Developer Trends Update for June 29, 2026

Developer trends data has been updated through June 28, 2026, with analysis and projections recalculated weekly due to the volatile nature of weekly data, making month-over-month and several-month assessments more reliable for identifying sustained trends. AI model fine-tuning has seen a significant 62% increase week-over-week and a projected 16% rise month-over-month, despite a decline in total mentions since February and March, with expectations for substantial growth as AI model cost efficiency improves. Token efficiency is gaining traction over tokenmaxxing, and fine-tuning with tailored data sets is one method to achieve this. Although harness engineering showed a 126% weekly increase, it started from a low base, and its monthly data indicates significant sustained momentum. Voice AI remains flat weekly and monthly, taking a breather after recent growth, but is expected to become increasingly important. A new trend, Local AI, has been added, tracking developments with open weighted models running locally, and historical data can be backfilled. The trends dashboard helps to differentiate between sustained developer trends and short-term noise by reviewing risers and decliners over several months.

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