Comparison · AI Models & LLMs
Grok 4.7 vs GPT-6 Luna
The same method as our rankings: scores from the engine, sourced data, verified prices.
Details: GPT-6 Luna →Details: Grok 4.7 →
GPT-6 Luna
OpenAI
Full sheet →- Context window
- 1.05M tokens
- Maximum output
- 128k tokens
- Input cost per 1M tokens
- $0.10
- Output cost per 1M tokens
- $0.50
Grok 4.7
xAI
Full sheet →- Context window
- 500k tokens
- Input cost per 1M tokens
- $2.00
- Output cost per 1M tokens
- $6.00
The numbers side by side
Each bar is the product's verified figure; on every row the longer bar is the higher of the two values.
- Context windowhigher is better
- Input cost per 1M tokenslower is better
- Output cost per 1M tokenslower is better
Who wins where
- For long documentsGPT-6 LunaContext window
- Cheaper to readGPT-6 LunaInput cost per 1M tokens
- Cheaper to writeGPT-6 LunaOutput cost per 1M tokens
GPT-6 Luna: reads images
Data sheet side by side
Memory and answer length
Context window✓1.05M tokens110% more500k tokens
Maximum output128k tokensNot stated
API prices
Input cost per 1M tokens✓$0.1095% less$2.00
Cached input cost per 1M tokens$0.01Not stated
Output cost per 1M tokens✓$0.5092% less$6.00
Knowledge and abilities
Knowledge cutoffMay 2026Not stated
Reads imagesYesNot stated
Calls tools and functionsYesYes
What a month costs
Change the volumes: the cost is worked out from the verified list prices above.
GPT-6 Luna$0.45per month · $5.40 per yearThe cheaper one — you save $6.55 per month
Grok 4.7$7.00per month · $84.00 per year
The scenarios are only starting points to edit, not data about your use. List prices without discounts, time-of-day rates or taxes.
Questions and answers
For long documents: GPT-6 Luna or Grok 4.7?
GPT-6 Luna: 1.05M tokens against 500k tokens (Context window).
Cheaper to read: GPT-6 Luna or Grok 4.7?
GPT-6 Luna: $0.10 against $2.00 (Input cost per 1M tokens).
Cheaper to write: GPT-6 Luna or Grok 4.7?
GPT-6 Luna: $0.50 against $6.00 (Output cost per 1M tokens).