GPT-5.3 Codex
By OpenAI · released 2026-02-05 (8 months) · 1 effort level
Not ranked · benchmark data missingproprietary
Today
Where GPT-5.3 Codex stands on the 2026-10-24 frontier
Not enough benchmark data to assess this release.
| Level | Input modalities | Intelligence | Cost | E2E | Today | Matchup |
|---|---|---|---|---|---|---|
| GPT-5.3 Codex (Xhigh) | Text, Image | 32.50 | - | 62.2s | no data | Compare |
Not plotted
Incomplete benchmark data
Intelligence and benchmark cost are both required to place this model on the frontier. Missing data is not a performance verdict.
- Intelligence index
- 32.50
- Benchmark cost
- Not reported
- Input / 1M tokens
- 1.75
- Output / 1M tokens
- 14.00
- Context window
- 400k
Matchup
Compare head to head
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. Markdown: /releases/gpt-5-3-codex?format=md · llms.txt · agent skill