Grok 4.5 vs DeepSeek V3
xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
Original DeepSeek V3 — the model that put DeepSeek on the map.
No captured outputs for these models yet.
Frequently Asked Questions: Grok 4.5 vs DeepSeek V3▼
Which is better, Grok 4.5 or DeepSeek V3?
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Based on the Capability Index, Grok 4.5 scores higher (88.5 vs 78.7). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Grok 4.5 or DeepSeek V3?
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DeepSeek V3 has a lower blended cost. Grok 4.5: $2.00 input / $6.00 output. DeepSeek V3: $0.20 input / $0.80 output.
Which has a larger context window, Grok 4.5 or DeepSeek V3?
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Grok 4.5 has a larger context window: Grok 4.5 supports 500K tokens vs DeepSeek V3 at 128K tokens.
Do both Grok 4.5 and DeepSeek V3 support vision?
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Grok 4.5 supports vision/image input, but DeepSeek V3 does not.
What are the key differences between Grok 4.5 and DeepSeek V3?
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Key differences: Grok 4.5 has a notably higher capability index (9.8 point gap); DeepSeek V3 is significantly cheaper; only Grok 4.5 supports vision input; only Grok 4.5 offers extended reasoning mode. 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 DeepSeek V3 for free on idapt.app to see which performs better for your specific needs.