gpt-5.3-codex-spark
Upstream reference: GPT-5.3-Codex-Spark research preview
Publisher: OpenAI
OpenAI introduced this smaller Codex variant for interactive coding. Its launch description and later retirement notice are historical product documentation.
Publisher-described context, separate from Sigma5C observations and recorded catalog statistics.
Published upstream specifications
- Published launch context
- 128k tokens, publisher notation Source
- Published launch modality
- Text-only Source
Publisher-described uses
- Interactive coding tasks described in the launch announcement. Source
Reference limitations
- OpenAI states the research preview retired on September 14, 2026 and is no longer offered in the named Codex clients. Historical output remains a record of that run. Source
A recorded tag and an upstream card association do not verify the deployed checkpoint, quantization, configured context or current hosted availability.
Publisher sources
- GPT-5.3-Codex-Spark research preview official documentation — OpenAI. Checked .
Links
Recorded references do not establish downloadable weights, licensing or current availability.
Where gpt-5.3-codex-spark comes from
Company / lab
OpenAI
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Model family
gpt-5.3-codex-spark
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