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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

Runware logo
Runware
✓ verifiedFreemium

Pay-as-you-go API aggregating thousands of image, video, audio and LLM models with custom inference hardware for lower per-request cost.

249K visits/mo
Cartesia AI logo
Cartesia AI
✓ verifiedFreemium

Voice-AI platform offering real-time text-to-speech, speech-to-text and voice-agent models through one API.

384K visits/mo
BeFreed logo
BeFreed
✓ verifiedFreemium

Turns books, papers and expert sources into personalized audio lessons and AI podcasts you can chat with.

254K visits/mo
Document360 logo
Document360
✓ verifiedFree trial

AI-powered knowledge base software for building internal and external docs, help centers, SOPs, and API references with analytics.

94K visits/mo1.6K saves
Brainfish logo
Brainfish
✓ verifiedPaid

AI self-service support agents for B2B that resolve customer questions across chat, email, in-product and Slack.

9.1K visits/mo5.3K saves
Pricing
vCPU compute: $0.016/hr
RTX PRO 6000: $1.99/hr (as low as $0.99)
H100: $2.76/hr
H200: $3.18/hr
B200: $4.99/hr

Free trial available

Free: $0 (20K credits/mo)
Pro: $5/mo (100K credits)
Startup: $49/mo (1.25M credits)
Scale: $299/mo (8M credits)
Premium: $7.49/mo (billed yearly at $89.99)

Free trial available

No public pricing

Free trial available

No public pricing

Core features
  • Single API for image, video, audio, 3D and LLM models
  • Standardized model addressing across hosted, partner and custom uploads
  • Support for LoRAs, ControlNets, VAEs and embeddings on open-source models
  • WebSocket and REST access with async webhook delivery
  • Pay-per-request billing with no infrastructure to manage
  • Raw serverless GPU/CPU compute for custom workloads
  • Sonic real-time text-to-speech
  • Ink speech-to-text
  • Line voice agents
  • Low-latency real-time output
  • Voice cloning
  • Single multilingual API
  • Personalized audio lessons from many sources
  • Custom AI podcast generation
  • Choice of voice, language and depth
  • Chat with the audio content
  • Flashcards and progress tracking
  • Book summaries and curated lists
  • Knowledge base authoring portal
  • Customizable customer-facing docs site
  • Eddy AI assistant and AI chatbot
  • Analytics and custom workflows
  • Import from PDF/Word, export to PDF
  • SSO, SCIM, and API support
  • AI support agents across chat, email, in-product, Slack
  • Grounded answers with citations on every reply
  • Personalization by plan, role, region or account
  • Ingests docs, tickets, calls and knowledge bases
  • Evaluation analytics and gap detection
  • Enterprise security (SOC 2, ISO 27001, data residency)
Use cases
  • Adding AI image or video generation to an app without managing infra
  • Batching multi-modal generation tasks in one API call
  • Running custom fine-tuned models via Model Upload
  • Cutting inference costs at high generation volume
  • Building voice agents
  • Text-to-speech and transcription apps
  • Fraud-detection verification calls
  • Real-time customer support voice
  • Learning from books during a commute
  • Generating podcasts on chosen topics
  • Retaining knowledge with flashcards
  • Building external product documentation
  • Running internal knowledge bases
  • Publishing SOPs and user manuals
  • Creating API documentation
  • Automating B2B customer support
  • Deflecting repetitive support tickets
  • Powering internal team copilots
  • Surfacing upsells inside support chats
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