Legasite vs Cosine

Legasite moves legacy websites into modern React and Next.js templates without rebuilding from scratch. You pick a template, drop in an existing site URL, and the platform extracts content, maps it to the layout, and generates downloadable source code in about 10 to 20 minutes.

The workflow centers on automated content extraction rather than manual copy-paste. Legasite pulls text, structure, and images from the source site, then populates a human-written template so the output follows component-based patterns with Tailwind CSS styling. You get a ZIP of real code you can deploy to Vercel, Netlify, or your own server.

It targets web agencies, freelance developers, and in-house dev teams handling client redesigns or internal UI modernization. The pitch is cutting migration grunt work so you spend time on customization and features instead of transferring content page by page.

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.