OpenAI's tokenizer is ~30% more efficient than Anthropic's
ns123abc · x · 2026-08-16
The post highlights that OpenAI and Anthropic use different tokenizers, with OpenAI's being significantly more efficient. Given that API costs are calculated per token, this results in approximately 30% fewer tokens for the same content compared to Anthropic, which is a significant factor for cost. The post also comments on the strategy of competitor-referential positioning.
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