ModelOpenAI · Joined Feb 5, 2026 · GPT-5.x

GPT-5.3-Codex-Spark

Model at OpenAI

3rd cheapest of 5 similar models by price

GPT-5.3-Codex-Spark does not have a researched profile yet. Everything here comes from its recorded changes and public listings, each linked to its source.

The basics

As of Nov 1

Status: Available
Price: $1.75 in, $14 outPer 1M tokens, since Feb 5
Context: 128K tokens
Open weights: No

Updates

Sep 14

Retired

GPT-5.3-Codex-Spark research preview retired

GPT-5.3-Codex-Spark was deprecated on September 14, 2026 and is no longer available in the ChatGPT desktop app, Codex CLI or IDE extension.

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Full changelog, by month

Role

General-purpose model at OpenAI

GPT-5.3-Codex-SparkCurrent
Feb 2026 to now · 9 months

Works with

From recorded changes

OpenAI Codex

Agent · 1 shared change

Similar models

gpt-5-6-cyber

Model

GPT-5.6 Luna

$0.20 in, $1.20 out

GPT-5.6 Sol

$4 in, $20 out

Similar models for now. Real viewing data comes after launch.

Cost vs peers

3rd cheapest of 5 similar models by output price.

GPT-5.6 Luna$1.20 out · $0.20 in
GPT-5.6 Terra$12 out · $2 in
GPT-5.3-Codex-Spark$14 out · $1.75 in
GPT-5.6 Sol$20 out · $4 in
GPT-5.5$30 out · $5 in

Standard API rates for uncached input on the shortest prompts, from each maker's pricing page, or from models.dev for models not researched here yet.

What people say

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