Flux.ai pricing, explained: plans, ACUs, and value
What Starter and Pro cost, how Flux meters AI work, and which plan fits each stage of a hardware project.
Updated 2026-07-26
Written and verified by John Merton · verified 2026-07-26
The tiers
| Plan | Price per editor | ACUs included |
|---|---|---|
| Starter | $20/mo, or $16/mo billed annually [1] | 10 ACUs/mo [3] |
| Pro | $142/mo, or $112/mo billed annually, roughly a 7x jump from Starter [2] | 100 ACUs/mo per editor [2] |
Values above are limited to what Flux’s own cited pricing page states.
The table covers Flux’s two entry tiers, not its whole lineup: above Pro, Flux lists a Teams tier at $158 per editor per month and an Enterprise tier [2].
How Starter and Pro scale
Starter is a practical entry point for an individual evaluating Flux’s browser-based workflow and AI assistance. It costs $20 per editor per month and includes 10 ACUs[1] [3]. Pro is built for heavier use: $142 per editor per month with 100 ACUs per editor, ten times Starter’s included AI allowance [2].
The move from Starter to Pro is a clear step rather than a gradual upgrade. For a three-editor team, Starter costs $60/mo ($48/mo billed annually) [1] and Pro costs $426/mo [2]. That is a gap of $366/mo, or roughly $4,392/yr, for the same three seats. Annual billing lowers the effective monthly rate to $16 on Starter and $112 on Pro [1] [2]. Teams should choose Pro when the larger AI allowance and expanded workflow replace enough manual engineering time to cover the difference.
ACUs turn AI work into a visible budget
ACU stands for Agent Compute Unit, the unit Flux uses to meter AI feature usage [3]. The Starter plan includes 10 ACUs per month [3]; Pro includes 100 ACUs per editor per month [2]. Flux’s own documentation is explicit that consumption isn’t predictable in advance: “Due to the nature of AI systems, it’s not possible to know how many ACUs a request will consume beforehand.” [4] That means the 10 ACUs included with Starter are a monthly allotment, not a fixed count of predictable actions. The ACU model gives AI usage a visible meter rather than hiding it inside an unlimited-use promise. Review consumption after representative tasks before setting a team budget.
Use the trial to test a complete workflow
A useful Flux trial should cover more than opening the editor. Run one representative design through collaboration, AI assistance, review, and export so you can judge the whole workflow. Flux’s Main Services Agreement, Section 2.5 (“Free Trial”), states that any data a customer enters and any customizations made during the free trial “will be permanently lost unless Customer purchases a subscription to the same Services as those covered by the trial, purchases applicable upgraded Services, or exports such data, before the end of the trial period.” [5]
Common questions
How much does Flux.ai cost?
Flux's Starter plan is $20 per editor per month on monthly billing, or $16 per editor per month when billed annually. Its Pro plan is $142 per editor per month ($112 when billed annually), roughly a 7x jump from Starter, with no tier in between. Above Pro, Flux lists a Teams tier at $158 per editor per month and an Enterprise tier.
What is an ACU in Flux.ai?
ACU stands for Agent Compute Unit, the unit Flux uses to meter AI usage. Flux's Starter plan includes 10 ACUs per month. Flux's own documentation states that it isn't possible to know in advance how many ACUs a given request will consume.
Does Flux.ai have a free trial?
Flux's Main Services Agreement (Section 2.5, "Free Trial") governs its free trial. That section states that any data a customer enters and any customizations made during the trial will be permanently lost unless the customer purchases a subscription to the same services as those covered by the trial or applicable upgraded services, or exports the data, before the end of the trial period.
How much would a 3-editor team pay on Flux Starter versus Pro?
For three editors, Starter costs $60 per month ($48 billed annually) and Pro costs $426 per month, a gap of $366 per month, or roughly $4,392 per year, for the same three seats. Annual billing lowers the effective monthly rate to $16 on Starter and $112 on Pro. Choose Pro once the larger AI allowance is justified by recorded editor time saved exceeding the plan price gap.
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 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 Starter plan includes 10 ACUs (Agent Compute Units) per month. Flux pricing page (verified 2026-07-09, archived copy).
- Flux's documentation states of its AI usage credits: "Due to the nature of AI systems, it's not possible to know how many ACUs a request will consume beforehand." Flux documentation: ACUs (archived copy is the page's content API) (verified 2026-07-09, archived copy).
- Flux's Main Services Agreement (Section 2.5, "Free Trial") states that any data a customer enters and any customizations made during the free trial "will be permanently lost unless Customer purchases a subscription to the same Services as those covered by the trial, purchases applicable upgraded Services, or exports such data, before the end of the trial period." Flux Main Services Agreement §2.5 (archived copy is the page's content API) (verified 2026-07-09, archived copy).
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