HNM500/twiga-ai

Twiga AI — Tanzania's AI companion, built from Scira OSS # Twiga AI Twiga AI is an AI chat companion built for Tanzania. The current MVP provides direct chat and Exa-backed cited web search, with model requests routed through OpenRouter. This public web application is derived from Scira at commit `7215d53023030e247dfc30ffc2ffe44257094f69`. Twiga AI and Scira are licensed under the GNU Affero General Public License v3.0. See UPSTREAM.md for provenance. The approved logo, palette, typography, language, and usage rules are recorded in docs/BRAND.md. ## Current product surface - Guest AI chat - Cited web search through Exa - Reviewed Tanzanian bank discovery through the private Twiga Core directory - Saved chats, temporary chats, public sharing and PDF/DOCX export - OpenRouter model routing and usage-cost accounting - Better Auth with permanent email/password accounts, PostgreSQL-backed sessions, account export and deletion - Railway Redis-backed anonymous rate limits, resumable streams and Twiga Apps confirmation handoffs - Feature-gated Twiga Apps (MCP) beta with encrypted credentials and outbound-network safeguards - Feature-gated YouTube search retained for later validation - Railway deployment with database migrations and health checks - Structured operational events for request errors, AI latency, token usage and model cost ## Model portfolio Twiga keeps model selection server-side and exposes one product identity to users: - DeepSeek V4 Flash handles everyday chat and cited-search synthesis - GPT-OSS 20B handles low-cost utility work such as titles, follow-ups and prompt enhancement - GLM 5.2 handles requests that explicitly require deep analysis, complex comparisons or business/decision planning - The chat-versus-web decision remains deterministic and incurs no model call OpenRouter provider routing uses fallbacks. User-facing and hard-reasoning calls prefer lower latency, while utility calls prefer lower price. Routine companion reasoning is disabled so tool calls and visible answers are not displaced by hid …