Grok 4
xAI's flagship reasoning model with parallel tool calling. Supports structured outputs, image and text inputs with a 256K context window. Always-on reasoning for maximum depth on complex problems.
Grok 3Benchmarks
This model hasn't been evaluated by Artificial Analysis yet. Benchmark scores will appear once they're published.
Specifications
Providers
Compare with
GPT 6 Astravs Grok 4GPT 5.6 Lunavs Grok 4
Claude Fable 5.1vs Grok 4Claude Opus 5vs Grok 4Claude Sonnet 5vs Grok 4Claude Haiku 4.5vs Grok 4
Gemini 3.8 Flashvs Grok 4Gemini 3.5 Flashvs Grok 4Gemini 3.5 Flash-Litevs Grok 4Gemma 4 31Bvs Grok 4Grok 4.6vs Grok 4Grok Build 0.1vs Grok 4Grok 4.1 Fastvs Grok 4
Muse Spark 1.3vs Grok 4
DeepSeek V4 Pro (0813)vs Grok 4DeepSeek V4 Flashvs Grok 4
MiniMax M3vs Grok 4
GLM 5.3vs Grok 4GLM 5.3 Flashvs Grok 4
Qwen3.8 Max (0902)vs Grok 4Qwen3.7 Plusvs Grok 4Qwen3 Coder Nextvs Grok 4
Nemotron 3 Ultravs Grok 4Frequently Asked Questions about Grok 4▼
Who created Grok 4?
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Grok 4 was created by xAI.
Is Grok 4 a reasoning model?
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No, Grok 4 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 4 support image or vision input?
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Yes, Grok 4 supports vision/image input. You can share images in your conversation and the model will analyze and respond based on their content.
Does Grok 4 support audio?
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No, Grok 4 does not support audio input.
What is the context window of Grok 4?
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Grok 4 has a context window of 256K tokens, meaning it can process approximately 192,000 words of context at once.
Is Grok 4 open source?
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Grok 4 is a proprietary model developed by xAI. The model weights and training data are not publicly available.
What is Grok 4 good at?
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Based on benchmark data, Grok 4 excels at: visual analysis and image understanding. It is xAI's capable model suitable for a wide range of tasks.
Where can I use Grok 4?
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You can chat with Grok 4 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 4 through xAI's own API or platform.