AWS Lambda vs Cloudflare Workers 2026
AWS Lambda is a general-purpose serverless compute platform with broader AWS ecosystem integration and higher per-invocation pricing, while Cloudflare Workers is an edge-first platform with sub-millisecond latency and a simpler pricing model based on CPU time rather than invocations.
AWS Lambda
Serverless compute service that runs code in response to events within AWS infrastructure.
Enterprise teams building complex serverless architectures, data processing pipelines, backend APIs requiring AWS service integration, and workloads needing extended execution time.
Cloudflare Workers
Lightweight edge computing platform running JavaScript/TypeScript on Cloudflare's global network with sub-millisecond latency.
Developers building high-performance APIs, content delivery optimization, A/B testing middleware, rate limiting, request transformation, and globally distributed applications prioritizing latency.
Quick Answer
AI SummaryAWS Lambda is a general-purpose serverless compute platform with broader AWS ecosystem integration and higher per-invocation pricing, while Cloudflare Workers is an edge-first platform with sub-millisecond latency and a simpler pricing model based on CPU time rather than invocations.
Our Verdict
AI-assistedChoose AWS Lambda if you need long-running functions (up to 15 minutes), require broad language support, work extensively with other AWS services, or need massive memory allocation for data processing tasks. Choose Cloudflare Workers if you prioritize sub-millisecond latency, global edge execution, simple pricing, content delivery optimization, or need a lightweight platform for APIs and middleware.
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Choose AWS Lambda if
Best pickEnterprise teams building complex serverless architectures, data processing pipelines, backend APIs requiring AWS service integration, and workloads needing extended execution time.
Choose Cloudflare Workers if
Developers building high-performance APIs, content delivery optimization, A/B testing middleware, rate limiting, request transformation, and globally distributed applications prioritizing latency.
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Key Differences at a Glance
- Execution Location:✓ Cloudflare Workers wins(Edge locations (275+ data centers worldwide) vs Regional data centers (15+ AWS regions globally))
- Cold Start Latency:✓ Cloudflare Workers wins(<1ms typical vs 100-300ms typical)
- Pricing Model:$0.20 per 1M requests + $0.0000166667 per GB-second vs $0.50 per 1M requests + $12.50 per 1M CPU milliseconds
Key Facts & Figures
25 numeric metrics compared
| Metric | AWS Lambda | Cloudflare Workers | Ratio |
|---|---|---|---|
| Average Cold Start(milliseconds) | 300ms | <1ms | |
| Maximum Execution Time(seconds) | 900 | 30 | |
| Global Edge Locations(number) | 30+ regions | 275+ cities | |
| Free Tier Compute(requests/month) | 1,000,000 | 100,000 | |
| Supported Languages(count) | 7 languages | 2 (JS/TS, WASM) | |
| Typical API Response Latency(milliseconds) | 100-150ms | 20-40ms | |
| Concurrent Execution Limit(number) | 1,000 (default, adjustable) | Unlimited | — |
| Cold Start Latency(milliseconds) | 100-300ms | <1ms | |
| Per-Request Cost (Beyond Free Tier)(USD per 1M requests) | $0.20 | $0.50 | |
| Global Edge Locations(number of locations) | 15+ AWS regions | 275+ edge locations | |
| Language Runtime Support(count) | 12+ languages | 4 languages (JS/TS, Rust, C++, Python via WASM) | |
| AWS Service Integration Points(count) | 200+ AWS services | 30+ external APIs via fetch | |
| Maximum Execution Duration(seconds) | 900 seconds | 30 seconds | |
| Global Data Centers(regions) | Regional (6-12 per region) | 300+ edge locations | |
| Free Tier Requests Monthly(millions) | 1M requests | 10M requests | |
| Cost per Million Requests(USD) | $0.20 (compute only, excluding data transfer) | $0.50 (all-inclusive) | |
| Maximum Memory Allocation(MB) | 10,240MB | 128MB | |
| Supported Languages (Native)(languages) | 7 native (Node.js, Python, Java, Go, .NET, Ruby, C++) | 1 native (JavaScript/TypeScript) | |
| Typical Request Latency at User(milliseconds) | 50-200 ms (regional routing) | 5-50 ms (edge routing) | |
| Maximum Execution Time(seconds) | 900 seconds | 30 seconds | |
| Memory Allocation(megabytes) | 128MB to 10,240MB | 50MB fixed | |
| Global Data Center Coverage(locations) | 30+ AWS regions | 275+ edge locations | |
| Free Tier Requests Per Month(requests) | 1,000,000 | 500,000 | |
| Cost Per 10M Requests + 1GB Compute(USD) | $18.33 ($2 + $16.33 compute) | $2.50 | |
| Supported Programming Languages(languages) | 12 (Node.js, Python, Java, Go, Rust, C#, Ruby, PHP, Kotlin, PowerShell, Custom Runtime) | 4 (JavaScript, TypeScript, Rust, Go) |
Sourced from publicly available data ·
Key Differences
7 attributes compared head-to-head
- Regional data centers (15+ AWS regions globally)Execution LocationEdge locations (275+ data centers worldwide)(winner)
- 100-300ms typicalCold Start Latency<1ms typical(winner)
- $0.20 per 1M requests + $0.0000166667 per GB-secondPricing Model$0.50 per 1M requests + $12.50 per 1M CPU milliseconds
- 1M requests + 400,000 GB-secondsFree Tier Monthly Allowance10M requests + 10M CPU milliseconds(winner)
- 15 minutes (900 seconds)(winner)Maximum Execution Duration30 seconds
- 128MB to 10,240MB (10.24GB)(winner)Memory Configuration Range50MB to 128MB fixed
- 12+ languages (Node.js, Python, Java, Go, C#, Ruby, PHP, Rust, Kotlin, Swift, Gradle, PowerShell)(winner)Language SupportJavaScript/TypeScript, Rust, C++, Python (via WASM)
- Execution Location
AWS Lambda
Regional data centers (15+ AWS regions globally)
Cloudflare Workers
Edge locations (275+ data centers worldwide)(winner)
- Cold Start Latency
AWS Lambda
100-300ms typical
Cloudflare Workers
<1ms typical(winner)
- Pricing Model
AWS Lambda
$0.20 per 1M requests + $0.0000166667 per GB-second
Cloudflare Workers
$0.50 per 1M requests + $12.50 per 1M CPU milliseconds
- Free Tier Monthly Allowance
AWS Lambda
1M requests + 400,000 GB-seconds
Cloudflare Workers
10M requests + 10M CPU milliseconds(winner)
- Maximum Execution Duration
AWS Lambda
15 minutes (900 seconds)(winner)
Cloudflare Workers
30 seconds
- Memory Configuration Range
AWS Lambda
128MB to 10,240MB (10.24GB)(winner)
Cloudflare Workers
50MB to 128MB fixed
- Language Support
AWS Lambda
12+ languages (Node.js, Python, Java, Go, C#, Ruby, PHP, Rust, Kotlin, Swift, Gradle, PowerShell)(winner)
Cloudflare Workers
JavaScript/TypeScript, Rust, C++, Python (via WASM)
Full Comparison
| Attribute | AWS Lambda | Cloudflare Workers |
|---|---|---|
| Average Cold Start(milliseconds) | 300ms | <1ms(winner) |
| Typical API Response Latency(milliseconds) | 100-150ms | 20-40ms(winner) |
| Cold Start Latency(milliseconds) | 100-300ms | <1ms(winner) |
| Typical Request Latency at User(milliseconds) | 50-200 ms (regional routing) | 5-50 ms (edge routing)(winner) |
| Maximum Execution Time(seconds) | 900(winner) | 30 |
| Global Edge Locations(number) | 30+ regions | 275+ cities(winner) |
| Global Edge Locations(number of locations) | 15+ AWS regions | 275+ edge locations(winner) |
| Global Data Centers(regions) | Regional (6-12 per region) | 300+ edge locations(winner) |
| Free Tier Compute(requests/month) | 1,000,000(winner) | 100,000 |
| Per-Request Cost (Beyond Free Tier)(USD per 1M requests) | $0.20(winner) | $0.50 |
| Free Tier Requests Monthly(millions) | 1M requests | 10M requests(winner) |
| Cost per Million Requests(USD) | $0.20 (compute only, excluding data transfer)(winner) | $0.50 (all-inclusive) |
| Free Tier Requests Per Month(requests) | 1,000,000(winner) | 500,000 |
Show 1 more attributeCost Per 10M Requests + 1GB Compute(USD) $18.33 ($2 + $16.33 compute) $2.50 | ||
| Supported Languages(count) | 7 languages(winner) | 2 (JS/TS, WASM) |
| Memory Range(MB) | 128-10,240MB | 50MB fixed |
| Memory Allocation(megabytes) | 128MB to 10,240MB(winner) | 50MB fixed |
| Concurrent Execution Limit(number) | 1,000 (default, adjustable) | Unlimited |
| Language Runtime Support(count) | 12+ languages(winner) | 4 languages (JS/TS, Rust, C++, Python via WASM) |
| AWS Service Integration Points(count) | 200+ AWS services(winner) | 30+ external APIs via fetch |
| Database Integration Complexity(native integrations) | 200+ AWS services (RDS, DynamoDB, S3, SNS, SQS) | Limited (D1 SQLite, KV, manual integrations) |
| Maximum Execution Duration(seconds) | 900 seconds(winner) | 30 seconds |
| Maximum Memory Allocation(MB) | 10,240MB(winner) | 128MB |
| Maximum Execution Time(seconds) | 900 seconds(winner) | 30 seconds |
| Supported Languages (Native)(languages) | 7 native (Node.js, Python, Java, Go, .NET, Ruby, C++)(winner) | 1 native (JavaScript/TypeScript) |
| Global Data Center Coverage(locations) | 30+ AWS regions | 275+ edge locations(winner) |
| Supported Programming Languages(languages) | 12 (Node.js, Python, Java, Go, Rust, C#, Ruby, PHP, Kotlin, PowerShell, Custom Runtime)(winner) | 4 (JavaScript, TypeScript, Rust, Go) |
AWS LambdaShow 1 more attribute
Pros & Cons
10 pros·5 cons across both
AWS Lambda
Pros
- Supports 12+ programming languages including Python, Java, Go, C#, Ruby, and Rust
- 15-minute maximum execution time enables batch processing and long-running workloads
- Up to 10.24GB RAM allocation supports memory-intensive applications like ML inference
- Deep integration with 200+ AWS services (S3, DynamoDB, SNS, SQS, API Gateway, CloudWatch)
- Extensive monitoring via CloudWatch with custom metrics and detailed logs
Cons
- Cold start latency of 100-300ms makes it unsuitable for ultra-low-latency applications
- Pricing based on both request count and GB-seconds can become expensive at scale (100M+ monthly invocations)
Cloudflare Workers
Pros
- Sub-millisecond cold start with execution on 275+ edge locations worldwide
- Generous free tier: 10M requests and 10M CPU milliseconds monthly (vs Lambda's 1M requests)
- Simpler pricing based on CPU milliseconds rather than invocations, more predictable for variable traffic
- Built-in DDoS protection, WAF, and global CDN integration for content delivery
- Immediate global deployment without regional configuration selection
Cons
- 30-second maximum execution limit prevents batch processing and long-running tasks
- Limited to 128MB memory maximum, unsuitable for memory-intensive workloads or large dataset processing
- Smaller ecosystem with fewer third-party integrations compared to AWS Lambda
Frequently Asked Questions
5 questions
It depends on traffic patterns. Lambda costs $0.20 per 1M requests ($20) plus compute time. At 100M requests with 256MB memory and 100ms average execution, that's approximately $20 + $1,667 = $1,687/month. Cloudflare Workers costs $0.50 per 1M requests ($50) plus $12.50 per 1M CPU milliseconds. At 100M requests × 50ms average = 5B CPU milliseconds = $62.50, totaling $112.50/month. Workers is significantly cheaper for this scenario due to lower compute pricing, but Lambda wins if you need variable memory allocation (up to 10GB) or execution longer than 30 seconds.
Resources & Learn More
Curated sources to dive deeper
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Wikipedia
- W
AWS Lambda on Wikipedia (opens in new tab)
Serverless compute service that runs code in response to events within AWS infrastructure.
- W
Cloudflare Workers on Wikipedia (opens in new tab)
Lightweight edge computing platform running JavaScript/TypeScript on Cloudflare's global network with sub-millisecond latency.
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