Flux AI vs LLMStack
Side-by-side comparison · Updated September 2026
| Description | Flux1.ai is an independent image and video generation service with a multi-model web workspace and credit-based plans. It offers FLUX models developed by Black Forest Labs alongside other models, but explicitly disclaims affiliation with BFL. Paid API access requires approval and a completed credit or subscription purchase. Its dedicated Image to Image page accepts a reference upload or image URL, a text prompt, reference-strength control, aspect-ratio choices and an optional seed. The upload field lists PNG, JPG, JPEG and WebP up to 4.5 MB, and the displayed Run button shows 6 credits. That route explicitly offers new users 10 free credits after login; it does not describe a recurring free allowance. Review the current displayed charge before running a job. This is a reference-editing route, distinct from text-to-image and image-to-video. | LLMStack is a source-available builder for AI agents, workflows and chatbots that combine model calls with your own data. Its visual builder can chain multiple models and connect data sources, making it more suitable for assembling an application or process than for simply opening a personal chat app. The project documents deployment on your own infrastructure and points to Promptly as its hosted offering. Supported data inputs include documents, websites and connected sources such as Google Drive and Notion. The builder provides preprocessing and vectorization for retrieval workflows. Apps can be shared publicly or with selected people, and viewer and collaborator permissions control access to shared work. The repository also documents HTTP API access and Slack or Discord triggers. Plan for infrastructure, model-provider usage, credentials and permissions as separate decisions. Installing a self-hosted builder does not make externally hosted models free or keep every data request local. Start with a limited workflow and representative documents, review the generated output, and confirm the permissions required by each connected source before expanding access. Compare AnythingLLM when a document-chat workspace is the main need; LLMStack is oriented toward composing the application and its workflow. |
| Category | Image Generation | AI Assistant |
| Rating | No reviews | No reviews |
| Pricing | Freemium | Unknown |
| Starting Price | Free | N/A |
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| Tags | image generationvideo generationmulti-model workspaceAPIcredits | Open sourceAI agentsWorkflowsApplicationsData |
| Features | ||
| Web workspace for image and video generation | ||
| Access to 40+ image and video models on paid plans | ||
| Monthly subscription credits and one-time credit purchases | ||
| API with administrator approval and paid credit requirement | ||
| Private generation listed on paid plans | ||
| Commercial license listed on paid plans | ||
| Watermark-free Fast Mode listed on paid plans | ||
| Usage records with model-specific credit debits | ||
| Reference-image workflows on supported models | ||
| Subscription credits spent before one-time credits | ||
| Visual AI workflow and model-chain builder | ||
| Data imports from documents, websites and connected services | ||
| Document preprocessing and vectorization | ||
| Viewer and collaborator permissions | ||
| Self-hosted deployment instructions | ||
| Hosted offering through Promptly | ||
| HTTP API access for apps and chatbots | ||
| Slack and Discord workflow triggers | ||
| View Flux AI | View LLMStack | |
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