Vad svarar AI?

A Swedish tool for small business owners. You type your company's name, trade and town, and four AI services (ChatGPT, Gemini, Claude and Perplexity) each get two customer questions with web search turned on:

• "Jag behöver en {bransch} i {ort}. Vilka rekommenderar du och varför?"
• "Vad vet du om {företag} i {ort}? Vad säger kunderna?"

The eight answers stream in while you watch, with the sources each service read. A ninth call summarises them: which services know the company, whether any recommend it, which competitors come up, what the services claim about the company and three things to fix. A fetch-only check shows whether AI crawlers can read the website (robots.txt, llms.txt, text in the HTML and structured data).

Built by Kenny Damgren. Live at vad-svarar-ai.kegren.com.

Stack

• TanStack Start 1.169 on Cloudflare Workers, with D1 for runs and the daily budget
• TanStack AI 1.0 with the OpenRouter adapter. Each answer is its own useChat stream against /api/svar; the summary uses outputSchema and streams partial objects
• @openrouter/sdk is pinned to 0.13.20. It drops annotations from the stream, so sources are read from a tee of the raw SSE through a custom HTTPClient (src/lib/kallor.server.ts)
• workers-og (Satori and resvg) for the share image, Turnstile, Tailwind 4, Biome via ultracite

The cheap models are set in src/lib/modeller.ts. One run costs about 0.18 dollars.

How the cost stays bounded

Pressing "Fråga AI" goes through these checks in order (src/lib/korning.functions.ts):

1. Turnstile, verified on the server.
2. The same company, trade and town within a day redirects to the saved run.
3. A daily budget of 100 kronor in D1, summed from OpenRouter's usage.cost.
4. Three runs per IP address and day. Addresses are stored as salted hashes.

Each run also allows at most 16 model calls, all within 15 minutes of the start, and answers already saved are replayed instead of asked again. A daily cron deletes runs older than 30 days.

Running it locally

bun install
bun run db:migrate
bun run dev

Put OPENROUTER_API_KEY in .dev.vars. The dev server uses Cloudflare's Turnstile test keys, so no other secrets are needed. A full run costs real money; /dev/resultat/<id> and /dev/lasbarhet/<id> show saved runs for free.

bun run test
bunx tsc --noEmit
bunx biome check src

Deploying

The Worker needs three secrets: OPENROUTER_API_KEY, IP_SALT and TURNSTILE_SECRET. Apply migrations with wrangler d1 migrations apply vad-svarar-ai --remote, then run bun run deploy. The custom domain is set in wrangler.jsonc.

License

MIT