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GPT-5.4 Mini OpenAI Legacy Grok 4.20 Reasoning xAI
Input $0.75 $1.25
Output $4.50 $2.50
Blended $1.69 $1.56
Context window 400k 1M
Max output 128k No data
Output speed 241 No data
Quality 51.5 No data
Reasoning 57.8 No data
Coding 61.5 No data
Value 7.5 No data
Vision ✓ ✓
Reasoning ✓ ✓
Tool calling ✓ ✓
Structured output ✓ ✓
Prompt caching ✓ ✓
Batch API ✓ ✓
Licence Proprietary Proprietary
API model id gpt-5.4-mini grok-4.20-0309-reasoning

At a glance

Input price, per million tokens
  1. GPT-5.4 MiniOpenAI$0.75
  2. Grok 4.20 ReasoningxAI$1.25
Output price, per million tokens
  1. GPT-5.4 MiniOpenAI$4.50
  2. Grok 4.20 ReasoningxAI$2.50
Context window
  1. GPT-5.4 MiniOpenAI400k
  2. Grok 4.20 ReasoningxAI1M

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