How is driftless different from Spec Kit?

Spec Kit is a free, open source toolkit: it installs templates and skills into your repo, and your AI coding agent executes processes like specify, plan, tasks, implement, and converge. driftless is a managed platform: the BA agent shapes paired PRDs and tech specs, spec gates are enforced by the platform workflow, and persistent agents execute tasks with automated acceptance-criteria validation. Spec Kit gives you the process artifacts. driftless gives you the process plus the platform that runs it.

What does Spec Kit cost compared with driftless?

Spec Kit is free and MIT licensed: you pay for your own coding agent and model usage. driftless has a free tier with 2 agents and BYOK inference, Pro at $100 per seat per month for the first 100 seats and $70 per seat after, and custom Enterprise plans.

Does Spec Kit enforce spec gates?

Spec Kit's quality gates are opt-in: per the project README, clarification, checklists, and consistency analysis are additions you invoke when you need extra quality gates. driftless runs spec gates as part of the platform workflow on every task, so a failed gate stops the work in place.

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driftless vs Spec Kit

Spec Kit is GitHub's open source toolkit for spec-driven development: templates and skills your AI coding agent executes in your repo. driftless is a managed delivery platform: a BA agent shapes the specs, spec gates are enforced by the platform, and persistent agents ship the work. Every competitor fact on this page was verified against the Spec Kit repository on September 24, 2026.

Verified against github.com/github/spec-kit on September 24, 2026. Competitor facts are re-verified before any change to this page ships.

Feature comparison

Spec Kit gives your agent a structured process. driftless gives you the process and the platform that runs it.

Capability	driftless	Spec Kit
What it is	Managed delivery platform hosted at app.godriftless.ai	Open source toolkit (MIT) installed into your repository
Setup	Nothing to install; free tier available in the hosted app	Python 3.11+, uv, and a supported AI coding agent you bring
Requirements shaping	BA Agent converts conviction into paired PRDs and tech specs	Skills run in your agent's chat: constitution, specify, plan, tasks, implement, converge
Spec gates	Platform-enforced: structural and semantic validation on every task, and a failed gate stops the work	Clarification, checklists, and consistency analysis are opt-in additions you invoke when needed
Tracking	Kanban task board, status workflow, nine dependency link types	Artifacts live in your repo under .specify/
Verification	Automated acceptance-criteria validation in the Verify phase	Convergence loop: repeat implement and converge until the report says Converged; bug fixes record verified, partial, or failed verdicts
Spec-to-task traceability	Bidirectional: every requirement traces to a task, every task to a requirement	Not documented in the Spec Kit README as of September 24, 2026
Analytics and cost	Delivery metrics and per-model cost dashboards	Not documented in the Spec Kit README as of September 24, 2026

Pricing comparison

Spec Kit costs nothing and runs entirely on your own agent and models. driftless is a paid platform whose free tier covers the full product experience at small scale.

Pricing	driftless	Spec Kit
Pricing model	Per seat, flat monthly price	Free, MIT-licensed open source
Free tier	$0: 1 user, 2 agents (BA + Coding), BYOK inference, full product experience at scale limits	Entire toolkit free; you provide and pay for the coding agent and models
Paid tiers	Pro: $100/seat/mo for the first 100 seats, $70/seat after. Enterprise: custom, per seat	None; self-managed
Operations	Fully managed: hosting, agents, analytics	Self-managed: you run the CLI, the agent, and the repo
Team scale	Org-scoped agents; SSO and SCIM at the Enterprise tier	Per-repo installs; no hosted organization controls in the README

FAQ

How is driftless different from Spec Kit? Spec Kit is a free, open source toolkit: it installs templates and skills into your repo, and your AI coding agent executes processes like specify, plan, tasks, implement, and converge. driftless is a managed platform: the BA agent shapes paired PRDs and tech specs, spec gates are enforced by the platform workflow, and persistent agents execute tasks with automated acceptance-criteria validation. Spec Kit gives you the process artifacts. driftless gives you the process plus the platform that runs it.
What does Spec Kit cost compared with driftless? Spec Kit is free and MIT licensed: you pay for your own coding agent and model usage. driftless has a free tier with 2 agents and BYOK inference, Pro at $100 per seat per month for the first 100 seats and $70 per seat after, and custom Enterprise plans.
Does Spec Kit enforce spec gates? Spec Kit's quality gates are opt-in: per the project README, clarification, checklists, and consistency analysis are additions you invoke when you need extra quality gates. driftless runs spec gates as part of the platform workflow on every task, so a failed gate stops the work in place.

See the difference in your own workflow

Start free with two agents and BYOK, or read the pricing page for tier details. The Cascades page covers the shape, gate, ship, verify cycle, and the BA Agent page covers requirements shaping.

Get started free