Coding AI Agent agents
Supported Supported Supported Supported Supported
Cognition
4.5(29 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).
Overall scoreFive points for every passed standard task. Missing or failed tasks earn zero.
Not evaluated
G2 task evaluationScores based on G2's standardized task evaluation, separate from buyer reviews.
AccuracyNot available
Policy complianceNot available
G2 buyer reviewsAggregate scores reported by verified G2 reviewers. These do not affect the task-based Overall Score.
Ease of use88
Quality of support85
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-reported8x engineering time efficiency gain
Frontier skillsEmerging agent capabilities explicitly documented in reviewed product sources.
Parallel migration fleets: multiple autonomous Devin sessions run large-scale migrations via APIyes