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GreenPT vs Stability AI: Token Pricing, Speed & Intelligence

Full comparison of GreenPT and Stability AI — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Rates sourced from public APIs — verify before use.

GreenPT

European LLM inference with EUR pricing

GreenPT (greenpt.com) is an LLM inference provider offering access to models including Kimi, GLM, DeepSeek, and MiniMax families via an OpenAI-compatible API, with pricing denominated in EUR.

ChatLong-context inference
Open-weight host

Stability AI

Stable Diffusion 3.5 Large and Stable Image Ultra — open-weight image generation

Stability AI is the creator of Stable Diffusion, the most widely deployed open-weight image generation model family. The 2026 API offers Stable Diffusion 3.5 Large (highest quality), SD 3.5 Medium (balanced), and Stable Image Ultra for photorealistic output. All SD 3.5 models are open-weight and available for self-hosting. Stability AI also offers Stable Video Diffusion for short video generation.

Image generationImage editingInpaintingVideo generationSelf-hosted AI artFine-tuning
Proprietary modelsHosts open weights

Key metric comparison

Cheapest input ($/1M)

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Not comparable

Cheapest output ($/1M)

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Not comparable

Peak throughput

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Not comparable

Best latency (TTFT)

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Not comparable

Intelligence score

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Not comparable

Context window

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Not comparable

Live token pricing

Strengths and weaknesses

Stability AI

Open-weight SD 3.5 models — self-host on any GPU cloud
Largest community ecosystem of fine-tuned variants and LoRAs
Stable Image Ultra for photorealistic output
Stable Video Diffusion for short video generation
Competitive API pricing vs DALL-E 3
Inpainting and outpainting support
Image quality trails FLUX 1.1 Pro and Midjourney on photorealism benchmarks
Company has faced financial challenges and leadership changes
SD 3.5 adoption slower than FLUX in the community

Key differentiators

Stability AI

Stable Diffusion 3.5 models are open-weight and self-hostable — enabling the largest fine-tuning and LoRA ecosystem of any image generation model family, with full control over the generation pipeline.

Frequently asked questions

GreenPT FAQs

What is GreenPT?

GreenPT is an LLM inference provider offering access to models including Kimi, GLM, DeepSeek, and MiniMax families. See greenpt.com for details.

What currency does GreenPT use for pricing?

GreenPT prices are denominated in EUR. See docs.greenpt.ai/pricing for current rates.

Is the GreenPT API OpenAI-compatible?

GreenPT provides an OpenAI-compatible API. See docs.greenpt.ai for endpoint details.

Stability AI FAQs

What is Stable Diffusion 3.5?

Stable Diffusion 3.5 is Stability AI's latest generation of open-weight text-to-image models. SD 3.5 Large offers the highest quality; SD 3.5 Medium is a balanced option for production use. Both are available for self-hosting.

How does Stability AI compare to FLUX?

FLUX 1.1 Pro generally outperforms SD 3.5 on photorealism and prompt adherence benchmarks. However, SD 3.5 has a much larger community ecosystem of fine-tuned variants and LoRAs, making it more flexible for specialised use cases.

Can I self-host Stable Diffusion 3.5?

Yes. SD 3.5 Large and Medium weights are publicly available under the Stability AI Community License. You can run them on any GPU with sufficient VRAM — SD 3.5 Medium requires ~8GB VRAM; SD 3.5 Large requires ~24GB.

Provider resources

GreenPT — European LLM inference with EUR pricing

GreenPT (greenpt.com) is an LLM inference provider offering access to models including Kimi, GLM, DeepSeek, and MiniMax families via an OpenAI-compatible API, with pricing denominated in EUR.

Stability AI — Stable Diffusion 3.5 Large and Stable Image Ultra — open-weight image generation

Stability AI is the creator of Stable Diffusion, the most widely deployed open-weight image generation model family. The 2026 API offers Stable Diffusion 3.5 Large (highest quality), SD 3.5 Medium (balanced), and Stable Image Ultra for photorealistic output. All SD 3.5 models are open-weight and available for self-hosting. Stability AI also offers Stable Video Diffusion for short video generation.

Stable Diffusion 3.5 models are open-weight and self-hostable — enabling the largest fine-tuning and LoRA ecosystem of any image generation model family, with full control over the generation pipeline.

Key strengths compared

GreenPT

    Stability AI

    • Open-weight SD 3.5 models — self-host on any GPU cloud
    • Largest community ecosystem of fine-tuned variants and LoRAs
    • Stable Image Ultra for photorealistic output
    • Image quality trails FLUX 1.1 Pro and Midjourney on photorealism benchmarks
    • Company has faced financial challenges and leadership changes

    Key weaknesses compared

    GreenPT

      Stability AI

      • Image quality trails FLUX 1.1 Pro and Midjourney on photorealism benchmarks
      • Company has faced financial challenges and leadership changes
      • SD 3.5 adoption slower than FLUX in the community

      Provider category context

      GreenPT is a inference api. Stability AI is a frontier lab, founded in 2020. GreenPT as an inference API provider hosts open-weight models — typically offering lower prices for equivalent capability tiers. Stability AI as a frontier lab trains and serves proprietary models with capabilities not available elsewhere.

      How to choose between them

      Choose GreenPT if you need . Choose Stability AI if you need open-weight sd 3.5 models — self-host on any gpu cloud. For high-volume production workloads, run a cost comparison using the token pricing table above with your actual prompt/completion token ratio — the cheapest provider depends heavily on your input-to-output token ratio.