Coding AI Agent agents
Supported Supported Supported Supported Supported
Cognition
4.3(82 G2 reviews)San Francisco, USAFounded 2023
Devin is an autonomous AI software engineer that plans, writes, tests and ships code inside a team's codebase, for enterprise engineering teams. Cognition acquired Windsurf (2025).
Task success scoreEach passed standard task earns five points. Scores average comparable runs; failed or missing tasks earn zero. Response quality is scored separately. Displayed scores are rounded.
Not evaluated
Response qualityAccuracy and policy compliance describe response quality separately from the task success score and buyer reviews.
AccuracyNot available
Policy complianceNot available
G2 buyer reviewsAggregate scores reported by verified G2 reviewers. These do not affect the task success score.
Ease of use87
Quality of support84
Estimated autonomyA sourced estimate of how independently the agent can plan and complete work on the L1–L5 scale.
Where this agent sits on the L1–L5 autonomy scale.
L3
L1L2L3L4L5
Skills
The five shared skills reviewed for products in this category.
Code Review
Feature Implementation (Issue to PR)
Refactoring & Migration
Test Generation & Validation
Performance claims
Vendor-reportedFaster problem solving
Up to 4x faster problem solving
View sourceHigher resource efficiency
2x more resource efficient
View sourceHigher PR merge success
~67% of its PRs merged (up from ~34%)
View sourceFrontier skills
Emerging capabilities selected for this evaluation category.
Autonomous Browser Control
Drives a real web browser—clicking buttons, filling forms, and viewing pages like a user would—to check that an application actually works and fix problems it finds.
View source