Grok 4
reasoning and coding capabilities, real-time search integration, and is available in both generalist and “Heavy” tier versions for enhanced performance.
- Type
- Multimodal
- Weights
- Closed
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Grok 4 Fast
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Grok 4 Fast is xAI’s optimized variant of the Grok 4 family. It delivers the same reasoning backbone as Grok…
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Grok 4 Heavy
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Grok 4 Heavy is xAI’s most powerful Grok 4 variant—frontier-level reasoning with native tool use, real-time s…
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Grok 4.1
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Grok 4.1 is xAI’s reasoning model tuned for stronger analysis and coding with faster, more direct answers. It…
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Grok 4.1 is xAI’s reasoning model tuned for stronger analysis and coding with faster, more direct answers. It…
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Grok 4.2
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Grok 4.3
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Grok 4.3 is xAI’s flagship large language model for high-end reasoning, coding, and agentic workflows. xAI po…
About xAI
1
xAI is an artificial intelligence startup founded by Elon Musk, aiming to understand the universe.
Benchmark scores
6
How Grok 4 ranks on tracked AI benchmarks. Click any benchmark to see its full leaderboard.
Tools using Grok 4
40