Halv BlogProduct updates and engineering notes from Halv.https://halv.aiCrux in real sessions: 90% correct, 47% cheaper per answerhttps://halv.ai/blog/crux-sessionshttps://halv.ai/blog/crux-sessionsThe follow-up benchmark: Crux in real multi-question coding sessions on django and sympy. 90% correct answers versus grep's 58% — at 47% less cost per correct answer.Sat, 15 Aug 2026 00:00:00 GMTCrux in sessions: the benchmark that forced a result-format redesignhttps://halv.ai/blog/crux-sessions-deep-divehttps://halv.ai/blog/crux-sessions-deep-diveMethodology and full data for the session-shaped Crux benchmark, the 2.3x token blowup it exposed on sympy, and the Crux 0.6.2 output redesign that turned it into a 59% saving.Sat, 15 Aug 2026 00:00:00 GMTOne of Halv's tools made AI coding agents 45% more accuratehttps://halv.ai/blog/crux-benchmarkhttps://halv.ai/blog/crux-benchmarkWe benchmarked an AI coding agent with and without Crux, our code-index MCP server, in Codex on django and sympy: 45% more correct answers, 24% less cost per answer.Fri, 14 Aug 2026 00:00:00 GMTCrux vs grep: benchmarking an SCIP code index for AI coding agentshttps://halv.ai/blog/crux-benchmark-deep-divehttps://halv.ai/blog/crux-benchmark-deep-diveMethodology and full data for the Crux benchmark: an SCIP code-index MCP server vs grep in Codex CLI, with token-metered paired runs, ablations, and the tuning trail.Fri, 14 Aug 2026 00:00:00 GMT