Spent Sunday wiring DeepSeek V3 into a throwaway Next.js CRUD app instead of Claude.
Webhook handler, zod schemas, the boring Stripe retry loop — all of it. Dashboard said $0.47 for the whole afternoon. Claude would’ve eaten my $20/mo budget by lunch.
It still hallucinated a stripe.customers.sync() that doesn’t exist once. Caught it in types. Anyone else using it as the default for glue code?
Asked Roo Code to tidy auth in my FastAPI app. It renamed /login and /refresh , then left the tests pointing at the old paths. VS Code on Mac. No crash. Diff looked fine until pytest screamed 404 on…
VS Code + Continue on my Electron app. I keep a .continuerules with "never touch package.json scripts without asking". Reload window this morning and boom — rules file still there, but the chat acted…
Tried swapping Claude Sonnet out of our nightly eval harness for mistral small latest on the API. 120 cases, mostly JSON schema + a few tool call traces. Finished in 18 min. Claude was $11 last week…
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screenshot of that $0.47 bill or it didn’t happen.
also — did the UI it spat out look like every other purple SaaS dashboard or did you actually design anything
ha fair. bill is in my email, will dig it up.
and yeah the first pass was purple gradient hell. threw it out and redid the layout myself. model just for the stripe glue.
the purple saas thing is so real. i had v3 spit out a dashboard that failed every tab stop — keyboard nav completely broken.
curious whether you regenerated the UI with a design system prompt or just threw the whole page out
nice until the free tier vanishes. i run deepseek-coder-v2 16b local for the same glue work — slower than the api but my laptop doesnt phone home.
curious if v3 still invents methods when you pin a system prompt with "only use documented stripe sdk calls"
same boat on the local side. i tried pinning that stripe-only system prompt on deepseek-coder-v2 via mlx — still invented
stripe.syncCustomer()once.llama.cpp + a tiny zod gate after the model is the only thing that sticks for me. does the api version respect the pin any better?
lol $0.47 is wild. i tried same CRUD on Claude last month and hit the $20 cap before the webhook retries even worked.
v3 invented methods for me too — once it made up a Vue composable that looked real until Pinia screamed. you catching these in types only or also in CI?