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
#9
Across all subsets · overall
Total arena votes
470,750
Across 82 (subset, category) entries
Providers on OR
3
Azure + others
First seen
2026-05-08
45 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 | 99.95% | - | - | - |
| OpenAI | openai | 1.1M | $5.00 | $30.00 | 93.61% | - | - | - |
| Azure | azure/eu | 1.1M | $5.50 | $33.00 | - | - | - | - |
Per-category ranks
Text
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| ★ #1 | Japanese | high | 1536 | 256 | |
| ★ #5 | Chinese | - | 1537 | 1,395 | |
| #6 | French | - | 1511 | 1,062 | |
| #6 | Korean | high | 1464 | 392 | |
| #8 | Expert | high | 1523 | 2,590 | |
| #9 | Industry Business And Management And Financial Operations | - | 1487 | 5,645 | |
| #9 | Industry Writing And Literature And Language | high | 1474 | 7,044 | |
| #9 | Japanese | - | 1486 | 216 | |
| #10 | Exclude Ties | high | 1490 | 21,714 | |
| #10 | German | - | 1485 | 417 | |
| #10 | Industry Business And Management And Financial Operations | high | 1487 | 5,632 | |
| #10 | Overall | high | 1481 | 28,268 | |
| #11 | Chinese | high | 1526 | 1,396 | |
| #11 | Industry Mathematical | high | 1499 | 1,633 | |
| #11 | Industry Writing And Literature And Language | - | 1467 | 7,180 | |
| #11 | Instruction Following | high | 1479 | 9,331 | |
| #11 | Math | high | 1494 | 1,569 | |
| #13 | Hard Prompts | high | 1500 | 18,193 | |
| #13 | Industry Mathematical | - | 1494 | 1,657 | |
| #13 | Math | - | 1490 | 1,574 | |
| #14 | English | high | 1483 | 13,577 | |
| #14 | Expert | - | 1507 | 2,771 | |
| #14 | Industry Legal And Government | high | 1485 | 2,182 | |
| #14 | Industry Life And Physical And Social Science | - | 1496 | 4,805 | |
| #14 | Russian | high | 1485 | 3,017 | |
| #15 | Industry Life And Physical And Social Science | high | 1495 | 4,636 | |
| #16 | Hard Prompts English | high | 1499 | 9,194 | |
| #16 | Instruction Following | - | 1472 | 9,794 | |
| #16 | Longer Query | high | 1486 | 12,143 | |
| #16 | Overall | - | 1475 | 29,071 | |
| #17 | French | high | 1497 | 1,045 | |
| #17 | Industry Software And It Services | high | 1509 | 11,038 | |
| #17 | Russian | - | 1481 | 3,006 | |
| #19 | Coding | high | 1519 | 7,700 | |
| #19 | Creative Writing | high | 1451 | 4,904 | |
| #19 | Industry Entertainment And Sports And Media | high | 1447 | 6,255 | |
| #19 | Multi Turn | high | 1483 | 4,810 | |
| #20 | Creative Writing | - | 1450 | 4,977 | |
| #20 | Exclude Ties | - | 1483 | 22,344 | |
| #20 | Industry Legal And Government | - | 1479 | 2,287 | |
| #21 | Hard Prompts | - | 1494 | 19,081 | |
| #23 | English | - | 1477 | 13,992 | |
| #23 | Hard Prompts English | - | 1492 | 9,627 | |
| #23 | Multi Turn | - | 1482 | 5,090 | |
| #24 | Industry Entertainment And Sports And Media | - | 1443 | 6,411 | |
| #25 | Longer Query | - | 1478 | 12,790 | |
| #27 | Spanish | - | 1462 | 868 | |
| #28 | Industry Software And It Services | - | 1501 | 11,456 | |
| #30 | Spanish | high | 1457 | 781 | |
| #39 | Coding | - | 1504 | 8,142 | |
| #39 | Industry Medicine And Healthcare | - | 1477 | 2,187 | |
| #42 | Korean | - | 1408 | 403 | |
| #47 | Industry Medicine And Healthcare | high | 1473 | 2,136 | |
| #48 | German | high | 1442 | 368 |
Vision
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| ★ #1 | Homework | high | 1341 | 1,617 | |
| ★ #4 | Homework | - | 1329 | 1,689 | |
| ★ #5 | Diagram | - | 1325 | 3,025 | |
| #9 | Creative Writing Vision | high | 1297 | 563 | |
| #9 | Diagram | high | 1314 | 2,792 | |
| #9 | English | - | 1281 | 4,748 | |
| #9 | Humor | high | 1277 | 334 | |
| #9 | Overall | high | 1284 | 10,106 | |
| #10 | Humor | - | 1275 | 372 | |
| #10 | Ocr | high | 1297 | 7,300 | |
| #11 | Creative Writing | high | 1277 | 563 | |
| #11 | Overall | - | 1283 | 10,947 | |
| #12 | Ocr | - | 1295 | 7,966 | |
| #14 | Chinese | - | 1315 | 682 | |
| #16 | English | high | 1273 | 4,456 | |
| #18 | Chinese | high | 1308 | 548 | |
| #26 | Creative Writing | - | 1246 | 607 | |
| #28 | Creative Writing Vision | - | 1260 | 607 |
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 | |
| #13 | Webdev-html | high harness: codex-harness | 1512 | 847 | |
| #17 | Webdev-html | harness: codex-harness | 1492 | 867 | |
| #18 | Overall | high harness: codex-harness | 1484 | 6,726 | |
| #18 | Webdev | high harness: codex-harness | 1482 | 5,731 | |
| #20 | Webdev-react | high harness: codex-harness | 1474 | 5,865 | |
| #24 | Webdev | harness: codex-harness | 1449 | 5,576 | |
| #26 | Overall | harness: codex-harness | 1449 | 6,569 | |
| #27 | Webdev-react | harness: codex-harness | 1436 | 5,695 |