Users on Reddit are reporting that Anthropic's new Sonnet 5 model is proving to be significantly more expensive and less efficient than expected, even costing more than the Opus 4.8 model. Initial tests indicate Sonnet 5 can consume a large portion of usage windows and perform extensive research searches, leading to prolonged processing times and higher costs. While the quality of the output is noted as good, the model's literal interpretation of prompts and its tendency to perform deep research can lead to unexpected usage and expense, a behavior not observed with Opus 4.8. AI
IMPACT Users are advised to be cautious with Sonnet 5's prompt engineering to avoid unexpected costs and usage.
RANK_REASON User-generated commentary on a recently released model's performance and cost.
AI-generated summary · Google Gemini · from 3 sources. How we write summaries →
