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Stable Diffusion vs Together AI

Stable Diffusion logo

Stable Diffusion

Software

Open-source AI image generation

From
Free
Rated
-
Full reviewWebsite
Together AI logo

Together AI

Software

Open-source AI at scale

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Stable Diffusion generated images have lower resolution and quality at non-standard dimensions; Together AI fine tuning carries a minimum charge of $4.00 per job regardless of dataset size
  • They diverge on capability: Stable Diffusion covers Text-to-image, Together AI covers Open-source models.

Where they differ

Only the attributes on which Stable Diffusion and Together AI actually diverge.

Attributes where Stable Diffusion and Together AI differ
AttributeStable DiffusionTogether AI
Pricing modelUnknownusage-based
PlatformsWeb, Local (GPU-based), Cloud APIsApi, Cloud
Founded20192022

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Stable Diffusion

  • Text-to-image
  • Image-to-image
  • Inpainting
  • LoRA support
  • ComfyUI
  • Automatic1111
  • Multiple UIs
  • Local support

Only in Together AI

  • Open-source models
  • Fine-tuning
  • Fast inference
  • Embeddings
  • REST API
  • Python SDK
  • OpenAI compatible
  • Cloud support

Both cover

  • Api support

What people use each for

The jobs each tool is most often brought in to do.

Stable Diffusion

  • ai tools managementnot Together AI
  • Workflow automationnot Together AI
  • Reportingnot Together AI

Together AI

  • Serverless inference against open source chat, vision, embedding, image and video modelsnot Stable Diffusion
  • Renting dedicated single tenant H100, H200 or B200 GPU clusters by the hournot Stable Diffusion
  • Fine tuning open weight models on a per token basisnot Stable Diffusion

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Stable Diffusion

  • Generated images have lower resolution and quality at non-standard dimensions
  • Struggles with complex multi-object prompts and text generation
  • Poor rendering of human hands, limbs, and faces due to training data limitations
  • Trained primarily on English-language descriptions, reinforcing Western cultural bias
  • Requires significant GPU computational resources for local deployment

Together AI

  • Fine tuning carries a minimum charge of $4.00 per job regardless of dataset size
  • Reserved GPU commitments beyond 180 days are priced by contacting sales with no published rate
  • Volume and enterprise discounts are quote only with no published threshold
  • Reserved dedicated inference pricing is contact sales while only on demand rates of $5.49 to $8.99 per GPU hour are published

Pricing, plan by plan

Stable Diffusion

Free

No published plan breakdown. See the Stable Diffusion review.

Together AI

Free
  • FreeFree
    • $5 credits
    • API access
  • Pay-per-use$0.2/per-million-tokens
    • All models
    • Fine-tuning

Which should you pick?

Choose Stable Diffusion if

  • You need text-to-image.
  • You want to start without paying.
  • You work on Web, Local (GPU-based), Cloud APIs.
  • You also want image-to-image.
Stable Diffusion review

Choose Together AI if

  • You need open-source models.
  • You want to start without paying.
  • You work on Api, Cloud.
  • You also want fine-tuning.
Together AI review

Questions people ask

Is Stable Diffusion or Together AI better?
Neither clearly leads. Stable Diffusion starts at Free and Together AI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stable Diffusion or Together AI?
Stable Diffusion starts at Free and Together AI at Free.
Does Stable Diffusion or Together AI run on more platforms?
Stable Diffusion runs on Web, Local (GPU-based), Cloud APIs. Together AI runs on Api, Cloud.
Can I use Stable Diffusion for free?
Both have a free tier, so you can try either at no cost before committing.
What is Stable Diffusion best used for?
Stable Diffusion is most often used for ai tools management, workflow automation, reporting. Of those, ai tools management and workflow automation are not what Together AI is typically brought in for.
What can Stable Diffusion do that Together AI cannot?
Stable Diffusion covers Text-to-image, Image-to-image, Inpainting, LoRA support. Together AI covers Open-source models, Fine-tuning, Fast inference, Embeddings. Both handle Api support.

Answered from the vendors’ own pages

Stable Diffusion: Is Stable Diffusion truly free and open-source?

Yes. Stable Diffusion is released under the CreativeML Open RAIL-M license, allowing free use for both commercial and non-commercial purposes, and the code is open-source on GitHub.

Source
Stable Diffusion: Can I use Stable Diffusion commercially for free?

Yes, if your organization has less than $1M annual revenue. Organizations exceeding $1M annually must obtain an Enterprise License from Stability AI.

Source
Stable Diffusion: What are Stable Diffusion's image resolution limitations?

The base model was trained on 512x512 pixel images, and image quality degrades noticeably when deviating from this resolution. Newer models like SDXL support higher resolutions.

Source
Stable Diffusion: Can I run Stable Diffusion locally on my computer?

Yes. Stable Diffusion is open-source and can run locally on compatible hardware, though it requires a GPU for reasonable performance.

Source
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