Rectify (formerly Replicate So) vs Cosine

Rectify gives SaaS founders one developer-focused workspace to catch bugs, replay user sessions, monitor uptime, and run support without switching between a dozen tools. The product rebranded from Replicate and now centers on Quanta, an operations agent you steer through conversation rather than dashboards.

Most bug trackers make you configure filters and query builders before you see anything useful. Rectify flips that: you ask Quanta to surface rage-click sessions, draft changelogs from commits, or triage inbox patterns in plain English. The Chrome extension fits teams shipping with Cursor, Lovable, Bolt, Replit, or v0, capturing annotated screenshots, Loom clips, console logs, and network data with each report.

The stack covers monitoring across HTTP, HTTPS, TCP, DNS, and ICMP, on-demand GitHub code scans with file-level findings, roadmaps, changelogs, workflows, and an MCP server that links Claude or Cursor to your scan and feedback data. The site lists 100+ integrations and powers more than 1,000 products.

Pricing uses bring-your-own-key AI: connect OpenAI, Claude, Gemini, Deepseek, or Open Router with zero markup. Paid plans from $29 per month include a 14-day trial with no credit card, and an Idea tier stays free for solo builders.

Cosine ships the Lumen family of coding models and a developer workspace for teams that want AI close to their repos. You can start in a terminal-native flow with MCP tool access and multi-agent orchestration, or run parallel cloud tasks when PMs and engineers need a shared project view.

General chat models spread training across poetry and trivia; Cosine bets the opposite with Lumen models post-trained on production code from real engineering teams. Lumen Outpost scored 59.3% on Niche-Bench in Cosine's published comparisons, ahead of GPT-5.4 at 42.4%, and the lineup adds Scout for cheap codebase mapping plus a forthcoming Sovereign tier for controlled environments.

Developer teams, platform engineers, and regulated orgs use Cosine when they need deployment choice from public cloud to managed single-tenant or fully air-gapped installs. Pricing starts at $19 per month for 4M credits on the Starter plan, with Team and Enterprise tiers scaling credits and lowering per-million add-on rates.