SWE-2

SWE-2

Cognition
+
+

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About

Begin makes AWS deployment a breeze. Run on the same global network as industry leaders, while managing your apps from Begin’s powerful, user-friendly interface. Start your path to your next promotion. Learn advanced full-stack backend today. Build resiliently with Begin’s standards-driven suite of open source tools. Seamlessly upgrade to interactive web components. Exceptional developer experience with low friction and smart, configurable defaults. Local-first development paired with identical staging and production environments. Infrastructure as code makes cloud provisioning simple and deterministic. Informed by years of evidence-based research and development, this approach is also used by some of the largest properties on the internet today. Begin apps deliver the benefits of FWAs to web developers out of the box, combining incredible ease of implementation with unrivaled reliability, power, and flexibility.

About

SWE-2 is Cognition’s advanced coding model designed to improve software engineering performance while reducing the cost of agentic coding workflows. The model is post-trained from Kimi K3 and uses reinforcement learning to optimize multiple reasoning-effort levels within a single training run. SWE-2 is designed to explore codebases more selectively, begin implementation sooner, and complete tasks with fewer redundant reads and reasoning steps than earlier Cognition models. Its capabilities include code generation, debugging, test creation, verification, repository analysis, and complex terminal-based software engineering tasks. The model also emphasizes stronger engineering judgment, end-to-end test coverage, instruction following, and evidence-based verification of user assumptions. SWE-2 is available through Devin Desktop and Devin CLI, with broader rollout planned across Devin Web and Fusion.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers interested in a solution to build fast web applications

Audience

Software developers, engineering teams, AI coding agent users, DevOps professionals, and organizations that need capable agentic software engineering with lower execution cost and more efficient reasoning

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$8 per month
Free Version Supported
Free Trial Not Supported

Pricing

$20/month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5

Pros & Cons from Real Users

Pros

  • The biggest thing that stands out is the cost-performance balance. SWE-2 is not just trying to top one benchmark; it is trying to get very close to frontier coding performance at a much lower cost. For developers, that matters a lot. Coding agents can burn through tokens quickly when they are reading files, making edits, running tests, and iterating. A model that performs near the top while being meaningfully cheaper is much easier to use every day. I also like that SWE-2 seems built for real software engineering workflows, not just isolated code snippets. The strong DeepSWE and Terminal-Bench results make it especially interesting for repo-level tasks, debugging, tool use, and longer agent runs.

Cons

  • Benchmarks are useful, but real projects bring messy architecture, flaky tests, undocumented behavior, and weird edge cases.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Begin
Canada
begin.com

Company Information

Cognition
Founded: 2023
United States
cognition.com

Alternatives

Alternatives

SuiteFlow

SuiteFlow

SuiteFlow Software
SWE-1.7

SWE-1.7

Cognition
SWE-1.6

SWE-1.6

Cognition

Categories

Categories

AI Coding Models Supported
AI Models Supported

Integrations

.NET Not Supported
Amazon Web Services (AWS) Supported
C Not Supported
C++ Not Supported
Devin Desktop Not Supported
Go Not Supported
JavaScript Not Supported
Kotlin Not Supported
Kubernetes Not Supported
MATLAB Not Supported
Objective-C Not Supported
PHP Not Supported
PowerShell Not Supported
Python Not Supported
SQL Not Supported
Scala Not Supported
Solidity Not Supported
TypeScript Not Supported
XML Not Supported
YAML Not Supported

Integrations

.NET Supported
Amazon Web Services (AWS) Not Supported
C Supported
C++ Supported
Devin Desktop Supported
Go Supported
JavaScript Supported
Kotlin Supported
Kubernetes Supported
MATLAB Supported
Objective-C Supported
PHP Supported
PowerShell Supported
Python Supported
SQL Supported
Scala Supported
Solidity Supported
TypeScript Supported
XML Supported
YAML Supported
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