HARPA AI vs Stability AI

What is included in DEMO plan?

You can use HARPA for free on a DEMO plan within free limits: Access ChatGPT, Claude, Gemini on web session connections, limited to 10 message a day. Up to 100 total AI command runs, page-aware, web-aware, and parameterized AI messages. Access to predefined and custom commands, and web monitors.

What are Power Messages?

Power Messages are AI commands, page-aware, web-aware or parameterized AI messages sent in chat. Power messages have a daily rate limit on Free plan. Upgrade to S-tier plan for unlimited power messages.

What are Spaces?

Space is a personal, team or organization workspace, and is a place for storing your commands. On S plan you can connect multiple members to your space to share commands across your team and organization.

What are Megatokens?

Megatokens are consumed when sending chat requests on the fast and reliable HARPA Cloud GPT connection. 1 Megatoken is 1 million input tokens on efficient models and is roughly 750,000 words of input text in English. Output tokens cost x3 input tokens.

X vs S-tier. Which to pick?

S1 and S2: Both plans include the same Cloud AI connections. S2 offers 3x more megatokens at a marginally higher price. X-tier: One-time payment with lifetime access. Bring your own API keys to control costs, or use unlimited Web Session connections for life.

What is Stability AI / Stable Diffusion?

Stability AI provides creative production tools powered by your brand, offering generative media models for image, video, audio, and 3D. The Stable Diffusion family of models powers image generation alongside Stable Video, Stable Audio 2.5, and Stable Fast 3D, all available via the Stability Platform API or self-hosted deployment.

Which image generation models does Stability AI offer?

Stability AI offers several image models on its Developer Platform: Stable Image Ultra (flagship, based on Stable Diffusion 3.5 Large, 8 credits per result), Stable Diffusion 3.5 Large (8B parameter base model, 6.5 credits), Stable Diffusion 3.5 Large Turbo (4 credits), Stable Diffusion 3.5 Medium (3.5 credits), Stable Diffusion 3.5 Flash (distilled, 2.5 credits), Stable Image Core (3 credits), and the legacy SDXL 1.0 (from 0.9 credits).

Beyond image generation, what other media can Stability AI create?

Stability AI covers multiple modalities: video (Stable Video model), audio (Stable Audio 2.5 generates up to three minutes of high-quality audio from text prompts or audio samples, with Text-to-Audio, Audio-to-Audio, and Audio Inpaint endpoints), and 3D (Stable Fast 3D generates 3D assets from a single 2D image, and Stable Point Aware 3D / SPAR3D supports real-time edits and complete 3D structure from one image).

How does the Stability Platform API work?

The Stability Platform exposes a production-ready REST v2beta API service (the primary API as of March 2024) for media generation and editing with no infrastructure to manage. Authentication uses a Stability API key included in the Authorization header. Asynchronous services return results via a 'Fetch async generation result' endpoint. Official SDKs include a Python gRPC SDK and a TypeScript gRPC Client, plus a Google Colab Playground notebook.

How is Stability AI priced?

Pricing is per-usage based on API credits, where 1 credit = $0.01. New users get 25 free credits to start, with pay-as-you-go credit purchases thereafter. The Developer Platform has a rate limit of 150 requests every 10 seconds. Self-Hosted License and Enterprise tiers are also offered with custom pricing (contact sales). All amounts are in USD.