What is App Stack Builder?

App Stack Builder is a free AI-powered tool that helps founders and developers choose the right tech stack for their projects based on budget, app type, team size, and skill level.

What is the best tech stack for SaaS in 2026?

The best tech stack for SaaS in 2026 typically includes Next.js 16 for frontend, Supabase for database and auth, Vercel for hosting, Stripe for payments, and PostHog for analytics. App Stack Builder can generate a personalized recommendation based on your specific budget and requirements.

Is App Stack Builder free to use?

Yes, App Stack Builder is completely free to use. You can generate unlimited tech stack recommendations without any cost.

What types of apps can I build with the recommended stacks?

App Stack Builder supports various app types including SaaS applications, web apps, mobile apps, e-commerce stores, internal tools, and AI/ML products.

How much does a SaaS tech stack cost per month?

A modern SaaS tech stack can cost anywhere from $0-50/month for bootstrapped startups using free tiers, $100-300/month for growth-stage startups, to $500+/month for enterprise-ready infrastructure. App Stack Builder helps you find the best tools within your specific budget.

What is the best tech stack for solo founders?

For solo founders, we recommend Next.js + Vercel (free), Supabase (free tier), Supabase Auth (free), Stripe (pay as you go), and Plausible or PostHog for analytics. This stack can run your entire SaaS for under $50/month.

Can I export my tech stack recommendations?

Yes, you can export your tech stack recommendations as a PDF document or copy them to your clipboard. You can also share a link to your stack with others.

GPU Cloud & Inference

Lambda: Pricing, Features & Alternatives

Lambda is the training-focused GPU cloud. It offers on-demand instances with ML frameworks preinstalled, and 1-Click Clusters of 16 to 256+ interconnected GPUs reserved for two weeks up to a year. On-demand pricing per GPU-hour as of September 2026: an H100 SXM is $3.99–4.29, an H100 PCIe $3.29, a GH200 $2.29, an A100 from $1.99, and a B200 $6.69–6.99. Clusters cost more per GPU-hour ($5.54–6.16 for H100, $8.87–9.86 for B200) because they come with the high-bandwidth interconnect multi-node training needs. Longer commitments are quoted.

Lambda Pricing Plans (2026)

Plan	Price	Highlights
On-demand instancesPopular	H100 PCIe $3.29 / GPU-hour — A100 from $1.99	H100 SXM $3.99–4.29 / GPU-hour · GH200 $2.29 / GPU-hour · B200 $6.69–6.99 / GPU-hour
1-Click Clusters	H100 from $5.54 / GPU-hour (2-week to 1-year terms)	16 to 256+ interconnected GPUs · B200 clusters from $8.87 / GPU-hour

Pricing summary: Usage-based. Always confirm current pricing on the official site.

Key Lambda Features

H100 SXM $3.99–4.29 / GPU-hour
GH200 $2.29 / GPU-hour
B200 $6.69–6.99 / GPU-hour

Pros

+Built for training, with multi-node clusters on short terms
+ML stack preinstalled, so there is little setup
+Among the cheapest GH200 and A100 hours

Cons

−On-demand capacity is often sold out
−No scale-to-zero serverless inference
−H100 on-demand costs more than Runpod

Best Lambda Alternatives

Compare all

Runpod

Usage-based

Replicate

Usage-based

Lambda Compared

Lambda vs Replicate Lambda vs Runpod

Lambda FAQ

What is Lambda used for?⌄

Lambda is a gpu cloud & inference tool. A GPU cloud built for AI training: on-demand H100 and B200 instances and 1-Click Clusters for multi-node jobs.

Is Lambda free?⌄

Lambda does not offer a permanent free tier.

How much does Lambda cost?⌄

Lambda uses usage-based (pay-as-you-go) pricing — see the official pricing page for current rates.

What are the best Lambda alternatives?⌄

Popular Lambda alternatives include Runpod, Replicate. Compare pricing and features on our Lambda alternatives page.