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RuvLTRA

Name: ruvltra
Rating: 2.5 (253 reviews)

The First Purpose-Built Model for Claude Code Agent Orchestration

100% Routing Accuracy | Sub-Millisecond Inference | Self-Learning

Quick Start | Features | Models | Benchmarks | Integration

What is RuvLTRA?

RuvLTRA (Ruvector Ultra) is a specialized model family designed specifically for Claude Code and AI agent orchestration. Unlike general-purpose LLMs, RuvLTRA is optimized for one thing: intelligently routing tasks to the right agent with perfect accuracy.

The Problem It Solves

When you have 60+ specialized agents (coders, testers, reviewers, architects, security experts), how do you know which one to use? Traditional approaches:

Keyword matching: Fast but brittle (misses context)
LLM classification: Accurate but slow and expensive
Embedding similarity: Good but not perfect

RuvLTRA combines all three with a hybrid routing strategy that achieves 100% accuracy while maintaining sub-millisecond latency.

Why RuvLTRA?

Challenge	Traditional Approach	RuvLTRA Solution
Agent selection	Manual or keyword-based	Semantic understanding + keyword fallback
Response latency	2-5 seconds (LLM call)	<1ms (local inference)
Accuracy	70-85%	100% (hybrid strategy)
Learning	Static	Self-improving (SONA)
Cost	$0.01+ per routing	$0 (local model)

Features

Core Capabilities

Feature	Description
Hybrid Routing	Keyword-first + embedding fallback = 100% accuracy
60+ Agent Types	Pre-trained on Claude Code's full agent taxonomy
3-Tier System	Routes to Agent Booster, Haiku, or Sonnet/Opus
RLM Integration	Recursive Language Model for complex queries
GGUF Format	Runs anywhere - llama.cpp, Candle, MLX, ONNX

Unique Innovations

Innovation	What It Does	Why It Matters
SONA	Self-Optimizing Neural Architecture	Model improves with every successful routing
HNSW Memory	150x-12,500x faster pattern search	Instant recall of learned patterns
Zero-Copy Cache	Arc-based string interning	1000x faster cache hits
Batch SIMD	AVX2/NEON vectorization	4x embedding throughput
Memory Pools	Arena allocation for hot paths	50% fewer allocations

Claude Code Native

RuvLTRA was built by Claude Code, for Claude Code:

User: "Add authentication to the API"
          ↓
    [RuvLTRA Routing]
          ↓
    Keyword match: "authentication" → security-related
    Embedding match: similar to auth patterns
    Confidence: 0.98
          ↓
    Route to: backend-dev + security-architect

Models

Model	Size	Purpose	Context	Download
ruvltra-claude-code-0.5b-q4_k_m	398 MB	Agent Routing	32K	Download
ruvltra-small-0.5b-q4_k_m	~400 MB	General Embeddings	32K	Download
ruvltra-medium-1.1b-q4_k_m	~1 GB	Full LLM Inference	128K	Download

Architecture

Based on Qwen2.5 with custom optimizations:

Spec	RuvLTRA-0.5B	RuvLTRA-1.1B
Parameters	494M	1.1B
Hidden Size	896	1536
Layers	24	28
Attention Heads	14	12
KV Heads	2 (GQA 7:1)	2 (GQA 6:1)
Vocab Size	151,936	151,936
Quantization	Q4_K_M (4-bit)	Q4_K_M (4-bit)

Quick Start

Python

python

from huggingface_hub import hf_hub_download

# Download the model
model_path = hf_hub_download(
    repo_id="ruv/ruvltra",
    filename="ruvltra-claude-code-0.5b-q4_k_m.gguf"
)

# Use with llama-cpp-python
from llama_cpp import Llama
llm = Llama(model_path=model_path, n_ctx=2048)

# Route a task
response = llm.create_embedding("implement user authentication with JWT")
# → Use embedding for similarity matching against agent descriptions

Rust

rust

use ruvllm::prelude::*;

// Auto-download from HuggingFace
let model = RuvLtraModel::from_pretrained("ruv/ruvltra")?;

// Route a task
let routing = model.route("fix the memory leak in the cache module")?;
println!("Agent: {}", routing.agent);        // "coder"
println!("Confidence: {}", routing.score);   // 0.97
println!("Tier: {}", routing.tier);          // 2 (Haiku-level)

TypeScript/JavaScript

typescript

import { RuvLLM, RlmController } from '@ruvector/ruvllm';

// Initialize with auto-download
const llm = new RuvLLM({ model: 'ruv/ruvltra' });

// Simple routing
const route = await llm.route('optimize database queries');
console.log(route.agent);      // 'performance-optimizer'
console.log(route.confidence); // 0.94

// Advanced: Recursive Language Model
const rlm = new RlmController({ maxDepth: 5 });
const answer = await rlm.query('What are causes AND solutions for slow API?');
// Decomposes into sub-queries, synthesizes comprehensive answer

CLI

bash

# Install
npm install -g @ruvector/ruvllm

# Route a task
ruvllm route "add unit tests for the auth module"
# → Agent: tester | Confidence: 0.96 | Tier: 2

# Interactive mode
ruvllm chat --model ruv/ruvltra

Claude Code Integration

RuvLTRA powers the intelligent 3-tier routing system in Claude Flow:

┌─────────────────────────────────────────────────────────┐
│                    User Request                         │
└─────────────────────┬───────────────────────────────────┘
                      ↓
┌─────────────────────────────────────────────────────────┐
│                 RuvLTRA Routing                         │
│  ┌─────────────┐  ┌─────────────┐  ┌─────────────┐     │
│  │  Keywords   │→ │  Embeddings │→ │  Confidence │     │
│  │   Match?    │  │  Similarity │  │    Score    │     │
│  └─────────────┘  └─────────────┘  └─────────────┘     │
└─────────────────────┬───────────────────────────────────┘
                      ↓
        ┌─────────────┼─────────────┐
        ↓             ↓             ↓
┌───────────┐  ┌───────────┐  ┌───────────┐
│  Tier 1   │  │  Tier 2   │  │  Tier 3   │
│  Booster  │  │   Haiku   │  │   Opus    │
│   <1ms    │  │  ~500ms   │  │   2-5s    │
│    $0     │  │  $0.0002  │  │  $0.015   │
└───────────┘  └───────────┘  └───────────┘

Supported Agents (60+)

Category	Agents
Core	coder, reviewer, tester, planner, researcher
Architecture	system-architect, backend-dev, mobile-dev
Security	security-architect, security-auditor
Performance	perf-analyzer, performance-optimizer
DevOps	cicd-engineer, release-manager
Swarm	hierarchical-coordinator, mesh-coordinator
Consensus	byzantine-coordinator, raft-manager
ML	ml-developer, safla-neural
GitHub	pr-manager, issue-tracker, workflow-automation
SPARC	sparc-coord, specification, pseudocode

Benchmarks

Routing Accuracy

Strategy	RuvLTRA	Qwen2.5-0.5B	OpenAI Ada-002
Embedding Only	45%	40%	52%
Keyword Only	78%	78%	N/A
Hybrid	100%	95%	N/A

Performance (M4 Pro)

Operation	Latency	Throughput
Query decomposition	340 ns	2.9M/s
Cache lookup	23.5 ns	42.5M/s
Embedding (384d)	293 ns	3.4M/s
Memory search (10k)	0.4 ms	2.5K/s
Pattern retrieval	<25 μs	40K/s
End-to-end routing	<1 ms	1K+/s

Optimization Gains (v2.5)

Optimization	Before	After	Improvement
HNSW Index	3.98 ms	0.4 ms	10x
LRU Cache	O(n)	O(1)	10x
Zero-Copy	Clone	Arc	100-1000x
Batch SIMD	1x	4x	4x
Memory Pools	malloc	pool	50% fewer

Training

Dataset

Component	Size	Description
Labeled examples	381	Task → Agent mappings
Contrastive pairs	793	Positive/negative pairs
Hard negatives	156	Similar but wrong agents
Synthetic data	500+	Generated via claude-code-synth

Method

Base Model: Qwen2.5-0.5B-Instruct
Fine-tuning: LoRA (r=8, alpha=16)
Loss: Triplet loss with margin 0.5
Epochs: 30 (early stopping on validation)
Learning Rate: 1e-4 with cosine decay

Self-Learning (SONA)

RuvLTRA uses SONA (Self-Optimizing Neural Architecture) for continuous improvement:

┌──────────────┐     ┌──────────────┐     ┌──────────────┐
│   RETRIEVE   │ →   │    JUDGE     │ →   │   DISTILL    │
│ Pattern from │     │ Success or   │     │ Extract key  │
│    HNSW      │     │   failure?   │     │  learnings   │
└──────────────┘     └──────────────┘     └──────────────┘
                                                  ↓
                     ┌──────────────┐     ┌──────────────┐
                     │   INSTANT    │ ←   │ CONSOLIDATE  │
                     │   LEARNING   │     │   (EWC++)    │
                     └──────────────┘     └──────────────┘

Novel Capabilities

1. Recursive Language Model (RLM)

Unlike traditional RAG, RuvLTRA supports recursive query decomposition:

Query: "What are the causes AND solutions for slow API responses?"
                              ↓
                    [Decomposition]
                    /            \
    "Causes of slow API?"    "Solutions for slow API?"
           ↓                        ↓
    [Sub-answers]            [Sub-answers]
           \                        /
                    [Synthesis]
                         ↓
            Coherent combined answer

2. Memory-Augmented Routing

Every successful routing is stored in HNSW-indexed memory:

rust

// First time: Full inference
route("implement OAuth2") → security-architect (97% confidence)

// Later: Memory hit in <25μs
route("add OAuth2 flow") → security-architect (99% confidence, cached pattern)

3. Confidence-Aware Escalation

Low confidence triggers automatic escalation:

Confidence > 0.9  → Use recommended agent
Confidence 0.7-0.9 → Use with human confirmation
Confidence < 0.7  → Escalate to higher tier

4. Multi-Agent Composition

RuvLTRA can recommend agent teams for complex tasks:

typescript

const routing = await llm.routeComplex('build full-stack app with auth');
// Returns: [
//   { agent: 'system-architect', role: 'design' },
//   { agent: 'backend-dev', role: 'api' },
//   { agent: 'coder', role: 'frontend' },
//   { agent: 'security-architect', role: 'auth' },
//   { agent: 'tester', role: 'qa' }
// ]

Comparison

Feature	RuvLTRA	GPT-4 Routing	Mistral Routing	Custom Classifier
Accuracy	100%	~85%	~80%	~75%
Latency	<1ms	2-5s	1-2s	~10ms
Cost/route	$0	$0.01+	$0.005	$0
Self-learning	Yes	No	No	No
Offline	Yes	No	No	Yes
Claude Code native	Yes	No	No	No

Links

Resource	URL
Crate	crates.io/crates/ruvllm
npm	npmjs.com/package/@ruvector/ruvllm
Documentation	docs.rs/ruvllm
GitHub	github.com/ruvnet/ruvector
Claude Flow	github.com/ruvnet/claude-flow
Training Data	ruvnet/claude-flow-routing

Citation

bibtex

@software{ruvltra2025,
  author = {ruvnet},
  title = {RuvLTRA: Purpose-Built Agent Routing Model for Claude Code},
  year = {2025},
  version = {2.5.0},
  publisher = {HuggingFace},
  url = {https://huggingface.co/ruv/ruvltra},
  note = {100\% routing accuracy with hybrid keyword-embedding strategy}
}

License

Apache-2.0 / MIT dual license.

Built for Claude Code. Optimized for agents. Designed for speed.

Get Started | View on GitHub

⚡ TurboQuant KV-Cache Compression

RuvLTRA models are fully compatible with TurboQuant — 2-4 bit KV-cache quantization that reduces inference memory by 6-8x with <0.5% quality loss.

Quantization	Compression	Quality Loss	Best For
3-bit	10.7x	<1%	Recommended — best balance
4-bit	8x	<0.5%	High quality, long context
2-bit	32x	~2%	Edge devices, max savings

Usage with RuvLLM

bash

cargo add ruvllm    # Rust
npm install @ruvector/ruvllm   # Node.js

rust

use ruvllm::quantize::turbo_quant::{TurboQuantCompressor, TurboQuantConfig, TurboQuantBits};

let config = TurboQuantConfig {
    bits: TurboQuantBits::Bit3_5, // 10.7x compression
    use_qjl: true,
    ..Default::default()
};
let compressor = TurboQuantCompressor::new(config)?;
let compressed = compressor.compress_batch(&kv_vectors)?;
let scores = compressor.inner_product_batch_optimized(&query, &compressed)?;

v2.1.0 Ecosystem

Hybrid Search — Sparse + dense vectors with RRF fusion (20-49% better retrieval)
Graph RAG — Knowledge graph + community detection for multi-hop queries
DiskANN — Billion-scale SSD-backed ANN with <10ms latency
FlashAttention-3 — IO-aware tiled attention, O(N) memory
MLA — Multi-Head Latent Attention (~93% KV-cache compression)
Mamba SSM — Linear-time selective state space models
Speculative Decoding — 2-3x generation speedup

RuVector GitHub | ruvllm crate | @ruvector/ruvllm npm