Cognition's SWE-2 logo

Coding / product dossier

Cognition's SWE-2

A coding model in Devin Desktop and CLI optimized for lower cost and fewer turns.

Product brief

What Cognition's SWE-2 does.

SWE-2 is Cognition's new coding model, post-trained from Kimi K3 with RL that optimizes for cost and capability at the same time. It hits 50.0% on FrontierCode 1.1 Main, within a point of Fable 5.1 at 64% less, and lands within a few points of GPT-6 Astra at a quarter of the cost. Compared to SWE-1.7 it takes 58% fewer turns and costs 81% less while scoring higher. Available now in Devin Desktop and CLI.

Why we selected it

A technically specific coding-model release that targets both capability and operating cost, available in desktop and CLI workflows.

Best for
Cost-conscious AI coding teams
Category
Coding
Daily picks
1
First selected
2026-09-13
Cognition's SWE-2 product preview

Product preview saved with our daily selection

Capability scan

What it can help with.

Only capabilities supported by the product information we collected are listed here.

01

Support coding tasks

SWE-2 is Cognition’s coding model.

02

Use post-training optimized for cost and capability

The model is post-trained from Kimi K3 with reinforcement learning intended to optimize cost and capability together.

03

Operate in Devin workflows

SWE-2 is available in Devin Desktop and CLI.

04

Reduce turns versus SWE-1.7

The description reports that SWE-2 takes 58% fewer turns than SWE-1.7 while scoring higher.

Best-fit use cases

Use a coding model in Devin Desktop.
Run coding-model workflows through the Devin CLI.
Evaluate a coding model when operating cost and task-turn count are important considerations.
Compare SWE-2’s reported FrontierCode 1.1 Main result with the named alternative models.

FAQ

Before you open it.

What is SWE-2?

SWE-2 is Cognition’s coding model, post-trained from Kimi K3 with reinforcement learning.

Where is SWE-2 available?

It is available in Devin Desktop and CLI.

What benchmark result is reported for SWE-2?

The description reports a 50.0% result on FrontierCode 1.1 Main.

How does SWE-2 compare with SWE-1.7?

The description reports 58% fewer turns, 81% lower cost, and a higher score than SWE-1.7.

What cost comparisons are stated for SWE-2?

The description states that SWE-2 is 64% less expensive than Fable 5.1 and costs one quarter as much as GPT-6 Astra.