December 17, 2024, marked a significant day for developers in the AI sector, highlighted by announcements from Anthropic. The company revealed several updates that have moved out of beta and are now generally available. Key features include the Models API, which allows users to query models and validate IDs, and the Message Batches API, designed to process large message batches at 50% of the standard cost. Additional updates include Token Counting API for calculating token usage and Prompt Caching for reusing previous prompts. This day also coincided with announcements from OpenAI, indicating a broader trend of development activity within the AI community.