LettiB
Verified Oct 14, 2026 ActiveSends one prompt to several AI models at once and merges the replies into a single synthesized answer.
Listed on EffectHub ·
Pricing
- Pricing model
- Freemium
- Paid options from
- $15/mo
- Billing
- Monthly
Free plan gives 300 credits a month (about 37 chat messages or 2 compare runs) and 10 syntheses. Pro is $15/month for 15,000 credits, up to 4 models and unlimited synthesis; Power is $35/month for 35,000 credits and up to 6 models; Lifetime BYOK is $79 one-time using your own API keys. Credit packs at $10, $25 or $49; 7-day trial on paid monthly plans.
Use tool ↗About LettiB
LettiB sends a single prompt to multiple AI models at once — OpenAI, Anthropic Claude, Google Gemini, Groq, DeepSeek, and xAI Grok are supported, along with custom OpenAI-compatible endpoints — and shows the responses side by side before merging them into one synthesized answer. It targets people who already jump between several AI chat apps to cross-check answers and would rather see that comparison automatically. The free plan includes 300 monthly credits; Pro at $15 a month raises that to 15,000 credits and unlocks unlimited synthesis, while Power at $35 a month allows querying up to six models at once. A one-time $79 Lifetime plan uses the user's own API keys instead of a subscription.
- Platforms
- Web
- API
- Not confirmed
- Last verified
- Oct 14, 2026
Verified sources
- Free $0 (300 credits/month, 10 syntheses), Pro $15/month (15,000 credits, unlimited synthesis), Power $35/month (35,000 credits, 6 models), Lifetime BYOK $79 one-time, credit packs $10/$25/$49, on the pricing page (15 October 2026)lettib.com ↗
- Compares OpenAI, Claude and Gemini models and merges them into one answer, with Grok, DeepSeek, Groq and Perplexity also available, on the home page (15 October 2026)lettib.com ↗
Is LettiB legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- May 8, 2026Registry record (RDAP), registrar NameCheap, Inc., looked up Sep 6, 2026
- TLS certificate
- Issued by Let's Encrypt, valid until Dec 9, 2026Seen in our own connection to the site on Oct 14, 2026
- Last checked
- Oct 14, 2026The site answered
- Operated by
- LettiBOur research, card verified Oct 15, 2026
Pros & cons of LettiB
LettiB's actual differentiator is the synthesis step — merging several models' answers into one, rather than just showing them side by side like most multi-model chat tools. The free tier's 300 credits disappear quickly if synthesis is used often, and it is a web-only tool with no native app.
Pros
- Synthesizes multiple model answers into one instead of just listing them side by side
- Supports six model providers plus custom OpenAI-compatible endpoints
- One-time Lifetime BYOK option avoids an ongoing subscription entirely
Cons
- Web-only, with no desktop or mobile app
- Free tier's 300 credits run out fast for anyone using synthesis regularly
- No company details beyond the LettiB brand name itself are published
Best for
- People who already cross-check the same question across ChatGPT, Claude, and Gemini manually
- Users who want one merged answer instead of comparing several outputs themselves
Not for
- Anyone wanting a native desktop or mobile app rather than a browser tool
- Casual users who will not use enough volume to justify moving past the free credits
Watch out: Synthesis is what gets capped hardest by the free plan — most of the 300 monthly credits go quickly once synthesis is used instead of single-model chat.
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LettiB head-to-head
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