GPT-5.5
OpenAIProprietary
GPT-5.5 is a vision-language model from OpenAI. It ranks 21 of 167 on LMArena’s overall vision board with 1297±6 from 28,781 votes. Its best category is Diagrams (#14 of 123). License: Proprietary.
Key figures
- Developer
- OpenAI
- License
- Proprietary
- First seen (our snapshots)
- 2026-10-26
No data: Captioning.
Who it suits
- Overall #21 of 167: upper half.
- Strongest category: Diagrams (#14 of 123).
- Proprietary; used through OpenAI’s apps or API.
Neighbours on the overall board
| # | Model | Score | Votes | License | Δ vs this model |
|---|---|---|---|---|---|
| 18 | GPT-5.4 (High) OpenAI | 1303 | 30,747 | Proprietary | +6 |
| 19 |  Muse Spark 1.3 (xHigh) Meta | 1302 | 4,897 | Proprietary | +5 |
| 20 |  Gemini 3.6 Flash (High) Google | 1299 | 8,979 | Proprietary | +2 |
| 21 | GPT-5.5 OpenAI | 1297 | 28,781 | Proprietary | |
| 22 | Gemini 3.1 Pro Preview Google | 1296 | 47,114 | Proprietary | -1 |
| 23 |  Claude Opus 4.8 (High) Anthropic | 1294 | 18,303 | Proprietary | -3 |
| 24 |  GLM-5.3-Flash Z.ai | 1294 | 16,254 | MIT | -3 |
Alternatives · More from OpenAI
| # | Model | Score | Votes | License |
|---|---|---|---|---|
| 18 | GPT-5.4 (High) OpenAI | 1303 | 30,747 | Proprietary |
| 25 | GPT-5.5 (High) OpenAI | 1293 | 27,067 | Proprietary |
| 27 | GPT-5.4 OpenAI | 1292 | 22,804 | Proprietary |
| 29 | GPT-6.1 Sol (Max) OpenAI | 1288 | 2,330 | Proprietary |
| 35 | GPT-5.6 Sol (xHigh) OpenAI | 1281 | 11,439 | Proprietary |
Alternatives · Top open-weight models
| # | Model | Score | Votes | License |
|---|---|---|---|---|
| 24 | GLM-5.3-Flash Z.ai | 1294 | 16,254 | MIT |
| 34 |  Kimi K2.6 Moonshot AI | 1282 | 16,368 | Modified MIT |
| 38 |  DeepSeek-V4.1-Flash-20260910 (Max) DeepSeek | 1278 | 4,100 | MIT |
| 39 | Gemma 4 31B Google | 1276 | 40,219 | Apache 2.0 |
| 44 |  Qwen3.8-27B Alibaba | 1269 | 7,614 | Apache 2.0 |
How to read these scores
- If two scores differ by less than their ± intervals, the models are statistically close.
- Each category board is computed independently; do not compare scores across categories.
- Models with few votes move more; ranks of new entries may change.
FAQ
Where does GPT-5.5 rank among vision models?
Overall rank 21 (1297); OCR rank 21 (1306); Diagrams rank 14 (1325); Homework rank 19 (1327); Entity recognition rank 26 (1231); Creative writing rank 25 (1287); Humor rank 33 (1277); English rank 22 (1292); Chinese rank 17 (1360) (LMArena, data as of Oct 26, 2026).
How good is GPT-5.5 at OCR?
GPT-5.5 ranks 21 of 123 on LMArena’s OCR board with 1306 (20,286 votes).
Is GPT-5.5 better with Chinese or English prompts?
Chinese board: #17 of 128 (1360); English board: #22 of 167 (1292). The boards are computed separately, so compare ranks rather than scores.
Is GPT-5.5 open-weight?
No. LMArena lists it as Proprietary; it is available through OpenAI’s apps or API.
How far is GPT-5.5 from #1?
#1 overall is Claude Fable 5 (High) (1325); GPT-5.5 has 1297, 28 points behind.
Sources
LMArena data published Oct 19, 2026.
Synced here Oct 26, 2026.
Price, context length and release date have no reliable public data here and are not shown; all figures come from snapshots, blanks are –.