Flux vs Higgsfield vs Kling AI vs LetzAI
A side-by-side look at Flux, Higgsfield, Kling AI and LetzAI for filmmakers: what each one can do, what it costs, and where they actually differ.
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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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AI video studio with camera control: Seedance 2.5, Cinema Studio 4.0, API and MCP
- Price
- Free tier; paid plans from €19/mo billed annually (prices exclude VAT)
- Learning
- Moderate
- Best for
- Directors previsualising multi-shot sequences with camera direction and fixed characters
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Text, image and video-reference AI video with native audio, lip-sync and shot storyboarding
- Price
- See the vendor's pricing page
- Learning
- Moderate
- Best for
- Character-driven short films that need the same actor across many shots
-
Canvas for AI filmmakers: storyboard, generate multi-model shots, cut and share previews.
- Price
- From EUR 8.25/mo billed yearly (EUR 99/yr, Beginner); Canvas needs a paid plan
- Learning
- Easy
- Best for
- Storyboards and animatics for pitch decks, shot by shot
Feature by feature
Flux vs Higgsfield vs Kling AI vs LetzAI: capabilities
| Flux | Higgsfield | Kling AI | LetzAI | |
|---|---|---|---|---|
| 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. | Free tier; paid plans from €19/mo billed annually (prices exclude VAT) | See the vendor's pricing page | From EUR 8.25/mo billed yearly (EUR 99/yr, Beginner); Canvas needs a paid plan |
| Infinite canvas | No | Partial | Partial | Yes |
| Node / flow builder | No | Not confirmed | Not confirmed | Partial |
| AI agent | No | Yes | Not confirmed | Yes |
| Chat assistant | No | Yes | Not confirmed | Yes |
| Team collaboration | Not confirmed | Yes | Not confirmed | Yes |
| Text to image | Yes | Yes | Yes | Yes |
| Image editing | Yes | Yes | Not confirmed | Partial |
| Text to video | Yes | Yes | Yes | Yes |
| Image to video | Yes | Yes | Yes | Yes |
| Video to video | Partial | Yes | Yes | Partial |
| Native audio in video | Yes | Yes | Yes | Partial |
| Lip-sync | Yes | Not confirmed | Yes | Not confirmed |
| Voice / TTS | Partial | Yes | Partial | Not confirmed |
| Music & SFX | Partial | Yes | Not confirmed | Not confirmed |
| Upscaling | Yes | Yes | Not confirmed | Yes |
| Character consistency | Partial | Yes | Yes | Not confirmed |
| Camera control | Partial | Yes | Yes | Partial |
| Custom training | Yes | Not confirmed | Not confirmed | Partial |
| Third-party models | No | Yes | No | Yes |
| Public API | Yes | Yes | Yes | Yes |
| MCP server | Yes | Yes | Not confirmed | Not confirmed |
| Mobile app | Not confirmed | Partial | Not confirmed | Not confirmed |
| Desktop / local | Yes | Not confirmed | No | No |
| Open source | Partial | No | No | No |
| Free tier | Partial | Yes | Yes | Partial |
| Commercial use | Partial | Not confirmed | Yes | Not confirmed |
Each column comes from that tool's own researched page. "Not confirmed" means the vendor doesn't say.
Plans
Pricing compared
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 |
Higgsfield
| Free | €0limited use |
|---|---|
| Starter | €19per month, billed annually |
| Plus | €47per month, billed annually (€59 monthly) |
| Ultra | €99per month, billed annually (€129 monthly) |
| Teams | From €65per seat per month |
Kling AI
| Free | $0monthly |
|---|
LetzAI
| Beginner | EUR 8.25/moyearly (EUR 99/yr) |
|---|---|
| Fun | EUR 20.75/moyearly (EUR 249/yr) |
| Pro | EUR 62.42/moyearly (EUR 749/yr) |
| Ultra | EUR 165.83/moyearly (EUR 1,990/yr) |
| Enterprise Basic | EUR 416.67/moyearly (EUR 5,000/yr) |
| Enterprise Plus | EUR 1,250/moyearly (EUR 15,000/yr) |
The verdict
Which one should you pick?
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
Higgsfield
Pick it for
- Directors previsualising multi-shot sequences with camera direction and fixed characters
- Agencies producing ad variants from a product link or brand assets
- Editors who want generation inside DaVinci Resolve, Photoshop or Blender via plugins or MCP
Stands out
- Many models, one credit balance: Seedance 2.5, Kling 3.0 Turbo, Wan 3.0, Grok Video 1.5, MiniMax H3 Max, Gemini Omni and image models such as FLUX 3 and GPT Image 2.5 run from one account, so you can shop models per shot.
- Cinema Studio 4.0 is a directed-scene workspace (30-second takes, 50 references, camera and colour controls) rather than a single prompt box.
Watch out
- Premium video models are credit-gated on every plan, so high-volume work gets expensive quickly
- The best access terms are time-limited promotions (unlimited windows, the 33-day Seedance 2.5 promotion, cashback offers)
Kling AI
Pick it for
- Character-driven short films that need the same actor across many shots
- Previs and storyboard visualisation from shot-by-shot prompts
- Multi-language talking-head and dubbed social content
Stands out
- Video 3.0 Omni reference system: carries a character's look, expressions and voice traits from reference clips into new shots
- Storyboarding sets duration, shot size, perspective and camera movement per shot, which few generators expose this directly
Watch out
- Free output is watermarked and not for commercial use
- Lip-sync and voice are less of a focus than dedicated voice tools (ElevenLabs, HeyGen)
LetzAI
Pick it for
- Storyboards and animatics for pitch decks, shot by shot
- Testing one shot across several video models on the same board before committing credits
- Agency client review with preview links and comments
Stands out
- One workspace for storyboard, generation, shot-by-shot video animation and client previews, with no export step between tools
- Multi-model access in one subscription: 40 active base models on the models page, including Seedance 2.5, Kling V3, Veo 3.1, Flux and Nano Banana
Watch out
- Canvas and the assistant need a paid plan, and assistant chat draws from the credit balance
- Credits are non-refundable and generation prices can change without notice
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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