Flux.ai vs Altium: AI-native or established ECAD?
Flux offers a simpler AI-assisted workspace. Altium brings the depth and installed base of professional PCB tooling.
Updated 2026-07-26
Written and verified by John Merton · verified 2026-07-26
Flux and Altium should not be treated as identical products with different price tags. Flux packages AI task completion, imports, and multi-editor projects into a newer subscription workflow. Altium Develop is Altium’s professional PCB offering for engineers and small teams [5]. Flux lowers initial setup through a browser workspace; Altium brings mature desktop authoring and managed product-development services.
Flux vs Altium at a glance
| Decision | Flux | Altium Develop |
|---|---|---|
| Entry price | $20/mo Starter [1] | $1,990/yr with one author seat; additional seats are $995/yr [5] |
| AI workflow | AI chat and task completion included on paid plans [2] | Not covered by the cited Altium pricing source |
| Team projects | Pro supports up to 20 editors per project [4] | Professional per-seat annual licensing [5] |
| Migration | Pro includes Altium and Cadence project import [4] | Not covered by the cited Altium pricing source |
Where Flux offers the simpler path
Flux Starter is the easier financial experiment: $20 per editor per month, or $16 when billed annually [1]. It includes AI chat and task completion, 10 monthly ACUs, up to 50 private projects, unlimited public projects, and KiCad part import[2].
Pro is $142 per editor per month [3] and adds 100 ACUs per editor, unlimited private projects, up to 20 editors per project, plus Altium and Cadence project import [4]. For a startup or small team, that combination can make Flux the cleaner way to begin a new standard-complexity project or bring an existing design into an AI-assisted shared workspace.
Where Altium earns its position
Altium Develop is positioned for engineers and small teams. The cited plan is $1,990 per year with one author seat and one workspace; additional Altium Designer author seats are $995 per year each [5]. Altium’s value is the depth of an established professional PCB toolchain and the familiarity it already has in many engineering organizations.
Flux does not need to beat Altium at every advanced workflow to be a strong choice. Its case is narrower and practical: lower entry cost, built-in AI task completion, multi-editor projects, and an import path for teams that want to evaluate a newer operating model without starting every design from scratch.
Which should you choose?
Review the broader PCB design tools guide or see the full breakdown of Flux pricing and ACUs.
Common questions
How much does Flux.ai cost compared to Altium Develop?
Flux Starter is $20 per editor per month, or $16 billed annually. Altium Develop's base package is $1,990 per year with one author seat and one workspace; additional Altium Designer author seats are $995 per year each. Flux Pro is $142 per editor per month and adds a much larger AI-usage allowance.
Can Flux.ai import Altium projects?
Yes. Flux's Pro plan includes Altium and Cadence project import, alongside 100 ACUs per editor, unlimited private projects, and up to 20 editors per project. That import path lets a team bring an existing Altium design into Flux's AI-assisted shared workspace to evaluate the operating model without starting the project from scratch.
What does Flux.ai's Starter plan include?
Flux Starter costs $20 per editor per month ($16 billed annually) and includes AI chat and task completion, 10 monthly ACUs, up to 50 private projects, unlimited public projects, and KiCad part import. It's the easier financial experiment for a startup or small team evaluating whether Flux's AI-assisted workflow is worth the recurring seat cost.
Is Altium Develop good for a small team?
Altium Develop is positioned for engineers and small teams, priced at $1,990 per year with one author seat and one workspace; additional author seats are $995 per year each. Its value is the depth of an established professional PCB toolchain and the familiarity it already has across many engineering organizations.
Sources
- Flux's Starter plan is $20 per editor per month on monthly billing ($16 when billed annually). Flux pricing page (verified 2026-07-09, archived copy).
- Flux's Starter plan includes AI chat and task completion, 10 ACUs per month, up to 50 private projects, unlimited public projects, and KiCad part import. Flux pricing page (verified 2026-07-09, archived copy).
- Flux's Pro plan is $142 per editor per month ($112 when billed annually) and includes 100 ACUs (Agent Compute Units) per editor per month. That is roughly a 7x jump from the $20 Starter plan, with no pricing tier in between; above Pro, Flux lists a Teams tier at $158 per editor per month and an Enterprise tier. Flux pricing page (verified 2026-07-09, archived copy).
- Flux's Pro plan includes AI chat and task completion, 100 ACUs per month per editor, unlimited private projects, up to 20 editors per project, KiCad part import, and Altium and Cadence project import. Flux pricing page (verified 2026-07-09, archived copy).
- Altium's professional PCB design offering, Altium Develop, is positioned as an affordable package for engineers and small teams. The base package is $1,990 per year and includes one Altium Designer author and one workspace; up to four additional author seats are $995 per year each. Altium Develop pricing page (verified 2026-07-09, archived copy).
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