Grok 3
LegacyxAI's previous flagship excelling at enterprise tasks.
Strong at data extraction, coding, and text summarization with deep domain knowledge in finance and healthcare. Superseded by Grok 4.
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Grok 3 by xAI has a Capability Index of 71.8, making it comparable to the field average. It ranks #53 out of 92 models on the idapt capability leaderboard. The model supports a 131K context window.
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Nemotron 3 Ultravs Grok 3Frequently Asked Questions about Grok 3▼
Who created Grok 3?
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Grok 3 was created by xAI.
How capable is Grok 3?
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Grok 3 has a Capability Index of 71.8/100, making it comparable to the field average. It ranks #53 out of 92 models.
Is Grok 3 a reasoning model?
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No, Grok 3 is not a reasoning model. It responds directly without an extended internal thinking step. For tasks requiring deep chain-of-thought reasoning, consider models like Claude, o-series from OpenAI, or Gemini Thinking.
Does Grok 3 support image or vision input?
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No, Grok 3 does not currently support image or vision input. It is a text-only model.
Does Grok 3 support audio?
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No, Grok 3 does not support audio input.
What is the context window of Grok 3?
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Grok 3 has a context window of 131K tokens, meaning it can process approximately 98,304 words of context at once.
Is Grok 3 open source?
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Grok 3 is a proprietary model developed by xAI. The model weights and training data are not publicly available.
Where can I use Grok 3?
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You can chat with Grok 3 on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access Grok 3 through xAI's own API or platform.