Brain

Brain turns a Mixture-of-Models into one unified OpenAI-compatible model API with system intelligence.

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Simulation: BOOTING Yield: 0.0000

Run Brain as rupta/cloud rupta/enterprise rupta/edge

What is Brain?

One model interface for Mixture-of-Models.

Five Brain models map product preference to the right model mixture.

Brain routes requests across closed, open, and self-hosted model pools through vLLM Semantic Router — Brain routes across open, closed, private, local, and cloud models through the open-source vLLM Semantic Router substrate.

One API for heterogeneous models

Closed, open, private, local, and cloud fleets behind one integration.

Preference-driven selection

Cost, accuracy, safety, hallucination, privacy, latency, and modality become routing signals.

Routing belongs in infrastructure

Model choice, fallback, escalation, and policy run below application code.

How to Use

Five Brain models. Five product preferences.

Pick the model that matches the user preference; Brain selects the mixture underneath.

Balance

rupta/brain-v1-flash

Balanced latency and cost for everyday AI products, agents, search, and coding.

Accuracy

rupta/brain-v1-ultra

Accuracy-first model for hard reasoning, research, and code review.

Security

rupta/brain-v1-secu

Safety-first model for policy-gated, privacy-sensitive, and adversarial workloads.

Hallucination

rupta/brain-v1-halu

Hallucination-sensitive model for grounded, retrieval-heavy, high-trust answers.

Omni

rupta/brain-v1-omni

Omni-modal model for multimodal understanding and text generation.

Tech Behind

Built on open-source vLLM Semantic Router.

Open-source routing infrastructure behind Brain.

Website GitHub

4.8K+ GitHub stars 135+ Contributors 1.6K+ Commits 300K+ HF model downloads

Meta Model

“Think of it as a meta model, right? That’s the most important thing.”

Morgan Stanley TMT Conference 2026

Open-Source Routers

“The future is multi-models and you’ll want to customize your router.”

Public post on open-source router systems

Hybrid Enterprise AI

Cost, privacy, and policy control for enterprise AI.

Technically Speaking with Chris Wright

Smart Router

Smart Router makes model selection a system-level primitive.

NVIDIA Live at CES 2026

Built with

Across chips, cloud, AI infra, research, and enterprise.

Meta

Red Hat

Microsoft

Google

NVIDIA

Hugging Face

Nutanix

Model Capability

Mixture-of-Models can beat frontier models.

Heterogeneous routed systems can outperform single closed-model baselines.

Early result scorecard comparing VSR with Fugu and frontier models — Early scorecard: VSR leads LiveCodeBench and GPQA-D against Fugu and Fugu Ultra.

Router Capability

Routing quality is measurable.

RouterArena shows VSR beating both open-source and commercial router systems.

RouterArena leaderboard screenshot showing vLLM Semantic Router — RouterArena snapshot: vLLM Semantic Router ranked at the top of the public routing leaderboard.

One Brain. Three locations.

rupta.ai Cloud

Hosted Brain, one API key.

Developers and SMBs get preference-aware model mixtures without building routing logic.

rupta.ai Enterprise

Hybrid Brain for your fleet.

Self-hosted models plus external models, with energy-aware routing and customized enterprise mixture-of-models.

rupta.ai Edge

Privacy-first Edge Brain.

Local small models stay close to data; stronger cloud models join only when the task requires it.