Compare AI tools

	Aider A	Stripe Link A	Devin A	ChatGPT Operator B
Tagline	Terminal-based AI pair programmer. Git-aware, model-flexible.	A digital wallet that lets AI agents spend on your behalf — without ever seeing your actual card number.	Cognition Labs' autonomous coding engineer.	OpenAI's browser agent. Clicks and types on websites for you.
Category	Coding	Agents	Agents	Agents
Pricing	Free (open source) + whatever API you use	Free for consumers; standard Stripe per-transaction fees for merchants	$500/mo	Included with ChatGPT Pro $200/mo
Best for	Developers who want open-source tooling with full control.	Anyone running autonomous AI agents (shopping bots, booking assistants, personal AI) who wants delegated payment capability without handing over raw card data.	Engineering teams offloading tickets. Ops/platform work.	Power users willing to pay $200/mo for a browser bot.
Strengths	Works in any terminal Auto-commits changes with meaningful messages Works with any model (Claude, GPT, local) Minimal learning curve	First mainstream wallet with a built-in agent authorization layer — AI agents get one-time-use cards, not your real credentials OAuth-based approval flow means you review every agent spend request before payment credentials are shared 250M+ existing Link users means instant network coverage at hundreds of thousands of Stripe-powered merchants Developer-friendly: agent builders can use Link's wallet infra instead of rolling their own payment rails Subscription tracking, auto payment-method updates, and 90-day purchase protection bundled in	Works like an engineer — takes Slack tasks, opens PRs Handles multi-hour engineering work Reports back with what it did	Actually uses websites — fills forms, clicks, checks out Built into ChatGPT Good for repetitive web tasks
Weaknesses	Terminal-only Less agentic than Claude Code Setup on Windows is fiddly	Stablecoin, agentic token, and BNPL agent-payment support is still 'coming soon' — traditional cards only at launch Per-transaction approval flow can be tedious for high-frequency agent tasks until spending-limit presets ship Merchant adoption for agent checkout paths is still early; real-world agentic commerce coverage is thin	Expensive Best for well-scoped tasks Not for solo hobbyists	Slow vs doing it yourself Breaks on complex auth flows $200/mo gate
Kai's verdict	A-tier. The right answer if you want open-source + terminal-native + model-agnostic.	Stripe Link is the most credible first move toward a real agentic payment layer — the one-time-use card model is genuinely clever, and the existing merchant network gives it a head start no startup wallet can match. But the 'approve every transaction' UX will get old fast, and the hard part (autonomous spending with guardrails) is still on the roadmap. (Verdict pending Phi's full review.)	A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.	B-tier. Still early. Manus is more flexible for less money.
Link	Open →	Open →	Open →	Open →