Claude Token Counter, now with model comparisons

📰 Simon Willison's Blog

Learn how to compare token counts across different Claude models using Simon Willison's token counter tool and understand the implications of token inflation on pricing

intermediate Published 20 Apr 2026
Action Steps
  1. Use the Claude Token Counter tool to compare token counts across different models
  2. Upload text or images to the tool to get token counts
  3. Compare the token counts and pricing implications between different models like Opus 4.7 and 4.6
  4. Test the tool with different input types, such as text and images, to see the variations in token counts
  5. Analyze the results to understand the impact of token inflation on your costs
Who Needs to Know This

Developers and data scientists working with LLMs can benefit from this tool to optimize their model usage and costs

Key Insight

💡 Token inflation in newer models like Opus 4.7 can lead to higher costs despite the same pricing as older models

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🤖 Compare token counts across Claude models with Simon Willison's token counter tool and optimize your LLM usage! 💡
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