OpenAI: GPT-5.5
Released Apr 24, 2026file+image+text→text
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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
#8
▲ 1 vs 7d ago
Total arena votes
776,817
Across 86 (subset, category) entries
Providers on OR
5
Azure + others
First seen
2026-05-08
72 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
reasoning_effort
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 | 99.96% | - | - | - |
| OpenAI | openai | 1.1M | $5.00 | $30.00 | 98.20% | - | - | - |
| OpenAI | openai/flex | 1.1M | $2.50 | $15.00 | 98.20% | - | - | - |
| OpenAI | openai/priority | 1.1M | $12.50 | $75.00 | 98.20% | - | - | - |
| Azure | azure/eu | 1.1M | $5.50 | $33.00 | - | - | - | - |
Per-category ranks
Text
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| ★ #1 | Japanese | high | 1516 | 468 | |
| #6 | Chinese | - | 1536 | 2,162 | |
| #8 | Japanese | - | 1485 | 398 | |
| #8 | Math | - | 1496 | 2,294 | |
| #9 | Expert | high | 1517 | 4,214 | |
| #9 | Industry Business And Management And Financial Operations | high | 1489 | 8,735 | |
| #9 | Korean | high | 1455 | 649 | |
| #11 | Industry Life And Physical And Social Science | high | 1499 | 7,212 | |
| #11 | Industry Mathematical | high | 1499 | 2,379 | |
| #12 | French | - | 1502 | 1,694 | |
| #12 | German | - | 1482 | 671 | |
| #12 | Industry Legal And Government | high | 1490 | 3,477 | |
| #12 | Industry Mathematical | - | 1498 | 2,451 | |
| #12 | Industry Writing And Literature And Language | high | 1471 | 10,864 | |
| #12 | Non English | high | 1466 | 22,828 | |
| #13 | Chinese | high | 1526 | 2,193 | |
| #13 | Exclude Ties | high | 1492 | 33,198 | |
| #13 | Math | high | 1490 | 2,249 | |
| #13 | Overall | high | 1482 | 43,492 | |
| #14 | Industry Writing And Literature And Language | - | 1468 | 11,131 | |
| #14 | Instruction Following | high | 1477 | 14,495 | |
| #14 | Multi Turn | high | 1489 | 7,502 | |
| #15 | English | high | 1484 | 20,611 | |
| #15 | Hard Prompts | high | 1501 | 28,226 | |
| #15 | Industry Business And Management And Financial Operations | - | 1484 | 8,897 | |
| #15 | Russian | high | 1487 | 4,537 | |
| #17 | Expert | - | 1508 | 4,412 | |
| #17 | Industry Life And Physical And Social Science | - | 1494 | 7,321 | |
| #18 | Hard Prompts English | high | 1500 | 14,038 | |
| #18 | Instruction Following | - | 1471 | 15,123 | |
| #18 | Longer Query | high | 1486 | 19,153 | |
| #18 | Non English | - | 1458 | 23,577 | |
| #19 | Industry Software And It Services | high | 1510 | 17,130 | |
| #19 | Overall | - | 1475 | 44,872 | |
| #21 | Coding | high | 1519 | 12,012 | |
| #21 | French | high | 1488 | 1,637 | |
| #21 | Industry Entertainment And Sports And Media | high | 1447 | 9,752 | |
| #21 | Industry Legal And Government | - | 1481 | 3,607 | |
| #21 | Polish | high | 1477 | 773 | |
| #22 | Exclude Ties | - | 1484 | 34,339 | |
| #22 | Russian | - | 1480 | 4,548 | |
| #23 | English | - | 1479 | 21,267 | |
| #23 | Hard Prompts English | - | 1493 | 14,652 | |
| #24 | Hard Prompts | - | 1493 | 29,558 | |
| #26 | Creative Writing | high | 1448 | 7,559 | |
| #26 | Longer Query | - | 1480 | 20,023 | |
| #26 | Multi Turn | - | 1481 | 7,909 | |
| #27 | Industry Entertainment And Sports And Media | - | 1443 | 10,111 | |
| #28 | Industry Software And It Services | - | 1503 | 17,899 | |
| #29 | Spanish | - | 1463 | 1,363 | |
| #30 | Creative Writing | - | 1446 | 7,731 | |
| #32 | German | high | 1462 | 608 | |
| #33 | Polish | - | 1465 | 866 | |
| #35 | Industry Medicine And Healthcare | - | 1482 | 3,345 | |
| #35 | Spanish | high | 1459 | 1,299 | |
| #38 | Korean | - | 1417 | 717 | |
| #41 | Industry Medicine And Healthcare | high | 1479 | 3,312 | |
| #42 | Coding | - | 1506 | 12,766 |
Vision
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| ★ #2 | Homework | high | 1340 | 2,266 | |
| ★ #5 | Diagram | - | 1326 | 4,583 | |
| ★ #5 | Homework | - | 1328 | 2,353 | |
| #8 | Diagram | high | 1315 | 4,263 | |
| #8 | English | - | 1284 | 7,140 | |
| #8 | Ocr | high | 1300 | 11,132 | |
| #8 | Overall | high | 1286 | 15,445 | |
| #9 | Humor | high | 1280 | 537 | |
| #11 | Creative Writing Vision | high | 1297 | 890 | |
| #11 | Humor | - | 1272 | 569 | |
| #11 | Overall | - | 1285 | 16,562 | |
| #13 | Creative Writing | high | 1278 | 890 | |
| #13 | English | high | 1278 | 6,723 | |
| #13 | Ocr | - | 1296 | 11,994 | |
| #16 | Chinese | - | 1319 | 968 | |
| #19 | Chinese | high | 1315 | 829 | |
| #20 | Creative Writing | - | 1259 | 954 | |
| #21 | Creative Writing Vision | - | 1274 | 954 |
WebDev
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| #12 | Image To Webdev | high harness: codex-harness | 1510 | 4,607 | |
| #13 | Image To Webdev | harness: codex-harness | 1495 | 4,344 | |
| #15 | Webdev-html | high harness: codex-harness | 1521 | 1,145 | |
| #22 | Webdev-html | harness: codex-harness | 1494 | 1,146 | |
| #23 | Webdev | high harness: codex-harness | 1482 | 11,109 | |
| #24 | Overall | high harness: codex-harness | 1482 | 11,109 | |
| #24 | Webdev-react | high harness: codex-harness | 1476 | 7,806 | |
| #31 | Webdev | harness: codex-harness | 1450 | 9,278 | |
| #32 | Overall | harness: codex-harness | 1450 | 9,278 | |
| #34 | Webdev-react | harness: codex-harness | 1436 | 7,637 |