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In 2026, synthetic data—training data generated by an LLM rather than authored by a human—has become the default supervision source for almost every specialized model being fine‑tuned. …

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In 2026, synthetic data generated by large language models (LLMs) has become the default supervision source for specialized model training, with techniques such as Self‑Instruct, Evol‑Instruct, distillation …

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In 2026, the AI community has largely moved past experimental use of synthetic data to make it the primary source of supervision for fine‑tuning specialized models. Almost every modern open‑weight instruct …