TabTin vs Cognition AI

The split is scope and control. TabTin's Main Agent fans a task into research, build, and verification sub-agents that share one context, so the same goal, team rules, and delivery standards persist across handoffs. It covers four surfaces: code (reads repos, edits, runs tests with visible diffs), documents (drafting, rewriting, annotation with saved versions), spreadsheets (turns scattered info into filterable, countable records), and browser (opens live pages, extracts structured data). Every write is preceded by a Checkpoint with execution-state rollback, and publish/write actions need human approval; repo permissions are enforced per team member and connector. There are 48 official Skills packages, and the connector set is GitHub and browser — the integration list is intentionally thin.

Cognition is narrower but deeper on code. Devin autonomously plans, codes, tests, and creates pull requests, then auto-fixes review comments. SWE-2 is the current frontier model (September 2026), with SWE-1.7 as the cheaper frontier-tier option, and Fusion routes work across model tiers for 60% lower cost in Devin Desktop and the CLI. FrontierCode scores whether generated code is actually merge-worthy. Auto-Triage turns monitored bugs into fix PRs, the Security Vulnerability Remediation Program clears backlog at scale, and sessions persist across runs rather than restarting. Native Windows VMs and Android emulator integration cover cross-platform builds and mobile testing — neither appears in TabTin's feature set.

TabTin is freemium and open source: the current release is dated 9.21, you download it, and you carry the cost of running and maintaining it. There is no per-seat quote to negotiate and no contract, but also no vendor SLA — the trade is setup time and operational ownership for zero license line item. Its stated not-for list explicitly excludes users who need a documented public API or CLI for custom automation, so budget for integration work accordingly.

Cognition AI is pricing_type: contact. Nothing published, no self-serve tier — Cognition's own not-for list includes buyers who need published self-serve pricing before they can start. The cost story is internal rather than posted: SWE-1.7 is positioned as frontier intelligence at a fraction of the cost, and Fusion is reported to deliver frontier performance at 60% lower cost than routing everything to the top tier. For procurement that means an enterprise contract conversation, with the $10M guarantee and FedRAMP High In-Process status as the levers. If you cannot get through a sales cycle, TabTin is the only one of the two you can actually start using today; if you need a signed outcome guarantee, only Cognition offers one.