GPT 5.4 Mini vs Grok 4.5
GPT-5.4 distilled into a fast, cost-efficient model for high-throughput workloads.
xAI's Opus-class flagship for frontier coding, agentic tool use, and knowledge work.
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Frequently Asked Questions: GPT 5.4 Mini vs Grok 4.5▼
Which is better, GPT 5.4 Mini or Grok 4.5?
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Based on the Capability Index, Grok 4.5 scores higher (88.5 vs 80.8). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, GPT 5.4 Mini or Grok 4.5?
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GPT 5.4 Mini has a lower blended cost. GPT 5.4 Mini: $0.75 input / $4.50 output. Grok 4.5: $2.00 input / $6.00 output.
Which has a larger context window, GPT 5.4 Mini or Grok 4.5?
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Grok 4.5 has a larger context window: GPT 5.4 Mini supports 400K tokens vs Grok 4.5 at 500K tokens.
Do both GPT 5.4 Mini and Grok 4.5 support vision?
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Yes, both GPT 5.4 Mini and Grok 4.5 support vision/image input.
What are the key differences between GPT 5.4 Mini and Grok 4.5?
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Key differences: Grok 4.5 has a notably higher capability index (7.7 point gap); GPT 5.4 Mini 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 GPT 5.4 Mini and Grok 4.5 for free on idapt.app to see which performs better for your specific needs.