openai/gpt-5.3-codex
GPT 5.3 Codex
- Status
- Listed
- First seen
- 2026-10-07 17:06 UTC
- Last seen
- 2026-10-07 23:12 UTC
- First evidence
- Catalog
- Best evidence
- Catalog
| Seen by | Evidence | State | Last seen |
|---|---|---|---|
| Vercel AI Gateway | Catalog | Listed |
Metadata by source
Highlighted rows disagree between sources. Missing values show as unknown, not zero.
| Field | Vercel AI Gateway |
|---|---|
| Name | GPT 5.3 Codex |
| Made by | openai |
| Context | 400k |
| Max output | 128k |
| Input price /M | $1.75 |
| Output price /M | $14 |
| Input | image, pdf, text |
| Output | text |
Release
- Model
- GPT 5.3 Codex
- Lab
- OpenAI
- Released
- 5 Feb 2026
3 sources agree
- Epoch AI model data: released 5 Feb 2026 source
- models.dev metadata: released 5 Feb 2026 (21 hosts)
- Vercel AI Gateway: released 5 Feb 2026
- models.dev metadata: released 10 Feb 2026
- models.dev metadata: released 15 Feb 2026
- models.dev metadata: released 24 Feb 2026 (4 hosts)
- OpenRouter catalog: listed on OpenRouter 24 Feb 2026
- models.dev metadata: released 20 Mar 2026
- First listed
- OpenRouter · 24 Feb 2026 (19 days later)
History
Nothing here yet
No changes recorded for this model since the baseline.