reviews & Ratings
    182 Ratings
    Company Website
  • Coevera Reviews & Ratings
    752 Ratings
    Company Website
  • Macaw AMS Reviews & Ratings
    8 Ratings
    Company Website
  • Passwork Reviews & Ratings
    126 Ratings
    Company Website

What is GPT-5.6 Luna?

GPT-5.6 Luna is the lowest-cost model in OpenAI’s GPT-5.6 family, built for fast and affordable AI assistance across everyday and technical workflows. The GPT-5.6 lineup includes Sol as the flagship model, Terra as the balanced model for everyday work, and Luna as the efficient model for users who need strong capability at lower cost. Luna is intended for developers, businesses, and teams that need scalable AI for coding help, workflow automation, research support, analysis, customer-facing applications, and high-volume API usage. In the pasted preview text, Luna is presented as part of the same GPT-5.6 release process and benchmark set as Sol and Terra. It appears in evaluations for command-line coding workflows, long-horizon biology tasks, ExploitBench, and ExploitGym, indicating that it is designed to handle more than simple chat use cases. The model is priced at a lower per-token rate than Sol and Terra, making it more suitable for applications where cost efficiency is a major priority. GPT-5.6 Luna also supports the new GPT-5.6 prompt caching approach, including explicit cache breakpoints, a 30-minute minimum cache life, cache writes billed above the uncached input rate, and discounted cached-input reads. Like the rest of the GPT-5.6 family, Luna is developed with layered safeguards matched to model capability. These safeguards include trained refusals for prohibited cyber assistance, real-time misuse classifiers, paused generation for higher-risk cases, account-level review, monitoring, enforcement, automated red-teaming, and third-party human expert red-teaming. Luna is expected to support legitimate defensive and technical workflows such as code review, debugging, patch development, security education, and defensive testing while making prohibited misuse more difficult and detectable. GPT-5.6 Luna helps organizations deploy GPT-5.6-class AI where speed, affordability, scalability, and safe production use are the most important requirements.

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.

Media

Media

Integrations Supported

Codex CLI
Codex Security
Microsoft Foundry
OpenAI
OpenAI Codex
OpenClaw
C
ChatGPT Plus
ChatGPT Pro
Dart
Flowise
GPT-5.1-Codex
Hermes Agent
Kotlin
Microsoft Excel
Node.js
SpawnHQ
TypeScript
Xcode
Yonoo

Integrations Supported

Codex CLI
Codex Security
Microsoft Foundry
OpenAI
OpenAI Codex
OpenClaw
C
ChatGPT Plus
ChatGPT Pro
Dart
Flowise
GPT-5.1-Codex
Hermes Agent
Kotlin
Microsoft Excel
Node.js
SpawnHQ
TypeScript
Xcode
Yonoo

API Availability

Has API

API Availability

Has API

Pricing Information

$0.20 per 1M tokens (input)
$0.20 input / $1.20 output per 1 million tokens
Free Version
Free Trial Offered?

Pricing Information

Pricing not provided
Free Version
Free Trial Offered?

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

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com

Popular Alternatives

Grok 4.6 Reviews & Ratings

Grok 4.6

SpaceXAI

Popular Alternatives

Claude Opus 4.5 Reviews & Ratings

Claude Opus 4.5

Anthropic
Claude Opus 5 Reviews & Ratings

Claude Opus 5

Anthropic
Claude Opus 4.6 Reviews & Ratings

Claude Opus 4.6

Anthropic
Claude Fable 5 Reviews & Ratings

Claude Fable 5

Anthropic