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H Company Ships Holo4, Open-Weight Agents That Work Any Software Interface
H company released Holo4, agentic models in 27B dense and 35B-A3B mixture-of-experts sizes, plus an updated Holotron4 Nano, all available on the H Models API and as open weights. Holo4 can drive GUIs, write code, and call MCP or API tools with the same model, scoring 61.7% (27B) and 30.9% (35B-A3B) on OSWorld 2.0 versus 81.8% for Opus 5.5, at much lower cost.
What changes for operators — For a 10-200 person B2B company, the practical draw is not the benchmark score but the interface flexibility: most internal tools, legacy CRMs, and vendor portals have no usable API, forcing manual clicking today. A model that can fall back to GUI control when an API is missing, then switch to API calls where one exists, is directly applicable to automating order entry, ticket triage, or data reconciliation across tools that were never built to be automated. The open weights (BF16, FP8, NVFP4, GGUF) mean a technical team could self-host rather than pay per-call frontier pricing, though the reported OSWorld 2.0 gap versus Opus 5.5 (61.7% vs 81.8%) signals this is a cost-performance tradeoff, not a like-for-like replacement, and should be piloted on a specific workflow before being trusted with production tasks.