YC-backed agent Reason opens $50/mo Pro plan, claims 59.1% benchmark win over Codex

testingcatalog · x · 2026-11-14

TestingCatalog reports that Reason Machines (YC F26) has opened paid testing for its agent product Reason: a $50/month Pro plan with a 3-day free trial. The product positions itself as making AI agents work together, claiming 20,000+ engineers at Databricks, Docker and ByteDance use it. Its ReasonGPT-6 scores 59.1% on Astra vs Codex's 58.2%. It ships as an API (start sessions via curl), an app aggregating tasks from Claude Code/Codex/Cursor, and a "Teammates" mode handling on-call and perf work like cutting p95 from 212ms to 96ms.

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