GPT 5.1 Codex Mini vs Grok 4.5
Compact coding model for fast, cost-efficient development tasks.
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Frequently Asked Questions: GPT 5.1 Codex Mini vs Grok 4.5▼
Which is better, GPT 5.1 Codex Mini or Grok 4.5?
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Both GPT 5.1 Codex Mini and Grok 4.5 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.
Which is cheaper, GPT 5.1 Codex Mini or Grok 4.5?
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GPT 5.1 Codex Mini has a lower blended cost. GPT 5.1 Codex Mini: $0.25 input / $2.00 output. Grok 4.5: $2.00 input / $6.00 output.
Which has a larger context window, GPT 5.1 Codex Mini or Grok 4.5?
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Grok 4.5 has a larger context window: GPT 5.1 Codex Mini supports 400K tokens vs Grok 4.5 at 500K tokens.
Do both GPT 5.1 Codex Mini and Grok 4.5 support vision?
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Yes, both GPT 5.1 Codex Mini and Grok 4.5 support vision/image input.
What are the key differences between GPT 5.1 Codex Mini and Grok 4.5?
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Key differences: GPT 5.1 Codex 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 5.1 Codex Mini and Grok 4.5 for free on idapt.app to see which performs better for your specific needs.