#164
OP
GPT-4.1-nano
OpenAI
11.4 LLMBoard
OpenAI model product
GPT-5.3 Chat is the instant model used in ChatGPT. It features high intelligence with medium speed, supporting text and image inputs with a 128k context window. It supports streaming, function calling, and structured outputs, priced at $1.75/1M input and $14.00/1M output tokens.
Updated Aug 10, 2026. Default version: GPT-5.3 Chat
Structured fields from the published default version.
This profile uses the latest version under this unique model that has a calculated LLMBoard score. Arena and price are excluded.
No published version under this unique model currently has enough benchmark coverage to calculate a score.
Published benchmark records for the scored version currently unavailable.
No published benchmark result is linked to the scored version.
Preference and agent-evaluation signals from published Arena datasets.
| text style control | polish | 33 | 1471.1 | 723 | N/A | |
| text style control | industry medicine and healthcare | 40 | 1481.2 | 2,428 | N/A | |
| text style control | korean | 42 | 1420.0 | 539 | N/A | |
| text style control | industry business and management and financial operations | 46 | 1460.0 | 6,456 | N/A | |
| text style control | russian | 49 | 1458.6 | 3,493 | N/A | |
| text style control | industry legal and government | 51 | 1465.3 | 2,511 | N/A | |
| text style control | non english | 53 | 1442.3 | 17,348 | N/A | |
| text style control | multi turn | 55 | 1467.9 | 6,119 | N/A | |
| text style control | japanese | 56 | 1417.6 | 241 | N/A | |
| text style control | french | 57 | 1471.8 | 976 | N/A | |
| text style control | german | 57 | 1446.1 | 517 | N/A | |
| text style control | chinese | 59 | 1490.6 | 1,706 | N/A | |
| text style control | exclude ties | 61 | 1451.8 | 25,016 | N/A | |
| text style control | industry software and it services | 61 | 1487.9 | 12,663 | N/A | |
| text style control | longer query | 62 | 1455.5 | 12,364 | N/A | |
| text style control | overall | 63 | 1448.6 | 32,583 | N/A | |
| text style control | hard prompts | 63 | 1471.3 | 20,371 | N/A | |
| text style control | coding | 64 | 1496.6 | 8,671 | N/A | |
| text style control | industry writing and literature and language | 65 | 1427.4 | 7,507 | N/A | |
| text style control | industry entertainment and sports and media | 68 | 1414.2 | 6,323 | N/A | |
| text style control | expert | 69 | 1470.3 | 2,725 | N/A | |
| text style control | instruction following | 69 | 1434.2 | 10,469 | N/A | |
| text style control | hard prompts english | 70 | 1468.6 | 9,947 | N/A | |
| text style control | spanish | 70 | 1437.7 | 1,169 | N/A | |
| text style control | industry life and physical and social science | 72 | 1460.0 | 5,132 | N/A | |
| text factuality | chinese | 73 | 1457.6 | 1,224 | N/A | |
| text factuality | russian | 74 | 1432.9 | 2,498 | N/A | |
| text style control | english | 74 | 1450.6 | 15,235 | N/A | |
| text factuality | math | 78 | 1411.8 | 1,400 | N/A | |
| text style control | creative writing | 79 | 1406.3 | 5,027 | N/A | |
| text factuality | industry mathematical | 80 | 1403.6 | 1,286 | N/A | |
| text factuality | multi turn | 80 | 1438.9 | 4,624 | N/A | |
| text factuality | industry legal and government | 87 | 1434.2 | 1,812 | N/A | |
| text factuality | industry medicine and healthcare | 87 | 1450.2 | 1,707 | N/A | |
| text factuality | expert | 94 | 1432.9 | 1,953 | N/A | |
| text style control | math | 94 | 1426.1 | 2,018 | N/A | |
| text | japanese | 99 | 1354.2 | 241 | N/A | |
| text factuality | industry business and management and financial operations | 101 | 1424.9 | 4,745 | N/A | |
| text factuality | industry writing and literature and language | 101 | 1397.7 | 5,660 | N/A | |
| text factuality | longer query | 103 | 1429.5 | 10,499 | N/A | |
| text factuality | coding | 105 | 1458.1 | 6,958 | N/A | |
| text factuality | creative writing | 105 | 1378.7 | 3,668 | N/A | |
| text style control | industry mathematical | 105 | 1424.6 | 1,821 | N/A | |
| text factuality | industry entertainment and sports and media | 106 | 1380.6 | 4,771 | N/A | |
| text factuality | non english | 106 | 1408.2 | 17,199 | N/A | |
| text factuality | instruction following | 107 | 1407.8 | 8,642 | N/A | |
| text | russian | 110 | 1401.6 | 3,493 | N/A | |
| text factuality | overall | 110 | 1418.7 | 32,390 | N/A | |
| text factuality | hard prompts english | 110 | 1443.5 | 8,223 | N/A | |
| text factuality | industry software and it services | 110 | 1449.6 | 11,682 | N/A | |
| text factuality | hard prompts | 111 | 1440.1 | 20,233 | N/A | |
| text factuality | industry life and physical and social science | 111 | 1426.9 | 3,757 | N/A | |
| text | multi turn | 112 | 1413.0 | 6,119 | N/A | |
| text | polish | 112 | 1391.8 | 723 | N/A | |
| text factuality | exclude ties | 115 | 1405.9 | 24,876 | N/A | |
| text | korean | 118 | 1348.6 | 539 | N/A | |
| text factuality | english | 121 | 1422.4 | 15,042 | N/A | |
| text | german | 125 | 1380.1 | 517 | N/A | |
| text | french | 127 | 1398.8 | 976 | N/A | |
| text | industry writing and literature and language | 129 | 1378.4 | 7,507 | N/A | |
| text | chinese | 132 | 1426.6 | 1,706 | N/A | |
| text | expert | 132 | 1397.1 | 2,725 | N/A | |
| text | longer query | 132 | 1394.8 | 12,364 | N/A | |
| text | instruction following | 133 | 1377.0 | 10,469 | N/A | |
| text | non english | 134 | 1381.0 | 17,348 | N/A | |
| text | creative writing | 137 | 1355.2 | 5,027 | N/A | |
| text | industry entertainment and sports and media | 138 | 1355.5 | 6,323 | N/A | |
| text | industry business and management and financial operations | 139 | 1383.3 | 6,456 | N/A | |
| text | spanish | 139 | 1372.1 | 1,169 | N/A | |
| text | industry medicine and healthcare | 140 | 1391.1 | 2,428 | N/A | |
| text | coding | 141 | 1406.4 | 8,671 | N/A | |
| text | industry legal and government | 141 | 1392.2 | 2,511 | N/A | |
| text | overall | 142 | 1387.6 | 32,583 | N/A | |
| text | exclude ties | 142 | 1365.8 | 25,016 | N/A | |
| text | hard prompts | 142 | 1397.4 | 20,371 | N/A | |
| text | hard prompts english | 143 | 1395.8 | 9,947 | N/A | |
| text | industry software and it services | 145 | 1406.9 | 12,663 | N/A | |
| text | english | 148 | 1389.6 | 15,235 | N/A | |
| text | industry mathematical | 150 | 1380.5 | 1,821 | N/A | |
| text | industry life and physical and social science | 152 | 1383.0 | 5,132 | N/A | |
| text | math | 152 | 1384.7 | 2,018 | N/A |
Official vendor API PAYG pricing is summarized first. The table then lists individual provider offerings without treating their minimum as the official price.
| LLM Gateway | gpt-5.3-chat-latest | global | $1.75 | $14 | 128K | |
| ZenMux | openai/gpt-5.3-chat | global | $1.75 | $14 | 128K | |
| Abacus | gpt-5.3-chat-latest | global | $1.75 | $14 | 400K | |
| Vercel AI Gateway | openai/gpt-5.3-chat | global | $1.75 | $14 | 128K | |
| OpenRouter | openai/gpt-5.3-chat | global | $1.75 | $14 | 128K |
Official prices use only the vendor's configured official Provider and positive standard USD PAYG rates. Third-party offers remain explicitly labeled.
All published versions linked to this unique model. The score columns identify the version used by the current overall ranking.
| GPT-5.3 Chat | N/A | N/A | 128K | 16.4K | No | Proprietary |
A concise description based on the published model registry.
GPT-5.3 Chat is the instant model used in ChatGPT. It features high intelligence with medium speed, supporting text and image inputs with a 128k context window. It supports streaming, function calling, and structured outputs, priced at $1.75/1M input and $14.00/1M output tokens.
Use the benchmark, Arena and pricing sections above as separate evidence. A missing field means the current data snapshot does not support that claim.
Data snapshot: 2026-08-07. Editorial model content is not available in the backend.
Recommendations prioritize the same model type and family, then the closest published LLMBoard score.
Common questions about GPT-5.3.
GPT-5.3's default version was released on Mar 4, 2026.
No official standard PAYG price is currently available for GPT-5.3. The lowest tracked third-party offer starts at $1.75 input and $14 output via LLM Gateway.
GPT-5.3 is published under OpenAI in the model registry.
The default version has a 128K token context window.
No. The default version is not marked as having publicly available weights.
5 published provider offerings are linked to the default version.
No nearby ranked alternatives are currently available.