SiteList review score
Clear workspace for comparing and synthesizing AI model answers. Pricing gives buyers little guidance, so plan choice remains harder than it should be.
Reviewed on Sep 4, 2026
Lettib
lettib.com
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Claim itWhat it does
LettiB is a web AI workspace that compares ChatGPT, Claude, Gemini, and other model answers side by side, then synthesizes them into one merged response.
Two ratings
Verified user rating
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Screenshots
Captured during our latest review on Sep 4, 2026
Pricing details
Free plan: $0 forever with 300 credits/month. Pro: $15/month with 15,000 credits/month. Power: $35/month with 35,000 credits/month. Lifetime BYOK: $79 one-time. Provider usage is billed separately when using own keys. Billed monthly. free trial (7 days) · The Pro and Power plans state a 7-day free trial.
| Plan | Price | Details |
|---|---|---|
| Free | $0 one time per plan | Free plan with managed credits and optional BYOK. 300 credits/month · Compare up to 2 models · 5 projects · Synthesis: 10/month · 7-day history View source |
| Pro Monthly | $15 monthly per month | Monthly plan with managed credits, comparison, synthesis, and project memory. 15,000 credits/month · Compare up to 4 models · Unlimited projects · Unlimited Synthesis · Unlimited history & search View source |
| Power Monthly | $35 monthly per month | Monthly plan with higher credits, larger comparisons, custom AI teams, and priority support. 35,000 credits/month · Compare up to 6 models · Custom AI Teams · Shareable synthesis links · Priority synthesis queue · Priority support View source |
| Lifetime BYOK | $79 one time per one-time | One-time plan with BYOK and unlimited providers. No renewals · BYOK — unlimited providers · Best for long-term solo power users View source |
Key features
Side-by-side model comparison
Comparison
Send one prompt to multiple AI models and view every response side by side.
Answer synthesis
Synthesis
Merge attributed insights from multiple model answers into one final response.
Projects and folders
Organization
Group chats, comparisons, and syntheses by project.
Project Memory
Organization
Projects accumulate goals, decisions, preferences, and facts.
Search
Organization
Search work organized in projects.
Bring your own API keys
Access
Connect personal provider API keys for control and usage with supported providers.
Custom AI Teams
Comparison
Create custom AI teams on the Power plan.
Shareable synthesis links
Synthesis
Create shareable synthesis links on the Power plan.
Who it’s for
Compare AI model answers
Ask one question across multiple AI models and compare the responses.
Synthesize a final answer
Combine the strongest ideas from multiple model responses into one answer.
Organize AI work by project
Group chats, comparisons, and syntheses in project folders.
Integrations
OpenAI
AI model providers
Provider supported for bring-your-own API keys.
Anthropic
AI model providers
Provider supported for bring-your-own API keys.
Google
AI model providers
Provider supported for bring-your-own API keys.
xAI
AI model providers
Provider supported for bring-your-own API keys.
DeepSeek
AI model providers
Provider supported for bring-your-own API keys.
Buyer questions
Questions buyers actually ask
How is LettiB different from Aymo?
Aymo aggregates models. LettiB aggregates models and synthesizes them. Aymo shows multiple answers; LettiB creates one merged best answer. LettiB's Free tier also works immediately with managed credits and no API key setup.
Do I have to bring my own API keys?
No. Free, Pro, and Power tiers include monthly credits. If you want unlimited usage with your own keys, choose Lifetime BYOK.
How many AI models does LettiB support?
15+ models including GPT-5.6, Claude Sonnet 5 and Opus 5, Gemini 3.5, DeepSeek, Grok, and Groq OSS variants, with new models added regularly.
How does Synthesis work?
Ask one question and LettiB sends it to multiple AI models. You see every answer side by side, then LettiB merges the strongest points into one final answer.
Product FAQ information · View source
The expert review
Lettib scores 85/100 for its clear AI model comparison workspace and strong usability. Its most material weaknesses are limited pricing decision support and gaps in review-content integrity, with accessibility, performance, and content structure also needing attention.
85/100: strong product, important decision-support gaps
Verified user reviews
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Scores across 13 dimensions
Brand & experience
Performance
Content & editorial
Trust & decision surfaces
Search & discoverability
Docs & measurement
- Domain
- lettib.com
- Category
- Model APIs & aggregators
- Pricing
- Freemium · $15–$35/mo
- Platforms
- web
- Last checked
- Sep 4, 2026
- Public dimensions
- 13
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