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YAML uses more tokens than JSON for large datasets, analysis finds

A comparison of data serialization formats revealed that YAML uses more tokens than JSON for large datasets, despite being smaller in byte size. This analysis considered ten serialization methods and seven tokenizers, finding that for a hundred records, YAML consumed 21% more tokens than minified JSON, though it was 3% smaller in terms of bytes. AI

IMPACT Understanding token efficiency in data serialization can help optimize prompt engineering and reduce inference costs for large language models.

RANK_REASON Article discusses a technical comparison of data serialization formats in the context of LLMs, but does not announce a new model or product.

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AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

YAML uses more tokens than JSON for large datasets, analysis finds

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  1. Towards AI TIER_1 English(EN) · Chew Loong Nian - AI ENGINEER ·

    GPT-5, Llama And Qwen Agree: YAML Is Smaller Than JSON And Costs More Tokens

    <div class="medium-feed-item"><p class="medium-feed-image"><a href="https://pub.towardsai.net/gpt-5-llama-and-qwen-agree-yaml-is-smaller-than-json-and-costs-more-tokens-a9496ee62ff9?source=rss----98111c9905da---4"><img src="https://cdn-images-1.medium.com/max/1600/1*gPgev9kKHPycL…