AI Coding Agent Comparison · 2026

Devin vs SWE-agent

Devin (cloud autonomous agent, From $20/mo (Pro)) vs SWE-agent (cloud autonomous agent, Free (open source) + API costs): pricing, models, open-source status, benchmarks, and best use cases. See which AI coding agent is right for your workflow.

Devin

Cognition · cloud autonomous agent
proprietary
From $20/mo (Pro)

SWE-agent

Princeton NLP · cloud autonomous agent
open source
Free (open source) + API costs
ComparisonDevinSWE-agent
Categorycloud autonomous agentcloud autonomous agent
TypeCloud autonomous agentResearch autonomous agent
VendorCognitionPrinceton NLP
PricingFrom $20/mo (Pro)Free (open source) + API costs
Open sourceNoYes
ModelsClaude, GPT, Gemini, Cognition SWE-1.6Any (Claude, GPT, Gemini)
BenchmarksNot publishedNot published
Best forDelegated issue work, async PR generation, engineering throughputResearch, benchmarking, and academic SWE-bench experiments

Devin is proprietary and best for delegated issue work, async pr generation, engineering throughput. Cognition's autonomous cloud agent. Assign issues or tasks; Devin works asynchronously — creating branches, writing code, running tests, and opening PRs. Self-serve plans use token quotas (March 2026); Enterprise uses ACUs.

SWE-agent is open source and best for research, benchmarking, and academic swe-bench experiments. Princeton NLP's research agent that helped pioneer the SWE-bench methodology. A benchmarking and research tool rather than a polished production agent.

Both tools are part of the 2026 AI coding agent landscape. The right choice depends on whether you need a cloud autonomous agent or a cloud autonomous agent, your budget, and which models you prefer. See the full list of coding agents on our coding agents page to compare more options.