openai/gpt-5.5-pro
OpenAI: GPT-5.5 Pro
- Status
- Listed
- First seen
- 2026-10-07 17:06 UTC
- Last seen
- 2026-10-07 23:29 UTC
- First evidence
- Catalog
- Best evidence
- Catalog
| Seen by | Evidence | State | Last seen |
|---|---|---|---|
| OpenRouter catalog | Catalog | Listed | |
| models.dev metadata | Enrichment | Listed |
Metadata by source
Highlighted rows disagree between sources. Missing values show as unknown, not zero.
| Field | OpenRouter catalog | models.dev metadata |
|---|---|---|
| Name · conflict | OpenAI: GPT-5.5 Pro | GPT-5.5 Pro |
| Context | 1.05M | 1.05M |
| Max output | 128k | 128k |
| Input price /M | $30 | $30 |
| Output price /M | $180 | $180 |
| Input · conflict | file, image, text | image, pdf, text |
| Output | text | text |
Release
- Model
- GPT 5.5 Pro
- Lab
- OpenAI
- Released
- 23 Apr 2026
4 sources agree
- models.dev metadata: released 8 Apr 2026
- Epoch AI model data: released 23 Apr 2026 source
- models.dev metadata: released 23 Apr 2026 (17 hosts)
- models.dev metadata: released 24 Apr 2026
- OpenRouter catalog: listed on OpenRouter 24 Apr 2026
- Vercel AI Gateway: released 24 Apr 2026
- First listed
- OpenRouter · 24 Apr 2026 (1 day later)
History
Nothing here yet
No changes recorded for this model since the baseline.