OpenAI: GPT-5.5
Released Apr 24, 2026Try it on:
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...
Best overall rank
#7
Across all subsets · overall
Total arena votes
266,974
Across 79 (subset, category) entries
Providers on OR
3
Azure + others
First seen
2026-05-08
26 days tracked
Trend
Pricing
Per token
- Input (per 1M)
- $5.00
- Output (per 1M)
- $30.00
- Cache Read (per 1M)
- $0.500
Per unit
- Web search
- $0.010/call
Capabilities
Modality
text+image+file->textContext
1.1M tokens
Tokenizer
GPT
Knowledge cutoff
2025-12-01
Max output
128K tokens
Moderation
Moderated
Supported parameters
include_reasoning
max_completion_tokens
max_tokens
reasoning
response_format
seed
structured_outputs
tool_choice
tools
Providers
| Provider | Region / Tag | Context | Input/M | Output/M | Uptime 1d | Latency | Quant | Cache |
|---|---|---|---|---|---|---|---|---|
| Azure | azure | 1.1M | $5.00 | $30.00 | 99.94% | - | - | - |
| OpenAI | openai | 1.1M | $5.00 | $30.00 | 97.40% | - | - | - |
| Azure | azure/eu | 1.1M | $5.50 | $33.00 | - | - | - | - |
Per-category ranks
Text
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| ★ #2 | Chinese | - | 1549 | 808 | |
| ★ #2 | French | - | 1529 | 581 | |
| ★ #4 | Expert | high | 1529 | 1,516 | |
| ★ #5 | Industry Business And Management And Financial Operations | high | 1492 | 3,238 | |
| ★ #5 | Industry Mathematical | high | 1510 | 987 | |
| #6 | Chinese | high | 1534 | 812 | |
| #6 | French | high | 1512 | 587 | |
| #6 | Industry Business And Management And Financial Operations | - | 1490 | 3,224 | |
| #6 | Industry Mathematical | - | 1509 | 982 | |
| #6 | Spanish | high | 1476 | 456 | |
| #7 | Industry Writing And Literature And Language | high | 1475 | 4,027 | |
| #7 | Instruction Following | high | 1481 | 5,379 | |
| #7 | Korean | high | 1456 | 219 | |
| #7 | Math | high | 1499 | 1,003 | |
| #8 | Exclude Ties | high | 1494 | 12,531 | |
| #8 | Math | - | 1497 | 1,000 | |
| #8 | Overall | high | 1482 | 16,573 | |
| #9 | English | high | 1487 | 7,959 | |
| #9 | Industry Writing And Literature And Language | - | 1470 | 4,052 | |
| #10 | Coding | high | 1522 | 4,494 | |
| #10 | Expert | - | 1511 | 1,637 | |
| #10 | Hard Prompts | high | 1500 | 10,459 | |
| #10 | Industry Software And It Services | high | 1511 | 6,421 | |
| #10 | Longer Query | high | 1492 | 6,782 | |
| #10 | Russian | high | 1487 | 1,797 | |
| #11 | Industry Life And Physical And Social Science | high | 1496 | 2,706 | |
| #11 | Overall | - | 1476 | 16,852 | |
| #12 | Hard Prompts English | high | 1502 | 5,267 | |
| #12 | Industry Life And Physical And Social Science | - | 1496 | 2,810 | |
| #13 | Exclude Ties | - | 1486 | 12,749 | |
| #13 | Industry Legal And Government | high | 1484 | 1,266 | |
| #13 | Instruction Following | - | 1473 | 5,613 | |
| #15 | English | - | 1479 | 8,208 | |
| #16 | Creative Writing | high | 1451 | 2,766 | |
| #16 | Industry Entertainment And Sports And Media | high | 1449 | 3,512 | |
| #16 | Russian | - | 1478 | 1,710 | |
| #17 | Hard Prompts | - | 1494 | 10,924 | |
| #20 | Creative Writing | - | 1449 | 2,852 | |
| #20 | Hard Prompts English | - | 1492 | 5,578 | |
| #21 | Longer Query | - | 1480 | 7,030 | |
| #21 | Spanish | - | 1465 | 526 | |
| #22 | Industry Entertainment And Sports And Media | - | 1443 | 3,620 | |
| #22 | Multi Turn | high | 1480 | 2,795 | |
| #23 | Industry Software And It Services | - | 1501 | 6,579 | |
| #27 | Industry Legal And Government | - | 1473 | 1,246 | |
| #27 | Multi Turn | - | 1479 | 2,891 | |
| #28 | German | - | 1456 | 226 | |
| #30 | Coding | - | 1508 | 4,672 | |
| #37 | German | high | 1448 | 208 | |
| #39 | Industry Medicine And Healthcare | - | 1475 | 1,222 | |
| #42 | Industry Medicine And Healthcare | high | 1474 | 1,229 | |
| #42 | Korean | - | 1407 | 221 |
Vision
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| ★ #1 | Homework | high | 1336 | 743 | |
| ★ #2 | Homework | - | 1333 | 788 | |
| ★ #3 | Diagram | - | 1333 | 1,226 | |
| #6 | English | - | 1284 | 2,037 | |
| #7 | Overall | - | 1288 | 4,662 | |
| #8 | Chinese | - | 1329 | 315 | |
| #8 | Ocr | - | 1296 | 3,327 | |
| #9 | Overall | high | 1278 | 4,238 | |
| #10 | Ocr | high | 1291 | 2,990 | |
| #12 | Creative Writing Vision | high | 1282 | 254 | |
| #12 | Humor | - | 1261 | 175 | |
| #13 | Diagram | high | 1303 | 1,157 | |
| #14 | Creative Writing | high | 1262 | 254 | |
| #14 | English | high | 1266 | 1,830 | |
| #16 | Chinese | high | 1307 | 256 | |
| #16 | Creative Writing | - | 1258 | 278 | |
| #18 | Creative Writing Vision | - | 1269 | 278 |
WebDev
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| #8 | Image To Webdev | high harness: codex-harness | 1519 | 1,965 | |
| #10 | Image To Webdev | harness: codex-harness | 1489 | 1,935 | |
| #11 | Webdev-html | high harness: codex-harness | 1505 | 523 | |
| #14 | Overall | high harness: codex-harness | 1479 | 4,348 | |
| #14 | Webdev | high harness: codex-harness | 1479 | 4,348 | |
| #14 | Webdev-html | harness: codex-harness | 1492 | 530 | |
| #14 | Webdev-react | high harness: codex-harness | 1470 | 3,815 | |
| #21 | Overall | harness: codex-harness | 1444 | 4,145 | |
| #21 | Webdev | harness: codex-harness | 1444 | 4,145 | |
| #23 | Webdev-react | harness: codex-harness | 1431 | 3,610 |