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B2B sales conversations use specialized vocabulary: ARR, NRR, CAC, LTV, implementation timeline, procurement process. Generic speech recognition models often fail on these terms, mishearing critical qualification details. AI platforms fine‑tuned on B2B jargon solve this. Domain‑specific models are trained on thousands of B2B sales calls. They recognize industry terms, product names, and competitor mentions. According to Gartner, domain‑fine‑tuned ASR achieves 90‑95% accuracy on B2B terminology, compared to 60‑70% for generic models. Real‑time transcription allows the AI to act on what the prospect says during the call. If a prospect mentions a competitor, the AI can trigger a competitive differentiation script. If they mention "budget approved," the AI can fast‑track escalation. With such systems, the AI responds adaptively, not just from a static script. Custom vocabulary can be uploaded to the platform. Add your product names, competitor terms, and industry acronyms. The model incorporates them, improving accuracy over time. According to Speech recognition benchmarks, custom vocabulary can reduce error rates by 30‑50%. For B2B sales teams, speech recognition accuracy is not a technical detail; it is a conversion driver. A misheard qualification answer leads to wrong prioritization. A missed competitor mention loses a deal. Those platforms with domain‑specific models ensure that every word is captured accurately.