Stytch vs Cosine

Stytch gives developers one API for login, authorization, and fraud checks in B2B and consumer apps. You add passkeys, SSO, SCIM, MFA, and machine-to-machine tokens without stitching Auth0-style add-ons to a separate risk vendor.

Where many auth platforms gate enterprise features behind sales calls, Stytch includes SSO, RBAC, and multi-tenancy in its pay-as-you-go tier with 10,000 monthly active users included. It also ships an embeddable admin portal so customers configure SAML and SCIM themselves.

Backend engineers, platform teams, and AI product builders use Stytch after Twilio acquired it to cover human users and agent identities in the same stack.

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.