Thomson Reuters Spent $40M Training Its Own LLM on a Qwen Base

FinanceYF5 · x · 2026-09-04

Thomson Reuters reportedly spent $40 million training its own LLM, Thomson, built on a Qwen base and continuously trained on 175 years of legal, tax, accounting, and news data. Official benchmarks place it near Claude Opus, ahead of GPT and Gemini rivals — and the company says it has used less than 10% of its data so far. A striking case of vertical-domain LLMs built on open-weight foundations plus proprietary data.

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