A study analyzing API changelogs from January 2024 to October 2026 reveals that five major AI labs—OpenAI, Anthropic, Google, DeepSeek, and Mistral AI—released a total of 135 new text models. Model release frequency significantly increased from 23 models in the first nine months of 2024 to 44 in the same period of 2025, before slightly decreasing to 40 in 2025. The study also noted a trend where the gap between new version numbers shortened, while entirely new generations of models continued to be released at a slower, but consistent, pace. AI
IMPACT Indicates an accelerating pace of model development and iteration within major AI labs.
RANK_REASON Analysis of public API changelogs to determine model release cadence. [lever_c_demoted from research: ic=1 ai=1.0]
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