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Best Lettertrace alternatives in 2026 (free and paid)
Lettertrace is free end to end, but it hands you the work. You supply your own Anthropic, OpenAI and Google API keys and pay those providers directly, so cost scales with how many prompts and models you run. Self-hosting needs Node and Supabase, the site has no pricing or docs page (both return 404), and the public repo shows a small number of stars and forks. Trial runs on shared keys exist but their limit is not stated.
If you would rather query an assistant by hand than run a monitoring pipeline, the listed options are the assistants Lettertrace tracks. Google Gemini starts at Google AI Plus, $4.99 per user per month, with a free tier. Perplexity lists Education Pro (consumer, verified students/faculty) at $10 per user per month and cites its sources. Claude is Pro at $20 per user per month and ChatGPT is Plus (consumer) at $20 per user per month, each with a free tier. They answer questions; our data does not describe scheduled share-of-voice tracking in any of them.
"Better suited" below is based on documented features and pricing from our verified profiles, not on a head-to-head test. Prices are USD as published by each vendor.