Bolt.new vs Coherence

Bolt.new and Coherence are both coding assistants 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.

Bolt.new

Built by StackBlitz, Bolt lets you describe a web app in plain language and get a running prototype with hosting, a database, and authentication included — no separate accounts required. The vendor states model routing picks the right LLM for each task, so you're not manually switching between agents. Design system imports from Figma or component libraries like Shadcn and Material UI let teams build on-brand without starting from scratch. The ceiling appears when projects grow past prototype fidelity: complex business logic, custom server-side workflows, or deep third-party integrations push you outside what a prompt-driven canvas can express. At that point, the generated code becomes the starting point for a hand-rolled codebase.

Coherence

Coherence scans the links between code, docs, architectural decision records, tests, metrics, generated files, and API endpoints — and flags where those links have snapped. It runs locally, deterministically, with no external API calls by default, which means it fits inside a pre-commit hook or CI pipeline without sending your codebase anywhere. The checks are rule-based, not LLM-driven, so results are repeatable run-to-run. Where it breaks: Coherence detects drift but does not fix it, so the remediation loop is still manual. Teams with loosely structured repos get limited signal until they invest time defining what relationships Coherence should track.

Attribute	Bolt.new	Coherence
Pricing	Paid	Free
Price	$25/mo	—
Free trial	No	No
Open source	No	Yes
Has API	No	No
Self-hosted option	No	Yes
Platforms	—	Linux, macOS, Windows (via Go binary)
Pros	Integrated hosting, database, and authentication ship with every project, so you avoid the setup tax of wiring together separate infrastructure services before the first prototype is testable. Automatic model routing selects the LLM matched to each task, which means you don't lose a sprint debugging why the wrong model was chosen for a code-generation step. Design system imports from Figma, Shadcn, Material UI, and others let teams generate on-brand output from the first prompt, avoiding the rework cycle of restyling generic scaffolding. Built-in context management handles larger project sizes than earlier generations of the tool, so complexity doesn't force you to restart or manually chunk your project. SEO configuration is included by default, which means a marketing or product team can ship a campaign page without a separate optimization pass.	Deterministic, no-LLM-call checks by default, so CI gates run at consistent speed and cost without per-execution API spend bleeding into your infrastructure bill. Runs fully locally with a self-hosted option, which means your source code never leaves the machine during a standard scan — relevant for teams under compliance constraints that prohibit sending code to third-party services. Git-native integration supports pre-commit hooks, so drift between a changed implementation file and its paired doc or test surfaces before the commit lands rather than after a reviewer catches it in review. Tracks relationships across multiple artifact types — docs, ADRs, tests, generated files, metrics, API endpoints — in a single pass, so teams avoid writing separate linting scripts for each category of consistency problem. Open-source with no commercial tier, so there is no feature wall that forces a pricing conversation before you can wire it into a production pipeline.
Cons	Custom server-side logic — API middleware, complex authentication flows, background jobs — cannot be fully expressed through a chat prompt. Teams needing this level of control export the generated code and maintain it as a standard codebase, which means Bolt becomes a scaffolding tool rather than an ongoing build environment. There is no self-hosted deployment option and the codebase is not open-source, so teams operating under data residency or compliance constraints that require on-premise generation have no supported path and must switch to an open-source alternative like Dify or a self-hosted code generation pipeline. The Bolt Agent Max model — described on the page as the higher-intelligence routing tier — is a paid-only feature. Teams on the free tier are capped at standard model quality, which means the advertised error reduction and reasoning depth apply fully only after upgrading.	Coherence only detects drift — it does not suggest or apply a fix. Every flagged inconsistency requires a manual triage and repair step, so in high-velocity repos where an AI agent is committing dozens of changes per day, the volume of flags can outpace the team's capacity to act on them. The consistency checks are only as good as the ontology you define upfront. In a repository where file relationships have never been formally mapped, the initial configuration work is non-trivial, and the tool produces no signal on relationships it does not know about — meaning teams get a false sense of coverage before that mapping is complete. There is no API surface and no programmatic output format described in the scraped source beyond CLI use, which means teams that want to feed drift results into a dashboard, ticketing system, or custom remediation workflow have to build that integration themselves from CLI output parsing. Teams that need AI-assisted remediation alongside detection — where the tool not only flags that a doc is stale but also drafts the update — will hit the ceiling of what Coherence does and move to a heavier agentic code-review tool that closes the loop rather than opening a ticket.

Bottom line

Bolt.new is paid while Coherence is free; Coherence is open source. Choose based on which difference matters most for your workflow.

Frequently asked questions

What is the difference between Bolt.new and Coherence?

Bolt.new is Paid, while Coherence is Free and open source. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is Bolt.new better than Coherence?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.