Build & Market Discovery9 September 2026

Developer AI is becoming an operating layer

Developer AI is becoming an operating layer.

TEARDOWN

Teardown8 September 2026

Mastra Factory

Mastra Factory puts issue intake, planning, implementation and review behind configurable agent stages.

It puts configurable gates between software-delivery stages so teams can keep some steps manual and automate others. Mastra's own table shows the alpha authored 277 of 1,627 merged PRs (17.0%) and closed 222 of 778 issues (28.5%); the same post claims 25-35% and 50-60%, and where a claim and its table disagree the table is the figure worth carrying.

Starter $0/month; Teams $250/month; Enterprise custom pricing

Source: mastra.ai/factory

Teardown9 September 2026

49agents IDE

49agents IDE puts agents, terminals, repos and machines on one infinite canvas.

It treats parallel agent work as a spatial coordination problem instead of a growing stack of tabs and terminal windows.

Free $0; Pro $8/month, marked coming soon pricing

Source: 49agents.com

Teardown9 September 2026

GoModel

GoModel puts multi-provider routing, budgets, caching and failover behind one API.

It combines provider compatibility with budgets, caching, guardrails, load balancing and failover in one self-hosted gateway, with published Windows, macOS, Linux and Docker installation paths.

Pro $499/month or $4,999/year pricing

Source: gomodel.enterpilot.io

What this changes

Teams now need to evaluate systems that coordinate agents, access and supervision around the work, not only the model or agent itself. That shifts buying criteria toward orchestration, policy, visibility and failure handling.