chromie.dev vs Relay

chromie.dev and Relay are both workflow automation tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

chromie.dev

Chromie layers deterministic tool calls on top of an AI agent so the agent reasons about what to do, but structured tools handle the execution — every field fill, every form submission, every DOM interaction. Each invocation is logged with inputs, outputs, latency, and task context, so your compliance team has a replay trail rather than an opaque model decision. Self-healing tools re-resolve broken selectors automatically using fallback chains, so a DOM drift on your payer portal doesn't require an emergency fix. The ceiling appears when you need custom tool logic outside what Chromie ships — teams extending into non-standard workflows have to build or integrate additional tooling themselves.

Relay

Relay.app lets you describe a workflow in plain language, then generates a visual step sequence you can edit manually or by prompting again. The core model is fixed-sequence automation — triggers, steps, branches, loops — with AI inserted at specific points for extraction, summarization, or creation, not for deciding what to do next. Approval gates are built in, not bolted on, so a finance director can sign off on an expense before it routes to payment. Reusable 'Sequences' let teams standardize common patterns like lead enrichment or onboarding and propagate updates across every workflow at once. The ceiling appears when logic grows complex: deep conditional branching across many steps pushes against what the visual canvas expresses cleanly.

Attribute	chromie.dev	Relay
Pricing	—	Paid
Price	—	Free–Custom
Free trial	No	No
Open source	No	No
Has API	No	Yes
Self-hosted option	No	No
Platforms	Web-based SaaS	Web-based SaaS (cloud only)
Released	—	2021
Pros	Deterministic tool calls replace pure model guessing at execution time, so a prior auth form fills the same way on run 1 and run 1,000 — which means the receipt mismatch failures that plague baseline agents stop appearing in production logs. Full execution replay with inputs, outputs, latency, and task context logged per invocation, so compliance audits have a structured record instead of a reconstruction exercise after the fact. Self-healing selector recovery via fallback chains resolves DOM drift automatically, so a payer portal update doesn't cascade into a Monday morning incident for your automation team. Two-path integration model — build new workflows or layer deterministic tools onto existing automation — so teams don't have to discard working pipelines to get reliability guarantees. Runtime skill selection routes the right tool to the right step based on task context, which means the agent isn't applying a form-fill tool to a classification step and producing garbage output.	Human approval gates are first-class workflow steps — not external integrations — so run history captures every decision point and teams have a built-in audit trail without adding a separate compliance tool. Natural language workflow generation means an ops manager can describe a process and get a working visual draft without writing automation logic, so the gap between 'I want to automate this' and 'this is running in production' shrinks to hours instead of days. Reusable Sequences let teams define common patterns — lead enrichment, approval routing, onboarding steps — once and update them in one place, so a process change doesn't require editing twenty individual workflows. AI steps are inserted at specific points in a fixed sequence for tasks like data extraction, summarization, or transcription, which means the output is predictable and auditable rather than generated on the fly where errors compound silently. Integration with 200+ apps, including financial tools like Stripe, QuickBooks, and Xero alongside CRMs and communication platforms, so most mid-market operations stacks connect without custom API work.
Cons	Custom tool requirements hit the platform ceiling fast: workflows needing logic or integrations outside Chromie's shipped skill set require building extensions, which means you're maintaining a custom layer before the automation is even fully deployed. Pricing is gated behind a demo call with no public tier structure, so teams evaluating cost at scale — comparing per-run or per-seat economics against open-source browser automation stacks — cannot do that analysis without entering a sales process. Teams with strict procurement timelines or open-source mandates move to alternatives like browser-use or Playwright-based agent frameworks at this point. Self-hosted deployment is not available, which means healthcare and pharma teams with data residency requirements or air-gapped infrastructure cannot run Chromie on their own stack — a hard stop for certain regulated environments regardless of how strong the audit trail is.	Complex conditional logic — four or more branches where each path has its own sub-conditions — strains the visual canvas. Teams building multi-path decision trees end up adding workarounds or restructuring workflows in ways that obscure the logic; at that point, a code-first tool like n8n or a purpose-built BPM platform handles the same requirements with less contortion. Relay.app is not self-hosted and offers no self-hosted option, so teams with data residency requirements or internal-only network policies cannot run it in their own infrastructure — those teams evaluate on-premise alternatives before the trial ends. The platform executes predefined sequences and does not support autonomous goal decomposition, persistent memory across runs, or self-directed iteration — teams that arrive expecting agent behavior discover the tool is workflow-first and must either restructure their expectations or switch to an agent framework like LangGraph or CrewAI for that work.

Bottom line

Only Relay exposes a public API. Choose based on which difference matters most for your workflow.

Comparison data is sourced and verified by the AIDiveForge data pipeline. AIDiveForge is editorially independent.