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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.
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Weights & Biases
✓ verifiedFreemium
Weights & Biases is a widely used MLOps platform for experiment tracking, model management and evaluating AI applications.
2.5M visits/mo
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Maestra
✓ verifiedFreemium
Web platform for AI transcription, subtitling, translation and dubbing across 125+ languages, aimed at video creators and teams.
1.5M visits/mo
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liteLLM
✓ verifiedFreemium
Open-source AI gateway giving dev teams unified access, fallbacks and spend tracking across 100+ LLMs.
703K visits/mo
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LangWatch
✓ verifiedFreemium
Platform to test, evaluate and observe LLM and voice AI agents, with prompt management and red-teaming for production.
23K visits/mo6.4K saves
Pricing
No public pricing
Pay As You Go: $12 (60 credits)
Lite: $23/mo (180 min)
Basic: $39/mo (360 min)
Premium: $79/mo (900 min)
Free trial available
Free: Free
Image Plan: $4 /Month
Image Pro Plan: $7 /Month
Open Source: $0 (self-hosted, 100+ providers)
Free trial available
Developer: €0 (50k events/mo)
Growth: €29/core-seat/mo (+ €5 per 100k events)
Core features
- ✦Experiment tracking and visualization for ML training runs
- ✦Model and artifact versioning and management
- ✦Hyperparameter optimization tooling
- ✦Collaborative dashboards and reports for ML teams
- ✦LLM application tracing and evaluation tooling
- ✦Automatic transcription with speakers and timestamps
- ✦Subtitle generation, translation and editing
- ✦AI dubbing with voice cloning and lip sync
- ✦Real-time transcription, translation and captioning
- ✦Text-to-speech voiceovers in 125+ languages
- ✦AI Image Generation (from text, layout, fusion, replacement)
- ✦AI Video Creation (Image to Video, Text to Video)
- ✦AI Audio Tools (Speech to Text, Text to Speech, Vocal Remover)
- ✦AI-powered Photo Editing (Enhancement, Background Removal, Portrait tools)
- ✦AI-powered Video Enhancement (Upscaling, Denoising)
- ✦AI-powered Audio Enhancement (Denoise, Speech Enhancement)
- ✦Unified access to 100+ LLMs in OpenAI format
- ✦Cost/spend tracking per key, user and team
- ✦Budgets and rate limiting
- ✦Automatic provider fallbacks and retries
- ✦Virtual keys and team management
- ✦Logging and observability integrations
- ✦Scenario-based agent testing
- ✦LLM evaluation and quality scoring
- ✦Observability for cost and latency
- ✦Prompt management with GitHub sync
- ✦Voice AI simulation
- ✦LLM red-teaming and governance
Use cases
- →ML engineers tracking and comparing training experiments
- →Research teams versioning datasets and model checkpoints
- →Teams building and evaluating LLM-powered applications
- →Organizations collaborating on machine learning projects
- →Subtitle and translate videos for global audiences
- →Transcribe meetings, interviews and media files
- →Dub audio and video into other languages
- →Caption live events and streams
- →Creating business headshots for resumes or social media
- →Generating templates with AI using text prompts
- →Perfecting podcasts with smart audio editing
- →Transforming photos into videos (e.g., kissing videos, product videos)
- →Generating custom AI artwork
- →Removing watermarks or changing backgrounds for e-commerce
- →Creating social media profile pictures and posts
- →Transcribing audio for subtitles or podcasts
- →Giving developers governed access to many LLMs
- →Attributing and controlling LLM spend
- →Keeping apps running during provider outages
- →Catch agent issues before production
- →Evaluate and monitor LLM quality
- →Test voice AI agents at scale
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