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What is SWE-1.7?

SWE-1.7 is a frontier software engineering model from Cognition built for advanced coding agents and long-horizon development workflows. It is designed to deliver strong coding intelligence at a fraction of the cost of some leading frontier alternatives, improving the cost-performance balance for real software engineering work. The model is trained from a Kimi K2.7 base and further improved through Cognition’s reinforcement learning pipeline, showing that additional post-training can still produce major capability gains. SWE-1.7 is optimized for tasks such as bug fixing, feature implementation, code migrations, terminal-based workflows, multilingual software engineering, large codebase navigation, and end-to-end validation. It performs especially well on longer asynchronous tasks where an AI agent needs to gather context, inspect files, test hypotheses, make changes, and verify results over an extended period. Cognition trained the model with infrastructure improvements that preserve entropy, stabilize training, support multi-cluster reinforcement learning, and improve fault tolerance across large distributed runs. The training process also focused heavily on data quality, using automated execution tests, verifier quality checks, reward-hacking prevention, and task filtering to create stronger learning signals. SWE-1.7 includes self-compaction, allowing it to summarize its working state and continue long projects even when tasks exceed the raw context window. It also uses an alternating length penalty to encourage concise reasoning on easier tasks while maintaining deeper exploration when a problem requires it. In practice, the model tends to explore codebases carefully, read relevant files, search for hidden requirements, test edge cases, and experiment before deciding how to implement a fix. Available in Devin across web, desktop, and CLI via Cerebras, SWE-1.7 gives engineering teams a powerful model for running scalable, cost-efficient coding agents.

What is SWE-1.6?

SWE-1.6 represents a state-of-the-art AI model aimed at the engineering sector, developed by Cognition and integrated within the Windsurf environment, with ambitions of boosting both core intelligence and what Cognition defines as “model UX,” which pertains to the overall user interaction experience with the AI. This newest version signifies a major evolution in the SWE model lineup, showing a performance boost exceeding 10% on metrics such as SWE-Bench Pro when juxtaposed with its earlier version, SWE-1.5, while still maintaining similar foundational features. Engineered from the ground up, SWE-1.6 seeks to enhance both the caliber of reasoning and user fulfillment, effectively addressing issues found in past versions, such as the propensity to overanalyze simple inquiries, unnecessary complexity in problem-solving, repetitive patterns of reasoning, and an undue dependence on terminal commands rather than leveraging specific tools. Among the advancements introduced in SWE-1.6 are improved functionalities, including a higher occurrence of concurrent tool utilization, faster context retrieval, and a reduced need for user input, all of which contribute to more seamless and effective workflows. Furthermore, these enhancements lead to a more user-friendly interaction experience, ensuring that tasks can now be completed with unprecedented ease and efficiency, ultimately reflecting the commitment to continuous improvement in AI interaction design. This model not only seeks to streamline processes but also aims to foster a deeper connection between users and technology.

Media

Media

Integrations Supported

Devin
Devin Desktop
C
C#
Dart
Go
HTML
Kotlin
Kubernetes
Objective-C
PowerShell
Python
Ruby
Rust
SQL
Scala
Terraform
TypeScript
XML
YAML

Integrations Supported

Devin
Devin Desktop
C
C#
Dart
Go
HTML
Kotlin
Kubernetes
Objective-C
PowerShell
Python
Ruby
Rust
SQL
Scala
Terraform
TypeScript
XML
YAML

API Availability

Has API

API Availability

Has API

Pricing Information

$20/month
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Cognition

Date Founded

2023

Company Location

United States

Company Website

cognition.com

Company Facts

Organization Name

Cognition

Date Founded

2023

Company Location

United States

Company Website

cognition.ai/blog/swe-1-6

Categories and Features

Categories and Features

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