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Description

Lumen Outpost represents Cosine’s refined post-trained coding model, evaluated against its foundational model Kimi K2.6, along with GPT-5.5, GPT-5.4, and Gemini 3.1 Pro, specifically focusing on intricate, long-term coding assignments across 13 different programming languages. This model is designed not only for precision in coding but also to enhance key behavioral indicators vital in engineering processes, such as agent initiative, strategic planning, scope management, action coherence, succinct updates, and effective communication. According to Cosine’s benchmark analysis, the specialized post-training significantly elevated the base model's performance, with Lumen Outpost surpassing Kimi K2.6 in tests like Niche-Bench, Slop-Bench, Vibe-Bench, as well as in terms of cost efficiency for successful task completion. In the Niche-Bench assessment, which evaluates niche, legacy, and environmentally constrained programming languages, Lumen Outpost attained a score of 53.9% and excelled or equaled performance in 9 out of the 13 languages evaluated, demonstrating marked improvements particularly in Fortran, ABAP, Java, and Rust. The impressive results symbolize a significant leap in the practical application of coding models in real-world scenarios, underscoring the effectiveness of targeted training methodologies.

Description

Qwen3-Coder is an advanced code model that comes in various sizes, prominently featuring the 480B-parameter Mixture-of-Experts version (with 35B active) that inherently accommodates 256K-token contexts, which can be extended to 1M, and demonstrates cutting-edge performance in Agentic Coding, Browser-Use, and Tool-Use activities, rivaling Claude Sonnet 4. With a pre-training phase utilizing 7.5 trillion tokens (70% of which are code) and synthetic data refined through Qwen2.5-Coder, it enhances both coding skills and general capabilities, while its post-training phase leverages extensive execution-driven reinforcement learning across 20,000 parallel environments to excel in multi-turn software engineering challenges like SWE-Bench Verified without the need for test-time scaling. Additionally, the open-source Qwen Code CLI, derived from Gemini Code, allows for the deployment of Qwen3-Coder in agentic workflows through tailored prompts and function calling protocols, facilitating smooth integration with platforms such as Node.js and OpenAI SDKs. This combination of robust features and flexible accessibility positions Qwen3-Coder as an essential tool for developers seeking to optimize their coding tasks and workflows.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

ABAP Yes 
Claude Mythos 5 No 
Claude Mythos 5.1 No 
Claude Opus 4.1 No 
Claude Opus 4.6 No 
Claude Opus 4.7 No 
Claude Opus 4.8 No 
Claude Opus 5 No 
Claude Sonnet 4 No 
Claude Sonnet 4.5 No 
Claude Sonnet 4.6 No 
Claude Sonnet 5.5 No 
Node.js No 
OpenSpec No 
Qwen2.5 No 
Qwen3.8-27B No 
Qwen3.8-Omni-Flash No 
Rust Yes 
Step 5 Preview No 
SuperBased No 

Integrations

ABAP No 
Claude Mythos 5 Yes 
Claude Mythos 5.1 Yes 
Claude Opus 4.1 Yes 
Claude Opus 4.6 Yes 
Claude Opus 4.7 Yes 
Claude Opus 4.8 Yes 
Claude Opus 5 Yes 
Claude Sonnet 4 Yes 
Claude Sonnet 4.5 Yes 
Claude Sonnet 4.6 Yes 
Claude Sonnet 5.5 Yes 
Node.js Yes 
OpenSpec Yes 
Qwen2.5 Yes 
Qwen3.8-27B Yes 
Qwen3.8-Omni-Flash Yes 
Rust No 
Step 5 Preview Yes 
SuperBased Yes 

Pricing Details

$20 per month
Free Trial No 
Free Version No 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) Yes 
In Person No 

Vendor Details

Company Name

Cosine

Country

United Kingdom

Website

cosine.sh/blog/lumen-outpost-benchmark-report

Vendor Details

Company Name

Qwen

Founded

2023

Country

China

Website

github.com/QwenLM/qwen-code

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