Text Grand Central

V3 Engine Complete — UX Features in Progress

Text Grand Central (formerly FidelTrad) is an AI-powered literary translation platform that preserves style, tone, and cultural nuances across languages.

Named after Jasper Fforde's Thursday Next universe — where Jurisfiction agents police the integrity of literary texts — the platform runs multiple specialized AI agents that guard translation quality.

The V3 engine coordinates Claude Opus, Sonnet, and Haiku in a tiered pipeline: voice calibration, cultural consultation, back-translation validation, confidence escalation, and comparative translation.

Currently processing real book manuscripts with 89% quality scores compared to single-model approaches.

Architecture

Tech Stack

Next.js 15TypeScriptClaude AIPostgreSQLDrizzle ORMDocker

Key Features

✓Multi-agent translation pipeline (7+ specialized agents in V3)
✓Voice calibration and fingerprinting across 300+ pages
✓Back-translation validation for quality assurance
✓Cultural consultant agent for cross-cultural adaptation
✓Confidence escalation with automatic model tier selection
✓Comparative translation with variant ranking
✓Glossary extraction and consistency management
✓Human-in-the-loop review interface

Challenges

The biggest challenge was maintaining literary voice across entire novels. V3 solves this with voice fingerprinting — tracking each character's speech patterns, pronoun formality (tu/vous, du/Sie), and register shifts across chapters. A tiered model system routes complex literary passages to Opus while Haiku handles straightforward narrative.