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Model vendor

xAI

Elon Musk AI company

Updated Aug 17, 2026. Data as of 2026-08-17

Website
Models31
Versions28
Open defaults0
CountryUS

On this page

  • Models
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xAI models

Default-version specifications and scored-version capability values are labeled separately.

30 of 31 rows
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Model
LLMBoard
Coverage
Context
License
Released
ModelXAGrok 4.5xAILLMBoard80.3Coverage60.0%Context500KLicenseClosed weightsReleasedJul 16, 2026
ModelXAGrok 4.6xAILLMBoard78.7Coverage20.0%Context500KLicenseClosed weightsReleasedAug 12, 2026
ModelXAGrok 4 HeavyxAILLMBoard67.8Coverage80.0%ContextN/ALicenseClosed weightsReleasedN/A
ModelXAGrok 4.20 Beta ReasoningxAILLMBoard57.5Coverage0.0%Context2MLicenseClosed weightsReleasedMar 9, 2026
ModelXAGrok 4xAILLMBoard56.1Coverage80.0%Context256KLicenseClosed weightsReleasedJul 9, 2025
ModelXAGrok 3xAILLMBoard54.5Coverage60.0%Context128KLicenseClosed weightsReleasedFeb 17, 2025
ModelXAGrok 4 FastxAILLMBoard53.4Coverage80.0%Context2MLicenseClosed weightsReleasedAug 28, 2025
ModelXAGrok 4.1 ThinkingxAILLMBoard50.8Coverage20.0%Context256KLicenseClosed weightsReleasedNov 17, 2025
ModelXAGrok 3 MinixAILLMBoard47.9Coverage60.0%Context128KLicenseClosed weightsReleasedFeb 17, 2025
ModelXAGrok 4.1xAILLMBoard46.5Coverage20.0%Context256KLicenseClosed weightsReleasedNov 17, 2025
ModelXAGrok 4.3xAILLMBoard40.5Coverage0.0%Context1MLicenseClosed weightsReleasedMay 6, 2026
ModelXAGrok Code Fast 1xAILLMBoard35.4Coverage20.0%Context256KLicenseClosed weightsReleasedAug 28, 2025
ModelXAGrok 2xAILLMBoard20.4Coverage80.0%Context128KLicenseClosed weightsReleasedAug 13, 2024
ModelXAGrok 2 minixAILLMBoard15.7Coverage80.0%ContextN/ALicenseClosed weightsReleasedAug 13, 2024
ModelXAGrok 1.5xAILLMBoard0.0Coverage80.0%ContextN/ALicenseClosed weightsReleasedMar 28, 2024
ModelXAGrok 1.5VxAILLMBoard0.0Coverage0.0%ContextN/ALicenseClosed weightsReleasedApr 12, 2024
ModelXAGrok 2 ImagexAILLMBoardN/ACoverageN/AContext131.1KLicenseClosed weightsReleasedDec 12, 2024
ModelXAGrok 4 Fast Non ReasoningxAILLMBoardN/ACoverageN/AContext2MLicenseClosed weightsReleasedAug 28, 2025
ModelXAGrok 4 Fast ReasoningxAILLMBoardN/ACoverageN/AContext2MLicenseClosed weightsReleasedAug 28, 2025
ModelXAGrok 4.1 Fast Non ReasoningxAILLMBoardN/ACoverageN/AContext2MLicenseClosed weightsReleasedNov 17, 2025
ModelXAGrok 4.1 Fast ReasoningxAILLMBoardN/ACoverageN/AContext2MLicenseClosed weightsReleasedNov 17, 2025
ModelXAGrok 4.20 Beta Non ReasoningxAILLMBoardN/ACoverageN/AContext2MLicenseClosed weightsReleasedMar 9, 2026
ModelXAGrok 4.20 Multi Agent BetaxAILLMBoardN/ACoverageN/AContext2MLicenseClosed weightsReleasedMar 9, 2026
ModelXAGrok Build 0.1xAILLMBoardN/ACoverageN/AContext256KLicenseClosed weightsReleasedApr 16, 2026
ModelXAGrok Imagine ImagexAILLMBoardN/ACoverageN/AContextN/ALicenseClosed weightsReleasedN/A
ModelXAGrok Imagine Image 2.0xAILLMBoardN/ACoverageN/AContextN/ALicenseClosed weightsReleasedN/A
ModelXAGrok Imagine VideoxAILLMBoardN/ACoverageN/AContextN/ALicenseClosed weightsReleasedN/A
ModelXAGrok Imagine Video 1.5xAILLMBoardN/ACoverageN/AContextN/ALicenseClosed weightsReleasedN/A
ModelXASpaceXAI TTSxAILLMBoardN/ACoverageN/AContextN/ALicenseClosed weightsReleasedN/A
ModelXAGrok Speech to TextxAILLMBoardN/ACoverageN/AContextN/ALicenseClosed weightsReleasedN/A
ModelXAgrok-imagine-image-qualityxAILLMBoardN/ACoverageN/AContextN/ALicenseClosed weightsReleasedN/A

xAI capability scores

Each unique model uses its latest scored version.

xAI LLMBoard scores

xAI Highlights

Leading xAI models by score, price and context window.

Top scoreGrok 4.580.3 LLMBoardLowest official inputGrok 4.3$1.3 / 1MLargest contextGrok 4 Fast2M tokens
Open-weight defaults0of 31 models

What is xAI?

Background and model catalog information for xAI.

Elon Musk AI company

Model ownership is separate from API hosting. One model can be offered by multiple API providers with different prices.

Vendor
xAI
Models
31
Versions
28
Country
US
Founded
Not available

Catalog data as of 2026-08-17.

FAQ

Common questions about xAI.

What is xAI's highest-ranked model?

Grok 4.5 currently has the strongest LLMBoard score from this vendor.

How many xAI models are tracked?

The catalog contains 31 independently selectable xAI models and 28 versions.

Does xAI host every listed model API?

Not necessarily. Vendor identifies the model developer; API providers are tracked separately.

Does xAI publish open-weight models?

No current default version is marked as open weight.