Grok 4.5 vs Claude Opus 4.6
xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
Anthropic's previous flagship for complex coding and professional work.
No captured outputs for these models yet.
Frequently Asked Questions: Grok 4.5 vs Claude Opus 4.6▼
Which is better, Grok 4.5 or Claude Opus 4.6?
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Based on the Capability Index, Grok 4.5 scores higher (88.5 vs 86.8). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Grok 4.5 or Claude Opus 4.6?
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Grok 4.5 has a lower blended cost. Grok 4.5: $2.00 input / $6.00 output. Claude Opus 4.6: $5.00 input / $25.00 output.
Which has a larger context window, Grok 4.5 or Claude Opus 4.6?
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Claude Opus 4.6 has a larger context window: Grok 4.5 supports 500K tokens vs Claude Opus 4.6 at 1M tokens.
Do both Grok 4.5 and Claude Opus 4.6 support vision?
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Yes, both Grok 4.5 and Claude Opus 4.6 support vision/image input.
What are the key differences between Grok 4.5 and Claude Opus 4.6?
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Key differences: Grok 4.5 is significantly cheaper. Compare full specs on this page.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Grok 4.5 and Claude Opus 4.6 for free on idapt.app to see which performs better for your specific needs.