Fermat

Fermat is a generative AI toolbox for fashion and luxury design, covering work from moodboards to realistic renders, materials, and virtual model fitting. Its 40-plus tools are organized by workflow. Designers can turn apparel sketches into photorealistic images and preview designs in fabric before making a sample, then adjust sleeves, hems, necklines, fit, and length without redrawing. Custom Styles uses uploaded visual references to guide image generation. A no-code Tool Editor can package public or private AI models in internal company frontends. Enterprise adds batch processing, API access, custom workflows, and custom tools. Fermat says generations, prompts, references, and uploads are not used to train its models or third-party foundation models, and customers keep intellectual property ownership of generations. Its security page lists SOC Type I and SOC 2 Type II certification. The free Starter plan has 1 credit; each image generation uses 1 credit and each video uses 4. Pro costs $30 a month for 150 monthly credits; Studio costs $250 a month for 500 monthly credits. Enterprise pricing is by contact.

Fermat combines sketch rendering, design iteration, and team tooling in one fashion-focused AI workspace. The free plan offers a limited way to start, while larger credit allowances and team features require paid plans.

Fermat suits fashion and luxury designers who want AI tools for developing and iterating on designs. Pro is described as suited to individuals and freelancers, while Studio is aimed at small teams and agencies.

Fermat is a fashion-focused AI workspace for designers who want to turn apparel sketches into realistic visuals and refine garment concepts. Its workflow-specific tools and privacy controls make it a strong fit for individuals and teams developing fashion imagery; the one-credit free tier is too limited for sustained exploration.

Overview

Fermat groups more than 40 generative tools by workflow, covering fashion design from moodboards to realistic renders, materials, and virtual model fitting. That specialization gives apparel designers a more directed toolkit for visualizing garments than a broad image-generation workspace. Its paid plans make the most sense when sketch rendering and repeated design iteration are regular parts of the work.

Key features

• Sketch rendering: Convert apparel sketches into photorealistic images and preview designs in fabric before making a sample. This helps designers assess a visual direction before committing to physical development.
• Design iteration: Change sleeves, hems, necklines, fit, and length without redrawing. These targeted edits suit designers refining a concept, though each image generation costs one credit.
• Custom Styles: Upload visual references and train image models to follow a chosen style. That gives brands a way to steer image creation toward their own visual direction.
• No-code Tool Editor: Wrap public or private AI models in internal company frontends. This is useful for companies that want to give teams a tailored interface to their tools.
• API and automation: Enterprise adds batch processing, API access, custom workflows, and custom tools, making it the plan aimed at integrating Fermat into larger processes.
• Privacy and ownership: Fermat says generations, prompts, references, and uploads are not used to train its models or third-party foundation models. Customers retain intellectual property ownership, and each brand has a private, isolated workspace. SOC 2 certification, including SOC Type I and SOC2 Type II, and enterprise options such as SSO, on-premises deployment, team and role controls, model opt-outs, and GDPR compliance address organizational requirements.

Pricing

Fermat charges by monthly credits: an image generation uses one credit and a video generation uses four. The free Starter plan costs nothing and includes one credit, enough for a single image generation but little room to compare directions.

• Pro monthly: $30 a month, billed monthly, for 150 credits per month. It includes the latest AI models and updates, an assets library, image-model training, full content ownership, a commercial license, high-resolution export, and private generations. The pricing page describes Pro as best for individuals and freelancers. It is the practical entry point for regular solo use, though video generations draw down its allowance four times faster than images.
• Studio monthly: $250 a month, billed monthly, for 500 credits per month, team access, unlimited users, 8/5 support, and Pro features. It is positioned for small teams and agencies; the higher monthly cost buys shared team access and support, with a larger credit pool.
• Pro annual: $330 a year, billed yearly, with 150 credits per month and the Pro features above. The pricing page also shows $360, so the annual amount is presented inconsistently. It includes the option to buy more credits as needed.
• Studio annual: $2,700 a year, billed yearly, with 500 credits per month, unlimited users, team access, 8/5 support, and Pro features. The page also shows $3000. It includes the option to buy more credits as needed.
• Enterprise: Custom pricing, billed by contacting Fermat, with custom monthly credits, white label, a customer success manager, custom SLA, SSO, batch processing and API, custom workflows, and custom subdomain deployment. Monthly and annual options are offered.

Pro and Studio credits renew on the 1st. The annual plans retain the same monthly credit allowances, while allowing additional credits to be bought as needed.

Platforms

Fermat is available on the web and through an API. The API is included among Enterprise features.

Who it's for

Fermat is best for fashion designers, freelancers, agencies, and brands that need apparel-specific image creation, repeatable design changes, or private team workspaces. Pro suits individual and freelance workflows; Studio is the better fit for small teams that need shared access and support. Organizations that require SSO, custom workflows, or batch API processing will need Enterprise. It is a weaker fit for casual exploration: one free credit provides almost no ongoing capacity.

Pros and cons

• Pro: Apparel sketch rendering and garment-specific iteration address fashion design tasks directly.
• Pro: Private brand workspaces, customer ownership, and stated limits on training use support sensitive creative work.
• Pro: Studio allows unlimited users, so small teams are not priced by seat.
• Con: The free plan's single credit only covers one image generation, leaving little room to explore.
• Con: Video costs four credits per generation, which can make the monthly allowance feel tighter for video-heavy work.
• Con: The annual Pro and Studio prices are shown with two different amounts, complicating price comparison.

Alternatives

Choose Fashion Diffusion if a lower monthly entry point and access across Android, iOS, macOS, web, and API matter more: its Starter plan is $12 a month for 100 credits, with a credit bank capped at 300, 4K images, 1080p AI videos, and developer API access. Choose FLORA Fashion Studio for a free plan with one seat, three active projects, and up to 17 free generations, or a Starter plan at $18 a month per seat. Choose Gendo if its free web plan fits: it includes one active canvas, up to 50 assets, unlimited generations, one collaborator, watermarks, and history limited to 10 image sets. LookX AI is another web option, with a free Basic plan offering 100 images and normal-lane access for generation and training tasks.

Raspberry AI Prints & Patterns offers a free plan with 50 one-time credits and no card requirement. Spacely AI offers a free forever plan with 40 trial credits, high-resolution downloads, private mode, and a commercial license. Neolocus AI has a free plan with 30 credits and no premium features. SparkStation offers free individual creator access with pay-as-you-grow token pricing and no seat minimums. For a broader category shortlist, browse AI Sketch-to-Image Generators.

Verdict

Fermat is a clear choice for fashion professionals who need sketch-to-render work, garment-level iteration, and control over private brand imagery in one workspace. Its main advantage is the focus on apparel design, backed by team and enterprise options. Look elsewhere if a meaningful free allowance or a lower-cost way to experiment matters more than that specialized workflow.