OpenAI Tokenizer 30% More Efficient Than Anthropic's

Analysis reveals OpenAI's tokenizer is about 30% more efficient than Anthropic's, making the same TypeScript code cost 73% more on Claude than GPT. This highlights that different tokenization methods make direct cost comparisons per million tokens misleading.

2026-08-16 ~ 2026-08-17 · 2 related posts

• OpenAI's tokenizer is ~30% more efficient than Anthropic's — ns123abc · 2026-08-16
• Same TypeScript Costs 73% More on Claude Than GPT: Tokenizer Differences Ignored — gabrielchua · 2026-08-17