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LettiB vs TypingMind

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. LettiB publishes a starting price ($15); TypingMind does not. Both have a free tier.

LettiBSends one prompt to several AI models at once and merges the replies into a single synthesized answer.TypingMindBring-your-own-key chat front end for GPT, Claude and Gemini

Side by side

FactLettiBTypingMind
CategoryMulti-model Chat AggregatorsMulti-model Chat Aggregators
Pricing modelFreemiumFreemium
Starts at$15 month—
Public APINoNo
PlatformsWebWeb, macOS, Windows
CompanyLettiB—
Launched—2023
Last verifiedSep 1, 2026Sep 6, 2026

What our research says

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

TypingMind

The right buy if you already pay for API credits and resent a second $20/month subscription per model vendor. Pointless if you only use one model casually, because the raw ChatGPT or Claude app is free and better integrated.

Pros

  • One-time personal licence instead of a recurring fee is genuinely rare in this category
  • Model coverage is broad, including self-hosted OpenAI-compatible endpoints
  • Teams edition covers SSO, RBAC and audit logs, which most BYOK front ends do not

Cons

  • You pay token costs on top of the licence, so heavy use is not cheaper than a flat subscription
  • Feature parity with vendor apps always lags after a model launch
  • Desktop presence is mostly a browser install rather than a full native app

Which one fits

Choose LettiB if you need

  • 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

Choose TypingMind if you need

  • Heavy users who want one window across OpenAI, Anthropic and Google keys
  • Teams that need shared prompts and preset keys without giving everyone a seat on each vendor
  • People who want chat history in their own browser or storage rather than a vendor account

More comparisons

Browse all Multi-model Chat Aggregators →