Beam

Beam

Reflection
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+

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About

Beam is Reflection’s first open-weight model, a sparse Mixture-of-Experts model with 501 billion total parameters and 23 billion active parameters, built for coding, reasoning, and agentic workloads. Its capabilities come from large-scale pretraining and reinforcement learning, including training on 23.8 trillion diverse, curated, high-quality tokens from the web, public sources, and proprietary licensed datasets. Beam was trained with a particular focus on coding and agentic performance and is designed to deliver competitive open-weight capabilities with efficient inference compute. It supports complex software engineering, terminal, STEM, web search, tool-use, and general knowledge tasks, with reinforcement learning designed to improve multi-step reasoning, tool use, and adaptation to environment feedback. Users can control the tradeoff between performance and token usage through a reasoning effort parameter.

About

DeepSeek-V4.1-Flash is a fast, versatile AI model designed for demanding coding, agentic, creative, and spatial reasoning workloads. Building on DeepSeek-V4-Flash, it emphasizes high-speed generation while maintaining strong performance on complex tasks, reaching more than 400 tokens per second and peaking at around 427 tokens per second in reported tests. The model can tackle advanced programming challenges, generate interactive 3D environments, create voxel-based designs, and reason about spatially complex scenes and simulations. Demonstrations include Minecraft-style worlds, classical Chinese gardens, racing environments, dungeon navigation, exploded camera views, and other applications requiring both code generation and an understanding of spatial relationships. Its capabilities make it suitable for rapid prototyping, game development, 3D workflows, architecture, research, and other technical or creative projects where iteration speed matters.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Developers, AI researchers, and engineering teams requiring a tool to run coding, reasoning, tool-use, and agentic workloads with an efficient open-weight language model

Audience

Developers, AI engineers, researchers, creators, and professionals wanting a high-speed model for coding, agentic workflows, spatial reasoning, simulations, and interactive content generation

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5

Pros & Cons from Real Users

Pros

  • The appeal is obvious for developers: fast generation, lower cost, and enough capability to handle real coding-agent tasks instead of only lightweight chat. If V4.1 Flash really improves speed and cost while keeping or beating V4-Pro-level performance, it could be one of the best everyday models for repo work, debugging, automation, and AI coding tools.

Cons

  • No cons to speak of as of yet. Super close to frontier at cheap prices

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Reflection
United States
reflection.ai/blog/introducing-beam

Company Information

DeepSeek
Founded: 2023
China
deepseek.com

Alternatives

GLM-5.3

GLM-5.3

Z.ai

Alternatives

Kimi K3

Kimi K3

Moonshot AI
Qwen3.8-Max

Qwen3.8-Max

Alibaba
Inkling

Inkling

Thinking Machines Lab
DeepSeek-V4

DeepSeek-V4

DeepSeek
Qwen3.5

Qwen3.5

Alibaba

Categories

AI Models Supported

Categories

AI Coding Models Supported
AI Models Supported

Integrations

Buda Not Supported
Cheaper Inference Not Supported
Cline Not Supported
ClinePass Not Supported
DeepSeek Not Supported
DeepSeek Harness Not Supported
DeepSeek-V4 Not Supported
Novita AI Not Supported
OpenClaw Not Supported
OpenTag Not Supported
Oxlo.ai Not Supported
Reasonix Not Supported
SnapVee Studio Not Supported
Together AI Not Supported
Vercel AI Gateway Not Supported
ZooClaw Not Supported

Integrations

Buda Supported
Cheaper Inference Supported
Cline Supported
ClinePass Supported
DeepSeek Supported
DeepSeek Harness Supported
DeepSeek-V4 Supported
Novita AI Supported
OpenClaw Supported
OpenTag Supported
Oxlo.ai Supported
Reasonix Supported
SnapVee Studio Supported
Together AI Supported
Vercel AI Gateway Supported
ZooClaw Supported
Claim Beam and update features and information
Claim Beam and update features and information
Claim DeepSeek-V4.1-Flash and update features and information
Claim DeepSeek-V4.1-Flash and update features and information