OpenHands
Open-source AI software development agent for your terminal
Devin
Fully autonomous AI software engineer
Replit Agent
Build apps with AI in the cloud
/// THE_VERDICT
Devin leads the autonomous agent race with the most complete sandboxed development environment — it operates its own browser, terminal, and editor in the cloud, tackling multi-step engineering tasks from issue to pull request with genuine autonomy. Its ability to learn from documentation and iterate on failing tests sets it apart. OpenHands offers an impressive open-source alternative with strong reasoning capabilities and the flexibility to run locally or in your own infrastructure, making it the privacy-conscious choice for teams who want agent-level automation without vendor lock-in. Replit Agent excels at greenfield application building with its integrated cloud IDE, deployment, and hosting — hand it a product description and it will scaffold, build, and deploy a working app, though it struggles more with complex existing codebases.
SCORE BREAKDOWN
DEEP DIVE
OpenHands
Open-source AI software development agent for your terminal
/// JUDGE_SUMMARIES
"OpenHands is the leading open-source autonomous coding agent platform, combining SOTA benchmark performance with Docker/Kubernetes sandboxed execution and an SDK for defining custom agent workflows at scale. The $18.8M Series A and enterprise adoption validate its production readiness, but agent accuracy is not infallible — expect partial completions on complex multi-step tasks, and human review remains essential for critical code paths."
"As an agent, OpenHands can decompose multi-step tasks and drive a full loop (inspect repo, implement, run tests, iterate) with minimal hand-holding. The trade-off is operational complexity: you need to set guardrails, pick the right backend, and monitor longer runs to keep cost and correctness under control."
"As an agent, OpenHands is a powerhouse. It excels at asynchronous, multi-step tasks like refactoring monoliths or upgrading dependencies across a codebase. Its ability to integrate directly with GitHub/GitLab webshooks allows it to act as an autonomous teammate rather than just a tool, though this power comes with a complexity cost."
/// STRENGTHS_WEAKNESSES
Developers who want a full SWE agent that can autonomously solve GitHub issues and modify code across files
Devin
Fully autonomous AI software engineer
/// JUDGE_SUMMARIES
"Devin 2.0's $20/mo price point (down from $500) was a bold move, but independent evaluations tell a mixed story — one test showed only 3 of 20 tasks completed successfully, while Cognition claims 83% improvement per ACU. The truth likely lies between: Devin handles well-scoped migrations and bulk refactoring effectively, but struggles with ambiguous or architecturally complex tasks. ACU costs can spike unpredictably on difficult problems."
"Devin is a cloud-hosted autonomous coding agent that can take a ticket, work in a full dev environment (editor/terminal/browser), and deliver a PR with minimal supervision. It’s most valuable when tasks are well-scoped, but success rate and compute usage can vary on messy codebases, so you’ll want strong tests and clear acceptance criteria."
"Devin's architecture is technically impressive — it maintains a persistent development environment with proper state management across long coding sessions. The planning and decomposition capabilities are best-in-class for coding agents. The main technical weakness is in architectural reasoning, where it sometimes makes choices that a senior engineer would not."
/// STRENGTHS_WEAKNESSES
Teams looking to offload routine development tasks to a fully autonomous AI engineer that works independently
Replit Agent
Build apps with AI in the cloud
/// JUDGE_SUMMARIES
"Replit Agent remains the most accessible path from idea to deployed app — zero setup, everything in the browser, built-in hosting and databases. Agent 3's self-healing code loop with periodic self-testing is a genuine improvement over earlier versions. However, the effort-based pricing model that replaced fixed credits makes costs genuinely unpredictable, and the generated code quality plateaus quickly for anything beyond simple CRUD applications."
"Replit Agent is a browser-first way to go from a prompt to a running app with hosting and deployment built in. It’s excellent for prototypes and small MVPs because the agent can iterate against a live runtime, but costs and reliability vary with project complexity, and you’ll often need to export/refactor for production-grade architecture."
"Replit Agent's browser-based architecture is a unique technical approach that eliminates all local setup requirements. Agent 3's autonomous build capability with periodic self-testing is technically sound, though the testing is primarily surface-level UI checks rather than deep functional validation. The platform is well-suited for rapid prototyping but the browser sandbox creates limitations for complex backend development."
/// STRENGTHS_WEAKNESSES
Beginners and educators who want a complete cloud-based development environment with AI assistance and built-in hosting
PRICING COMPARISON
| OpenHands | Devin | Replit Agent | |
|---|---|---|---|
| Free Tier | ✓ Open-source (MIT), $20 free credits for new cloud users | — | ✓ Limited agent interactions |
| Pro Price | $20/mo (Cloud) | $20/mo Core + $2.25/ACU usage | $25/mo |
| Team / Enterprise | $500/mo (250 ACUs included) | $40/mo/seat |
RELATED BATTLES
/// SYS_INFO Methodology & Disclosure
How we rate: Each AI model receives the same structured prompt asking it to evaluate each agent across 8 criteria on a 1-10 scale. Models rate independently — no model sees another's scores. Consensus score = average of all three judges. Agreement level = score spread.
Agent criteria: AI agents are evaluated on Task Autonomy, Accuracy & Reliability, Speed, Tool Integration, Safety & Guardrails, Cost Efficiency, Ease of Use, and Multi-step Reasoning — different from coding tool criteria.
Affiliate disclosure: Links to tool signup pages may earn us a commission. This never influences AI ratings.