AWS Lambda vs Azure Functions

Serverless compute comparison, taking into account recent AI sandbox limits and new pricing tiers introduced in late‑2026.

Updated November 5, 2026

Score Breakdown

AWS Lambda

Pick

Performance

Cost value

Features

Maturity

Total: 32 / 40

Azure Functions

Performance

Cost value

Features

Maturity

Total: 30 / 40

Strengths & Weaknesses

AWS Lambda

Largest ecosystem of triggers and layers

Supports up to 15 min execution (no hard cap like Vercel), aligns with Render’s unlimited sandbox trend

Integrated with Bedrock AgentCore for on‑demand AI agents

Cold‑start latency higher for Java/.NET runtimes

Pricing tiers can become opaque with added data‑transfer costs

Azure Functions

Native integration with Azure Event Grid & Logic Apps

Generally cheaper per‑million‑invocation pricing tier introduced Q3 2026

Strong support for .NET and PowerShell workloads

Region coverage slightly narrower than Lambda

Feature set for AI agent orchestration less mature than Bedrock integration

When to Choose

AWS Lambda

Best when you need the richest trigger ecosystem and direct AI‑agent integration.

Azure Functions

Best for .NET‑centric teams seeking lower per‑invocation cost and tight Azure service coupling.

IT Intelligence Verdict

Pick: AWS Lambda

Both platforms are solid, but AWS Lambda’s broader ecosystem and emerging AI agent capabilities make it the more versatile choice, especially for organizations already invested in the AWS stack.

Try it out

AWS

12-month free tier

Try free

Microsoft Azure

$200 free credit

Try free

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