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GPT-Pilot

Pythagora (open source)

Open-source research agent that builds whole apps step by step.

From /monthFree

BillingBYO-key (usage)

Contextmodel-dependent

Best forDevops experimenting with prompt-to-app generation locally

Free OSS; pay for model usage via any provider

Top models

GPT-5Claude Sonnet 4

Limits

whatever your API key allows

Free tier

free software (model usage billed separately)

Strengths

Fully open source
Prompt-to-app
Runs locally

Weaknesses

Research-grade polish
You supply & pay for the model

Go to GPT-Pilot → Affiliate notice.

Affiliate notice. This page may contain referral/affiliate links. We may receive compensation if you sign up via these links — at no extra cost to you. Prices and limits are indicative and without guarantee (as of 2026).