A developer has created Open PDF Studio, a free, MIT-licensed PDF workbench for Windows, aiming to replicate the functionality of Adobe Acrobat. The application was largely built using Anthropic's Claude models, with Fable 5 initiating the project, Opus 4.8 and Sonnet 5 handling the bulk of the development due to API limits, and Fable 5 completing the final version. The project involved approximately two billion tokens across the Claude family and included a small usage of GPT-5.6. AI
IMPACT Demonstrates AI's capability in complex software development, potentially accelerating tool creation.
RANK_REASON The cluster describes a software product built using AI tools, not a core AI release or research.
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