Claude Token Counter, now with model comparisons
Claude's token counter just got a competitive upgrade—now you can see how much you're overpaying vs. GPT-4.
Why it matters
A developer-facing tool that adds model comparison capabilities to Claude's token counting feature—lowering friction for teams evaluating models by cost and efficiency. Useful for engineering leaders optimizing LLM spend.
The key facts
8 to knowClaude Token Counter gains model comparison feature
Published April 20, 2026
Tool enables cross-model token cost analysis
Developer-focused feature ship from Anthropic ecosystem
Claude token counter now includes model comparison functionality
Tool enables developers to compare tokenization across models
Supports prompt optimization and cost estimation
Published April 20, 2026 on Simon Willison's blog
Go to the source
Simon Willisonsimonwillison.net