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Pick two to five tools. Every cell comes from a verified record; anything unverified says so. There is no overall winner — the right choice depends on your task, budget and technical needs.

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Criterion	Perplexity	Stable Diffusion (Stability AI)	Hugging Face	ElevenLabs	DeepL
Provider	Perplexity AI	Stability AI	Hugging Face	ElevenLabs	DeepL SE
What it is for	An AI answer engine that searches the web and cites sources, with access to models from several providers on paid plans.	Stability AI's open-weight image models, also available through a credit-based API.	Hub for sharing open models, datasets and demo apps, with paid compute for inference and hosting.	Text-to-speech, voice cloning, transcription, music and voice agents from one platform and API.	An AI translator for text, documents and speech, with a writing assistant and a developer API.
Category	AI Research Tools, AI Chatbots & Assistants, AI Agents & Frameworks, LLM APIs & Model Platforms	AI Image Generators, Local & Self-Hosted AI, LLM APIs & Model Platforms, AI Voice & Audio Tools	Machine Learning & Deep Learning, Inference & Model Hosting, AI Deployment & Monitoring	AI Voice & Audio Tools, LLM APIs & Model Platforms, AI Customer Support & Sales	AI Writing & Content Creation, LLM APIs & Model Platforms, Enterprise Automation
Latest confirmed model	—	Stable Diffusion 3.5 (image); Stable Audio 3.0 (audio, May 2026) May 20, 2026	—	Eleven v4 Sep 28, 2026	—
Main capabilities	Cited answers Pro Search (Depends on plan) Research (Deep Research) (Depends on plan) Model Council (Depends on plan) Brain (Preview)	Stable Diffusion 3.5 suite Stable Image Ultra / Core API Editing, upscaling and control APIs Stable Audio 3.0 Stable Fast 3D	Model and dataset hub Spaces Inference Providers Inference Endpoints Team and Enterprise controls (Depends on plan)	Eleven v4 TTS Voice cloning (Depends on plan) Scribe speech-to-text Eleven Music ElevenAgents	Text and document translation (Depends on plan) Glossaries (Depends on plan) DeepL Write Pro (Depends on plan) DeepL Voice (Depends on plan) Translation memory (Depends on plan) API
Inputs / outputs	Not documented	Not documented	Not documented	text → audio	Not documented
Context window	Not documented	Not documented	Not documented	Not documented	Not documented
Free plan	Yes 3 Pro Searches/day; 1 Research query/month; limited uploads	Yes Organisations or individuals under $1M annual revenue	Yes No included inference credits	Yes 10,000 credits/month (about 10 min TTS); 3 custom voice slots; 3 Studio projects	Yes 50,000 characters per user/month; 1 file translation/month (5 MB max); 1 glossary (5 entries per language pair)
Cheapest paid plan	Education Pro: $10/mo With SheerID student verification	No monthly list price	PRO: $9/mo	Starter: $6/mo $5/mo billed annually Promo first-month prices may apply	No monthly list price
All plans	Free — Free Pro — $20/mo $17/mo billed annually $200/year Education Pro — $10/mo With SheerID student verification Max — $200/mo $167/mo billed annually $2,000/year; annual billing on web only Enterprise Pro — $40/mo $33.33/mo billed annually Per seat; $400/seat/year; $30 or $300 for eligible education/nonprofit Enterprise Max — Price not listed on pages checked	Community Licence — Free Enterprise Licence — Contact provider Developer API (pay-as-you-go) — $0.01 Per credit	Free (HF Hub) — Free PRO — $9/mo Team — $20/mo Per user per month Enterprise — $50/mo Per user per month; annual billing	Free — Free Starter — $6/mo $5/mo billed annually Promo first-month prices may apply Creator — $22/mo $18.33/mo billed annually First month discounted Pro — $99/mo $82.50/mo billed annually Scale — $299/mo $249.17/mo billed annually Business — $990/mo $825/mo billed annually Enterprise — Contact provider	Free — Free Individual — Billed annually; monthly price not shown Team — Per user, billed annually Business — Per user, billed annually Enterprise — Contact provider
API access	Yes · docs (opens in a new tab)	Yes · docs (opens in a new tab)	Yes · docs (opens in a new tab)	Yes · docs (opens in a new tab)	Yes · docs (opens in a new tab)
Free API quota	None documented	Small starter credit grant for new accounts (25 credits per search snippet; unconfirmed on live page)	None documented	Free plan credits can be used via API; no separate free API quota stated	Developer plan: 1,000,000 characters total, one-time (does not reset)
API pricing	sonar input/output: $1 per 1M tokens (input and output each) sonar-pro input: $3 per 1M input tokens sonar-pro output: $15 per 1M output tokens sonar request fee (low context): $5 per 1,000 requests	API credit: $0.01 per credit	Inference Endpoint AWS NVIDIA T4: $0.50 per hour Inference Endpoint AWS NVIDIA H100: $4.50 per hour Spaces Nvidia A10G small: $1 per hour	Eleven v4 TTS: $0.08 per 1K characters Eleven v4 Turbo / Flash / Turbo TTS: $0.04 per 1K characters Eleven v3 TTS: $0.08 per 1K characters Scribe v2 speech-to-text: $0.22 per hour	Fixed monthly or yearly price with included characters, plus usage-based overage
Open-weight / proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary
Commercial use	See plan terms	Outputs are yours subject to law and Stability's Acceptable Use Policy.	See plan terms	Commercial licence on paid plans (Starter and above).	See plan terms
Privacy & data	Enterprise plans state data is never used for training; Enterprise Max adds configurable data retention.	Self-hosting keeps prompts and images on your own hardware.	Private repos available; storage regions on Team and Enterprise.	Voice cloning requires rights to the voice used; review ElevenLabs' terms on data use and retention.	Growth: texts deleted immediately after translation
Platforms & integrations	Web, iOS, Android, Comet browser	Windows, Linux, macOS (local), API	Web, Python and JavaScript libraries, REST API	Web, iOS, Android, API	Web, Windows, macOS, iOS, Android, Browser extension, Microsoft Word, Google Workspace, API
Learning curve	Beginner-friendly	Technical	Some experience helps	Beginner-friendly	Beginner-friendly
Advantages	Strong focus on citations Multi-provider model access Published enterprise limits	Open weights allow local and private use Huge ecosystem of community tools Free commercial use under $1M revenue	Huge open ecosystem Free tier for hosting and sharing Flexible compute options	Wide product range from one account Fast new model releases Low entry price ($6/mo Starter)	Translation quality and formatting retention Clear data-security commitments on paid plans Mature developer SDKs
Limitations	Free plan has tight Pro Search and Research limits Pro limits described as 'average use' rather than numbers API billed separately from subscriptions	No major new image model found in 2026; recent focus is audio Licence is revocable and requires registration for commercial use Hosted API prices were raised in Aug 2025 and current per-model figures were not verified	Free users get no included Inference Providers credits Costs spread across storage, Spaces and endpoints can be hard to track Model licences vary per repository and must be checked	Free plan lacks a commercial licence Credits can run out quickly on long-form content Voice cloning raises consent obligations	Free Translator limited to 50,000 characters and 1 file per month API Developer allowance does not reset Growth API pricing was not visible on the official page fetched
Last verified	Oct 19, 2026	Oct 19, 2026	Oct 19, 2026	Oct 19, 2026	Oct 19, 2026

How to choose

Start from the rows that matter for your job: a free plan and learning curve for casual use; API access, rates and data terms for building products; context window and modalities for long documents or images. Provider claims are labelled as such; we do not rank.

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