GPT-5.5 Instant
OpenAI
57.1#93 of 427 overall
- Input / output
- US$ 5,00 / US$ 30,00 US$ per 1M tokens
- Context
- — tokens
- Release
- 05/05/2026 release date
- Weights
- Closed
- Speed
- 0 tok/s first token in 0.00 s
Scores by source
Scores by sourcepercentile = % of ranked models it beats| Metric | Value | Percentile | Source |
|---|---|---|---|
| Arena text (Elo) weight 2 | 1419 | 56% | LMArena |
| Arena vision (Elo) weight 0.5 | 1250 | 52% | LMArena |
| Humanity's Last Exam weight 1 | 21.6 | 70% | Artificial Analysis |
| GPQA Diamond | 84.6 | 76% | Artificial Analysis |
| Long-context reasoning | 66.3 | 57% | Artificial Analysis |
By category
| Category | Score | Rank | Metrics |
|---|---|---|---|
| Reasoning | 65.3 | #108 | Humanity's Last Exam, GPQA Diamond |
| Research | 53.4 | #150 | Long-context reasoning |
| Chat | 52.8 | #86 | Arena text (Elo) |
| Vision | 51.0 | #52 | Arena vision (Elo) |
History
RankingIA score on each collection day (hover to see the rank).
Daily collection started on 10/30/2026. The chart appears from the second day the model is ranked.