#156
XA
Grok 1.5
xAI
19.3 LLMBoard
xAI model product
Grok 4.5 is SpaceXAI's frontier model for coding, agentic tasks, and knowledge work. Trained alongside Cursor across tens of thousands of NVIDIA GB300 GPUs, it uses large-scale reinforcement learning focused on multi-step software engineering and other technical work. The model supports text and image inputs, reasoning, function calling, structured outputs, and a 500K-token context window, and is served at 80 tokens per second.
Updated Aug 10, 2026. Default version: Grok 4.5
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.
| vision style control | diagram | 5 | 1328.4 | 1,064 | N/A | |
| vision style control | homework | 5 | 1337.3 | 324 | N/A | |
| webdev | image to webdev | 5 | 1580.4 | 799 | N/A | |
| vision | diagram | 7 | 1328.4 | 1,064 | N/A | |
| webdev | webdev-html | 8 | 1583.6 | 461 | N/A | |
| vision | homework | 10 | 1334.7 | 324 | N/A | |
| vision style control | chinese | 11 | 1343.1 | 173 | N/A | |
| webdev | overall | 12 | 1552.4 | 4,605 | N/A | |
| webdev | webdev | 12 | 1552.4 | 4,605 | N/A | |
| webdev | webdev-react | 12 | 1552.8 | 3,280 | N/A | |
| vision | chinese | 13 | 1356.4 | 173 | N/A | |
| vision style control | overall | 13 | 1285.0 | 3,871 | N/A | |
| vision style control | creative writing vision | 15 | 1276.5 | 203 | N/A | |
| vision style control | ocr | 16 | 1296.4 | 2,768 | N/A | |
| vision | overall | 17 | 1295.4 | 3,871 | N/A | |
| vision | creative writing vision | 18 | 1286.4 | 203 | N/A | |
| text factuality | russian | 19 | 1484.7 | 1,328 | N/A | |
| vision | ocr | 19 | 1302.1 | 2,768 | N/A | |
| document | overall | 20 | 1453.7 | 2,435 | N/A | |
| text style control | industry mathematical | 20 | 1492.0 | 737 | N/A | |
| document style control | overall | 21 | 1462.0 | 2,435 | N/A | |
| vision | english | 21 | 1289.1 | 1,327 | N/A | |
| text factuality | industry entertainment and sports and media | 22 | 1445.8 | 3,586 | N/A | |
| vision style control | english | 22 | 1276.1 | 1,327 | N/A | |
| text factuality | hard prompts | 23 | 1493.9 | 9,887 | N/A | |
| text style control | chinese | 23 | 1521.9 | 968 | N/A | |
| text factuality | industry legal and government | 24 | 1487.6 | 985 | N/A | |
| text factuality | non english | 24 | 1457.8 | 8,774 | N/A | |
| text | industry mathematical | 25 | 1480.0 | 737 | N/A | |
| text factuality | overall | 25 | 1466.6 | 14,859 | N/A | |
| text factuality | chinese | 25 | 1510.7 | 707 | N/A | |
| text style control | coding | 25 | 1519.9 | 4,345 | N/A | |
| text factuality | industry life and physical and social science | 26 | 1488.7 | 2,195 | N/A | |
| text factuality | industry software and it services | 26 | 1503.9 | 6,128 | N/A | |
| text style control | industry software and it services | 26 | 1508.0 | 6,154 | N/A | |
| text style control | math | 26 | 1478.9 | 633 | N/A | |
| text factuality | exclude ties | 27 | 1470.3 | 11,253 | N/A | |
| text style control | expert | 27 | 1500.4 | 1,608 | N/A | |
| text factuality | longer query | 28 | 1483.5 | 6,839 | N/A | |
| text style control | industry entertainment and sports and media | 28 | 1445.2 | 3,663 | N/A | |
| text | chinese | 29 | 1510.7 | 968 | N/A | |
| text | german | 29 | 1458.3 | 228 | N/A | |
| text factuality | coding | 29 | 1519.1 | 4,310 | N/A | |
| text factuality | instruction following | 30 | 1464.4 | 5,128 | N/A | |
| text factuality | multi turn | 30 | 1475.7 | 2,322 | N/A | |
| text style control | longer query | 30 | 1482.8 | 6,871 | N/A | |
| text | industry entertainment and sports and media | 31 | 1433.2 | 3,663 | N/A | |
| text factuality | expert | 31 | 1492.9 | 1,379 | N/A | |
| text factuality | industry medicine and healthcare | 31 | 1487.6 | 831 | N/A | |
| text factuality | industry writing and literature and language | 31 | 1450.8 | 3,744 | N/A | |
| text style control | hard prompts english | 31 | 1492.6 | 3,994 | N/A | |
| text factuality | industry business and management and financial operations | 32 | 1466.9 | 2,803 | N/A | |
| text style control | german | 32 | 1467.8 | 228 | N/A | |
| text style control | hard prompts | 32 | 1491.8 | 9,902 | N/A | |
| text style control | instruction following | 32 | 1464.1 | 5,174 | N/A | |
| text style control | non english | 32 | 1459.4 | 8,790 | N/A | |
| text style control | russian | 32 | 1471.8 | 1,601 | N/A | |
| text | longer query | 33 | 1465.9 | 6,871 | N/A | |
| text factuality | creative writing | 33 | 1443.6 | 2,590 | N/A | |
| text factuality | english | 33 | 1470.4 | 6,075 | N/A | |
| text factuality | hard prompts english | 34 | 1494.3 | 3,961 | N/A | |
| text style control | industry writing and literature and language | 34 | 1454.1 | 3,801 | N/A | |
| text | exclude ties | 35 | 1450.3 | 11,270 | N/A | |
| text | math | 35 | 1465.9 | 633 | N/A | |
| text | non english | 35 | 1444.7 | 8,790 | N/A | |
| text | russian | 35 | 1456.8 | 1,601 | N/A | |
| text style control | overall | 35 | 1468.4 | 14,883 | N/A | |
| text style control | exclude ties | 35 | 1476.0 | 11,270 | N/A | |
| text | hard prompts | 36 | 1466.4 | 9,902 | N/A | |
| text | industry software and it services | 36 | 1477.9 | 6,154 | N/A | |
| text | overall | 37 | 1451.1 | 14,883 | N/A | |
| text | expert | 37 | 1477.8 | 1,608 | N/A | |
| text style control | creative writing | 37 | 1446.0 | 2,765 | N/A | |
| text | coding | 38 | 1481.5 | 4,345 | N/A | |
| text | hard prompts english | 38 | 1464.2 | 3,994 | N/A | |
| text | instruction following | 38 | 1447.6 | 5,174 | N/A | |
| text style control | english | 38 | 1473.5 | 6,093 | N/A | |
| text | industry life and physical and social science | 39 | 1466.3 | 2,338 | N/A | |
| text style control | industry business and management and financial operations | 39 | 1463.5 | 2,996 | N/A | |
| text | industry writing and literature and language | 40 | 1439.8 | 3,801 | N/A | |
| text style control | industry life and physical and social science | 40 | 1484.7 | 2,338 | N/A | |
| text | creative writing | 41 | 1436.3 | 2,765 | N/A | |
| text | industry business and management and financial operations | 41 | 1440.7 | 2,996 | N/A | |
| text | industry legal and government | 44 | 1457.0 | 1,244 | N/A | |
| text | english | 46 | 1453.6 | 6,093 | N/A | |
| text | multi turn | 46 | 1454.2 | 2,578 | N/A | |
| text style control | industry legal and government | 47 | 1468.1 | 1,244 | N/A | |
| text style control | multi turn | 52 | 1469.2 | 2,578 | N/A | |
| text style control | korean | 57 | 1404.1 | 273 | N/A | |
| text | korean | 60 | 1394.2 | 273 | N/A | |
| text style control | french | 63 | 1467.5 | 513 | N/A | |
| text style control | industry medicine and healthcare | 64 | 1470.0 | 1,070 | N/A | |
| text style control | spanish | 66 | 1439.7 | 383 | N/A | |
| text | french | 72 | 1447.7 | 513 | N/A | |
| text | industry medicine and healthcare | 72 | 1445.8 | 1,070 | N/A | |
| text | spanish | 75 | 1430.7 | 383 | N/A | |
| text style control | polish | 97 | 1413.7 | 265 | N/A | |
| text | polish | 103 | 1400.7 | 265 | 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.
| OpenCode Go | grok-4.5 | global | $2 | $6 | 500K | |
| DaoXE | grok-4.5 | global | $2 | $6 | 500K | |
| OpenCode Zen | grok-4.5 | global | $2 | $6 | 500K | |
| GitHub Copilot | grok-4.5 | global | $2 | $6 | 500K | |
| Pioneer | grok-4.5 | global | $2 | $6 | 500K | |
| Abacus | grok-4.5 | global | $2 | $6 | 500K | |
| xAI | grok-4.5 | global | $2 | $6 | 500K | |
| AIHubMix | grok-4.5 | global | $2 | $6 | 1M | |
| Requesty | grok-4.5 | global | $2 | $6 | 500K |
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.
| Grok 4.5 | N/A | N/A | 500K | 500K | No | Proprietary |
A concise description based on the published model registry.
Grok 4.5 is SpaceXAI's frontier model for coding, agentic tasks, and knowledge work. Trained alongside Cursor across tens of thousands of NVIDIA GB300 GPUs, it uses large-scale reinforcement learning focused on multi-step software engineering and other technical work. The model supports text and image inputs, reasoning, function calling, structured outputs, and a 500K-token context window, and is served at 80 tokens per second.
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 Grok 4.5.
Grok 4.5's default version was released on Jul 16, 2026.
Grok 4.5's official API price is $2 per million input tokens and $6 per million output tokens via xAI. The lowest tracked third-party offer starts at $2 input and $6 output via OpenCode Go.
Grok 4.5 is published under xAI in the model registry.
The default version has a 500K token context window.
No. The default version is not marked as having publicly available weights.
9 published provider offerings are linked to the default version.
No nearby ranked alternatives are currently available.