code
SWE-2
Cognition's Devin coding model, post-trained from Kimi K3.
Levelmodel
Classcode
Parametersnot in the notes
Contextnot in the notes
Released10 Sep 2026
Opennessproprietary
Runs onnot in the notes
Statusactive
Benchmark Results
vendor-reported
DeepSWE v1.1coding
vendor-reported
73
050100
Score in %. Higher is better.
FrontierCode v1.1coding
vendor-reported
50
050100
Score in %. Higher is better.
Terminal-Bench 2.1agents and tool use
vendor-reported
92.8
050100
Score in %. Higher is better.
Terminal-Bench 4.0agents and tool use
vendor-reported
27.3
050100
Score in %. Higher is better.
Where this comes from
Every score names who ran it: vendor-reported, maintainer-run or independent. A rank is shown with the population it was ranked in (gap rule 3).
Lineage
successorfinetune
Where this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 5 models. Confidence and evidence are the notes' own.
Identity
- Developer
- Cognition (owns Windsurf)
- Family
- SWE (Devin)
- Released
- 10 Sep 2026 sourcessecondary report
- Weights published
- –
- Record checked
- 10 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.
Architecture and Size
- Architecture
- not in the notes
- Total parameters
- – sources
- Active parameters
- –
- Checkpoint parameters
- –
- Note
- Not published; base model 2.8T (Kimi K3), base context 1M
- Context length
- not in the notes
- Input
- text
- Output
- text
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).
Openness and Access
- Openness
- proprietary
- Licence
- Proprietary sources
- Access routes
- consumer app
Where this comes from
The licence file governs over registry tags and aggregator labels.
Deployment
- Runs on
- not in the notes
- Footprint
- Devin Desktop/CLI only; no API, no weights.
- Runtimes
- not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.
Indonesia
- Indonesian support
- not stated
- Regional languages
- not in the notes
- Jakarta hosting
- unknown
- Languages
- not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.
Industry Use Cases
No industry use case links this model.
Links
ModelSWE-2Cognition (owns Windsurf), code
SWE-2Cognition (owns Windsurf), codeUse Casesnone recorded
Who Runs Itnone recorded
Models 3
Organisations 1
Sources
- Cognition SWE-2 : Modèle, Harnais et les chiffres qui se cachent derrière orcarouter.ai https://www.orcarouter.ai/fr/blog/swe-2
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "SWE-2", https://aurion.semai.id/models/cognition-swe-2/, records of October 2026.