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Gemini 3.8 Flash Google Grok 4.20 Reasoning xAI
Input $0.75 $1.25
Output $3.75 $2.50
Blended $1.50 $1.56
Context window 1.05M 1M
Max output 66k No data
Output speed 137 No data
Quality 60.1 No data
Reasoning 71.6 No data
Coding 56.6 No data
Value 9.8 No data
Vision ✓ ✓
Reasoning ✓ ✓
Tool calling ✓ ✓
Structured output ✓ ✓
Prompt caching ✓ ✓
Batch API ✓ ✓
Licence Proprietary Proprietary
API model id gemini-3.8-flash grok-4.20-0309-reasoning

At a glance

Input price, per million tokens
  1. Gemini 3.8 FlashGoogle$0.75
  2. Grok 4.20 ReasoningxAI$1.25
Output price, per million tokens
  1. Gemini 3.8 FlashGoogle$3.75
  2. Grok 4.20 ReasoningxAI$2.50
Context window
  1. Gemini 3.8 FlashGoogle1.05M
  2. Grok 4.20 ReasoningxAI1M

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