---
title: 'In the News: September 10, 2026 (Extra 4)'
description: "On Cognition's benchmark, SWE-2 scores within one point of Anthropic's Fable 5.1 at 64 percent lower cost and reaches its first code edit in fewer than half the steps of SWE-1.7."
canonical_url: 'https://darkfactory.dev/news/2026-09-10-extra-4'
markdown_url: 'https://darkfactory.dev/news/2026-09-10-extra-4.md'
collection: news
date_published: '2026-09-10T23:12:00-04:00'
date_modified: '2026-09-10T23:12:00-04:00'
---

# In the News: September 10, 2026 (Extra 4)


On Cognition's FrontierCode benchmark, SWE-2 scores within one point of Anthropic's Fable 5.1 at 64 percent lower cost. At medium effort, it reaches its first code edit after a median of 18 steps, compared with 48 for SWE-1.7.

## 1. SWE-2 scores within one point of Fable 5.1 on Cognition's benchmark

**[Introducing SWE-2: Pushing the Pareto Frontier](https://cognition.com/blog/swe-2)** · The Cognition Team · Cognition, September 10, 2026

Cognition released SWE-2, a coding model post-trained from Moonshot's 2.8-trillion-parameter Kimi K3. On the company's FrontierCode 1.1 Main benchmark, SWE-2 scores 50.0 percent. Anthropic's Fable 5.1 scores 50.9 percent, while SWE-2 costs 64 percent less per task.

Cognition credits a reinforcement learning method that trains the medium, high, and max effort levels in one run instead of using separate models. At medium effort, SWE-2 beats SWE-1.7's score on the same benchmark while taking 58 percent fewer turns and costing 81 percent less on average. It reaches its first real code edit after a median of 18 steps, compared with 48 for SWE-1.7.

SWE-2 is available today in Devin Desktop and Devin CLI, with Devin Web and Fusion rolling out. Cognition has not published a standalone API, pricing, or open weights.

**Why it matters:** Teams comparing their own harness with Devin now have vendor-reported cost and turn-count figures for the model behind Devin's latest release. Cognition measured the accuracy and cost numbers on its own benchmark, so an independent test still needs to confirm the comparison.