Modelspage

GPT-5.3 Codex Spark

Coding-optimized GPT model for repository edits, reviews, and agentic software work

openai/gpt-5.3-codex-spark
Lab
OpenAI
Family
gpt-codex-spark
Providers
3
Context
128,000
Output limit
32,000
Knowledge
2025-08
Release
2026-02-05
Updated
2026-02-05
Weights
Closed
Input
Output types
Capabilities
tools, reasoning

Providers

3
Providers
OpenAIOpenAIgpt-5.3-codex-spark128,00032,000$1.75 / $14.00YesYesYesNo
OpenCodeOpenAIgpt-5.3-codex-spark128,000128,000$1.75 / $14.00YesYesYesNo
PoeOpenAIopenai/gpt-5.3-codex-spark128,00016,384$0.00 / $0.00YesYes-No
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