ComfyUI vs Flux vs Leonardo.ai vs Replicate
A side-by-side look at ComfyUI, Flux, Leonardo.ai and Replicate for filmmakers: what each one can do, what it costs, and where they actually differ.
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Node-based workflows for image, video and audio generation, run locally or on Comfy Cloud
- Price
- Local app free (GPL-3.0); Comfy Cloud Standard $20/mo ($16/mo billed yearly)
- Learning
- Steep
- Best for
- Filmmakers who need a repeatable, documented process for a series of shots
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Image model family for accurate text and photoreal stills, plus FLUX 3 video with native audio
- Price
- Pay per image on the API, from $0.014 (FLUX.2 klein 4B). Open weights are free for non-commercial use; commercial open-weights licences are quoted by sales.
- Learning
- Moderate
- Best for
- Key art and concept frames where legible text in the image matters
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Image and video generation with a canvas, Motion animation and third-party video models
- Price
- See the vendor's pricing page
- Learning
- Easy
- Best for
- Concept art and key-art stills that later become motion tests
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API to run hosted image, video and audio models, billed per second of GPU time or per output
- Price
- Pay per second of hardware: $0.000225/s (T4) to $0.001525/s (H100). No monthly plan on the pricing page; enterprise is custom.
- Learning
- Moderate
- Best for
- Batch-generating stills or frames overnight, such as concept art or look-dev variations
The short version
Where they differ
- Flux is the only one without third-party models.
All 4 offer: text to image, text to video, image to video, public API.
Feature by feature
ComfyUI vs Flux vs Leonardo.ai vs Replicate: capabilities
| ComfyUI | Flux | Leonardo.ai | Replicate | |
|---|---|---|---|---|
| Price | Local app free (GPL-3.0); Comfy Cloud Standard $20/mo ($16/mo billed yearly) | Pay per image on the API, from $0.014 (FLUX.2 klein 4B). Open weights are free for non-commercial use; commercial open-weights licences are quoted by sales. | See the vendor's pricing page | Pay per second of hardware: $0.000225/s (T4) to $0.001525/s (H100). No monthly plan on the pricing page; enterprise is custom. |
| Infinite canvas | Partial | No | Yes | No |
| Node / flow builder | Yes | No | Partial | Not confirmed |
| AI agent | Partial | No | Not confirmed | No |
| Chat assistant | Yes | No | Not confirmed | No |
| Team collaboration | Partial | Not confirmed | Partial | Not confirmed |
| Text to image | Yes | Yes | Yes | Yes |
| Image editing | Yes | Yes | Yes | Not confirmed |
| Text to video | Yes | Yes | Yes | Yes |
| Image to video | Yes | Yes | Yes | Yes |
| Video to video | Partial | Partial | Not confirmed | Not confirmed |
| Native audio in video | Not confirmed | Yes | Partial | Yes |
| Lip-sync | Not confirmed | Yes | Not confirmed | Not confirmed |
| Voice / TTS | Not confirmed | Partial | Not confirmed | Yes |
| Music & SFX | Yes | Partial | Not confirmed | Yes |
| Upscaling | Partial | Yes | Partial | Not confirmed |
| Character consistency | Not confirmed | Partial | Partial | Not confirmed |
| Camera control | Not confirmed | Partial | Partial | Not confirmed |
| Custom training | Partial | Yes | Yes | Yes |
| Third-party models | Yes | No | Yes | Yes |
| Public API | Yes | Yes | Yes | Yes |
| MCP server | Yes | Yes | Not confirmed | Yes |
| Mobile app | Not confirmed | Not confirmed | Yes | Not confirmed |
| Desktop / local | Yes | Yes | No | Partial |
| Open source | Yes | Partial | No | Partial |
| Free tier | Yes | Partial | Yes | Not confirmed |
| Commercial use | Partial | Partial | Yes | Not confirmed |
Each column comes from that tool's own researched page. "Not confirmed" means the vendor doesn't say.
Plans
Pricing compared
ComfyUI
| Local | Freenone |
|---|---|
| Standard | $20/mo or $16/mo yearlymonthly or yearly |
| Creator | $35/mo or $28/mo yearlymonthly or yearly |
| Pro | $100/mo or $80/mo yearlymonthly or yearly |
| Team | $700/mo or $630/mo yearlymonthly or yearly |
| Enterprise | Customcustom |
Flux
| Open weights, non-commercial | Freeone-time download |
|---|---|
| API pay-as-you-go | From $0.014 per imagepay-per-image |
| Builder (open-weights licence) | Contact saleslicence |
| Platform (open-weights licence) | Contact saleslicence |
| Professional (open-weights licence) | Contact saleslicence |
| Enterprise | Contact salescustom |
Leonardo.ai
| Free | $0monthly |
|---|---|
| API | Pay as you gousage |
Replicate
| Public models, hardware time | $0.000025/s (CPU) to $0.001525/s (H100)per second of runtime |
|---|---|
| Public models, per output | varies by model, e.g. flux-1.1-pro $0.04 per image; wan-2.1 i2v 480p $0.09/s; 720p $0.25/sper output image, token or second of video |
| Private / dedicated deployments | not listed on the pricing pagesetup + idle + active time (fast-booting fine-tunes: active time only) |
| Enterprise / committed spend | customcontract |
The verdict
Which one should you pick?
ComfyUI
Pick it for
- Filmmakers who need a repeatable, documented process for a series of shots
- Motion and VFX teams combining several models in one pass
- Studios that want local GPU generation with a free app and no per-render fee
Stands out
- Open source under GPL-3.0 with a free local app; Comfy Cloud is optional and billed in credits
- Every step of a generation is a visible node, so a workflow can be saved, versioned and rerun for the same shot
Watch out
- Node graphs take time to learn; App Mode hides the detail until you need it
- Local speed depends entirely on your GPU and model choice
Flux
Pick it for
- Key art and concept frames where legible text in the image matters
- Environment plates and set-design variations at 2K or 4K, priced per megapixel
- Studios that want open weights and custom LoRAs running locally in ComfyUI
Stands out
- Open weights: FLUX.2 [dev] and the klein models can be downloaded, self-hosted and fine-tuned, with LoRA rights on the licensed tiers. Midjourney is closed.
- Pay per image with no subscription: FLUX.2 [klein] 4B from $0.014 per image, FLUX.2 [pro] from $0.03. Midjourney and Adobe Firefly sell monthly plans.
Watch out
- Video is new. FLUX 3 Video availability and FLUX 3 Image early access have been described differently across sources, and video pricing is not published
- Open-weights models are non-commercial by default, and commercial use needs a licence quoted by sales
Leonardo.ai
Pick it for
- Concept art and key-art stills that later become motion tests
- Animatic and previz stills turned into 5-second motion clips
- Custom-trained visual styles for a short film or music video look
Stands out
- Canvas-first editing (AI Canvas for inpainting and outpainting, plus a realtime mode) in the same tool as image and video generation
- Several model families under one account, including Leonardo's own Lucid and Motion 2.0 alongside third-party video models such as Kling 3.0 and Veo 3.1
Watch out
- Video is short (about 5 seconds on Motion 2.0) and not built for sequences or dialogue scenes
- Hosted third-party models are removed on short notice, so a workflow that depends on one can break mid-project
Replicate
Pick it for
- Batch-generating stills or frames overnight, such as concept art or look-dev variations
- Adding image, video or speech generation to an internal tool or a web app
- Transcribing rushes or interviews in bulk and posting results to a webhook
Stands out
- Thousands of open and hosted models behind one REST API and SDKs (Python, Node), with no GPU setup or CUDA drivers
- Billing is per second of hardware time from $0.000025/s (CPU) to $0.001525/s (H100), or per output image or per second of video for models priced that way
Watch out
- Developer tool: no timeline, canvas or prompt UI for editors
- Per-second video models add up fast on long clips and many takes
Each column comes from that tool's own researched page, checked against vendor pricing and changelog pages (oldest check: ). Sources are listed on each tool's page.
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