Product details · WUT-GPT-5-3-CODEX-SPARK
GPT-5.3-Codex-Spark
GPT-5.3-Codex-Spark was discontinued on September 14, 2026 and removed from the desktop app, Codex CLI and IDE extension.
Sources and shutdown details ↘The record
OpenAI’s GPT-5.3-Codex-Spark research preview for fast, interactive coding in the Codex desktop app, CLI and IDE extension.
- Operator at shutdown
- OpenAI Company source
- Launched
- 12 Feb 2026Launch source
- Service end
- 14 Sep 2026Closure source
- Lifespan
- 7 months
Sources and verification
GPT-5.3-Codex-Spark deprecated — OpenAI changelog ↗ · Checked 27 Sep 2026
Verification notes
- Shutdown
- The shutdown covers the GPT-5.3-Codex-Spark research preview across those three user interfaces. Codex itself, GPT-5.3-Codex and separately available API/model services are outside this record. The official changelog dates the announcement and end to September 14. Closure source
- Dates checked
- Announced 14 Sep 2026 · Verified 27 Sep 2026
- AI functionality
- AI functionality source
- Launch
- OpenAI released the research preview to ChatGPT Pro users on February 12, 2026 across the Codex app, CLI and IDE extension.
- Location
- United States · San Francisco. OpenAI's May 7, 2025 Department of Energy submission records its address in San Francisco, California. This records the operator's historical city, not a service market or server location. Coordinates use the Natural Earth city point rounded to two decimal places. Location source · Coordinate source
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