latent-gate
Allows sending locally compressed queries to Google's Gemini models via the Google API.
Uses local Ollama models for free vision and text compression, and can also serve as a local inference provider to avoid cloud token costs.
Allows sending locally compressed image and text queries to OpenAI models, reducing token usage and cost.
Enables the Zed editor to use LatentGate's optimization tools via MCP, reducing token usage when working with files and prompts.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@latent-gateCompress this 400-line error log and summarize the root cause"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
LatentGate
Process Locally. Send Smart. Pay Less.
A VL-JEPA-inspired pipeline that compresses images, text, conversations, and RAG documents locally via Ollama, then sends only compact payloads to any LLM API — every saving measured with a real tokenizer and checked for lost facts.
Use in Claude | Quick Start | Python API | REST API | Monitoring | Load Testing | Deployment | AI Tools | Benchmarks | Contributing
The Problem
Every time you send an image or long prompt to GPT-4o / Claude / Gemini, you burn 1,000+ tokens on processing that could happen locally for free.
Traditional: Image -> Cloud LLM (1,200 tokens) -> Answer
LatentGate: Image -> Local Ollama (FREE) -> Cloud LLM (200 tokens) -> AnswerRelated MCP server: winnow
Features
Feature | Description |
Local-First | Vision and text compression runs on Ollama (free, no API key needed) |
Token Optimizer | Deterministic, fact-preserving compression: 66% fewer tokens on a realistic dev corpus in ~1ms (benchmark) |
MCP Server | Works with Claude Desktop, Cursor, Cline, Continue, Zed |
Selective Decoding | For video, only call API when scene changes (~2.85x fewer calls) with cosine similarity |
Text Compression | Long prompts, conversations, RAG docs compressed locally |
Speed Optimized | Connection pooling, model preloading, parallel processing |
Multi-Provider | OpenAI, Anthropic, Google, Groq, DeepSeek, Together, Azure, AWS Bedrock, Ollama, or any OpenAI-compatible endpoint |
REST API | FastAPI server for web application integration |
Video Processing | Direct video file input with automatic frame extraction |
Cost Tracking | Persistent cost tracking with SQLite analytics and exportable reports |
Async Support | Non-blocking async methods for FastAPI, aiohttp, etc. |
Streaming Responses | Stream responses from remote LLMs |
Config Persistence | YAML/TOML config files with environment variable overrides |
Structured Logging | JSON-formatted logging with rotation and correlation IDs |
Docker Support | Dockerfile and docker-compose for easy deployment |
Plugin System | Custom processors for domain-specific compression |
Multi-Language | Support for 30+ languages with automatic detection |
Use it in Claude
LatentGate plugs into Claude as an MCP server. Its optimizer tools work offline, with no Ollama and no API key — Claude reads big logs, JSON dumps and docs through it and spends a fraction of the context. A 400-line error log goes from 14,400 to ~100 tokens.
Requires uv (uvx fetches LatentGate from PyPI on first run).
The first run downloads dependencies, which can exceed Claude's 30-second MCP startup limit
on a slow connection; run this once beforehand (later starts take ~2s):
uvx --from "latent-gate[mcp,tokens]" latent-gate --optimizer-benchmarkClaude Code — plugin (MCP server + a skill that tells Claude when to use it):
/plugin marketplace add KathanModh259/latent-gate
/plugin install latent-gate@latent-gateClaude Code — MCP server only:
claude mcp add latent-gate -- uvx --from "latent-gate[mcp,tokens]" latent-gate-mcpClaude Desktop — add to claude_desktop_config.json and restart:
{
"mcpServers": {
"latent-gate": {
"command": "uvx",
"args": ["--from", "latent-gate[mcp,tokens]", "latent-gate-mcp"]
}
}
}Then just ask: "Read logs/app.log with latent-gate and tell me why orders fail."
Tool | Needs Ollama | What it does |
| no | Read a text file and return its optimized form (use for files you read, not files you edit) |
| no | Optimize text you already have, optionally toward a |
| no | Count tokens (tiktoken |
| yes | Describe an image locally as a ~150-token scene payload |
| yes | Optimizer + fact-checked local-LLM compression |
| yes | Session statistics |
Quick Start
Install
# Core install
pip install latent-gate
# With MCP server (for Claude Desktop, Cursor, Cline, etc.)
pip install latent-gate[mcp]
# With API server (for web applications)
pip install latent-gate[api]
# With video processing
pip install latent-gate[video]
# With embedding-based similarity (more accurate selective decoding)
pip install latent-gate[embeddings]
# With LangChain integration
pip install latent-gate[langchain]
# With AWS Bedrock support
pip install latent-gate[bedrock]
# Exact token counts via tiktoken (otherwise a calibrated ~6%-error estimate)
pip install latent-gate[tokens]
# With all features
pip install latent-gate[all]Pull Ollama Models
ollama pull llava:7b # Vision model (required for image queries)
ollama pull llama3:8b # Text model (required for text compression & prediction)One-Command Quickstart
chmod +x scripts/quickstart.sh
./scripts/quickstart.shThis starts everything: Ollama → pulls models → API server → website. See scripts/quickstart.sh for options like --no-pull, --no-website, --port 9000.
CLI Usage
# Image query
latent-gate photo.jpg "What is in this image?" --provider ollama -v
# Text compression
latent-gate --text "Your long prompt here..." --provider ollama -v
# Text from file
latent-gate --text-file prompt.txt --provider openai -v
# Image + Text combined
latent-gate photo.jpg "Analyze" --text "Extra context..." -v
# Full JSON output
latent-gate photo.jpg "Describe" --json -v
# Compress only, deterministically (no LLM call, ~1ms, reproducible)
cat prompt.txt | latent-gate --text-file - --compress-only --deterministic --level balanced
# Reproduce the token-savings benchmark (no Ollama needed)
latent-gate --optimizer-benchmark
# Production benchmark
latent-gate --benchmark --benchmark-output reports/benchmark.json
# Start API server (requires: pip install latent-gate[api])
latent-gate-apiProduction Hardening
For API deployments, restrict direct image-path reads to trusted directories:
set LATENTGATE_ALLOWED_IMAGE_ROOTS=C:\safe-images;D:\datasets
latent-gate-apiBenchmark before releases so speed and savings are measured, not guessed:
latent-gate --benchmark --jsonPython API
Image Query
from latent_gate import LatentGatePipeline, PipelineConfig
config = PipelineConfig(
vision_model="llava:7b",
predictor_model="llama3:8b",
remote_provider="openai",
remote_model="gpt-4o-mini",
)
with LatentGatePipeline(config) as pipeline:
result = pipeline.query("photo.jpg", "What is in this image?")
print(result["answer"])
print(f"Tokens sent: ~{result['tokens_estimated']}")
print(f"Timing: {result['timing']}")Text Compression
# Long prompt compression
result = pipeline.query_text("Your 500-word prompt here...", mode="auto")
# Conversation history compression
messages = [
{"role": "user", "content": "Help me with Kubernetes setup"},
{"role": "assistant", "content": "Sure! What's your target configuration?"},
{"role": "user", "content": "3 nodes, t3.large, us-east-1 with autoscaling"},
]
result = pipeline.query_conversation(messages, "Now give me the setup commands")
# RAG document compression
documents = ["doc1 text...", "doc2 text...", "doc3 text..."]
result = pipeline.query_documents(documents, "How do I implement JWT refresh?")
# Universal (auto-detect input type)
result = pipeline.query_universal(text="Explain this code...", image="screenshot.png")Batch Processing
# Sequential with selective decoding (skips redundant API calls)
results = pipeline.query_batch(image_paths, "Describe each scene")
# Parallel processing
results = pipeline.query_batch(image_paths, "Describe each scene", parallel=True, max_workers=4)
# Text batch
results = pipeline.query_batch_texts(text_list, question="Summarize each")Streaming
# Stream image query
for token in pipeline.query_stream("photo.jpg", "Describe this"):
print(token, end="", flush=True)
# Stream text query
for token in pipeline.query_text_stream("Long prompt...", mode="compress"):
print(token, end="", flush=True)REST API
Start Server
# Default (0.0.0.0:8000)
latent-gate-api
# Custom host/port
# Linux/macOS:
LATENTGATE_HOST=127.0.0.1 LATENTGATE_PORT=9000 latent-gate-api
# Windows PowerShell:
$env:LATENTGATE_HOST="127.0.0.1"; $env:LATENTGATE_PORT="9000"; latent-gate-api
# Windows CMD:
set LATENTGATE_HOST=127.0.0.1 && set LATENTGATE_PORT=9000 && latent-gate-apiEndpoints
Method | Endpoint | Description |
|
| Health check (Ollama connection status) |
|
| Session usage statistics |
|
| Image query |
|
| Text compression |
|
| Conversation compression |
|
| RAG document compression |
|
| Auto-detect input type |
|
| Upload image for query |
Example Requests
import requests
# Image query
response = requests.post("http://localhost:8000/query/image", json={
"image_path": "photo.jpg",
"question": "What is in this image?"
})
# Text query
response = requests.post("http://localhost:8000/query/text", json={
"text": "Your long prompt here...",
"question": "Summarize this",
"mode": "auto" # auto | compress | summarize | condense | code
})
# Health check
response = requests.get("http://localhost:8000/health")
print(response.json()) # {"status": "healthy", "ollama_connected": true, ...}Async Support
import asyncio
from latent_gate import AsyncLatentGatePipeline, PipelineConfig
async def main():
async with AsyncLatentGatePipeline() as pipeline:
# Single queries
result = await pipeline.query("photo.jpg", "What is this?")
result = await pipeline.query_text("Long prompt...")
# Concurrent batch processing
results = await pipeline.query_many_images(
["img1.jpg", "img2.jpg", "img3.jpg"],
"Describe each image",
max_concurrent=3,
)
asyncio.run(main())Video Processing
from latent_gate import LatentGatePipeline, PipelineConfig, VideoProcessor, VideoConfig
config = PipelineConfig(
vision_model="llava:7b",
remote_provider="ollama",
remote_model="llama3:8b",
)
video_config = VideoConfig(
fps=1.0, # Extract 1 frame per second
max_frames=100, # Max frames to process
quality=95, # JPEG quality
resize_width=640, # Resize frames (saves processing time)
)
with VideoProcessor(config, video_config) as processor:
result = processor.process_video("video.mp4", "Describe the action")
print(f"Frames processed: {result['total_frames']}")
print(f"Unique scenes: {result['statistics']['unique_scenes']}")
print(f"Skip rate: {result['statistics']['skip_rate']}")Configuration
Config File
# latentgate.yaml
ollama_base_url: http://localhost:11434
vision_model: llava:7b
predictor_model: llama3:8b
remote_provider: openai
remote_model: gpt-4o-mini
selective_decoding: true
similarity_threshold: 0.85
use_embeddings: true
enable_caching: true
temperature: 0.1
request_timeout: 120
track_costs: true
cost_db_path: "latentgate_costs.db"from latent_gate import get_config, LatentGatePipeline
config = get_config("latentgate.yaml")
with LatentGatePipeline(config) as pipeline:
result = pipeline.query("photo.jpg", "Describe this")Environment Variables
Variable | Description | Default |
| OpenAI API key | - |
| Anthropic API key | - |
| Google API key | - |
| Override remote provider |
|
| Override remote model | provider default (e.g. |
| Override vision model |
|
| Log level |
|
| Log file path | - |
| JSON log format |
|
| Enable cost analytics |
|
| Path to SQLite DB |
|
| Require | unset (open) |
| Token optimizer level: |
|
|
|
|
| Max tokens for a compressed prompt (0 = no budget) |
|
| Max tokens the cloud model may generate per answer |
|
| Warm Ollama models in the background at API startup |
|
| Max concurrent pipeline calls in the API server |
|
| Comma-separated allowed CORS origins |
|
Save Config
from latent_gate import PipelineConfig, save_config
config = PipelineConfig(remote_provider="anthropic", remote_model="claude-sonnet-5")
save_config(config, "my_config.yaml")Docker
# Start full stack (API + Ollama)
docker compose up -d
# Pull models first (one-time setup)
docker compose --profile setup up ollama-init
# Start with monitoring (Prometheus + Grafana)
docker compose --profile monitoring up -d
# Build and run manually
docker build -t latent-gate .
docker run -p 8000:8000 latent-gateThe docker-compose setup includes:
latent-gate API server (port 8000)
Ollama local LLM server (port 11434)
ollama-init container that auto-pulls required models (profile:
setup)Prometheus metrics collector on port 9090 (profile:
monitoring)Grafana dashboard on port 3000 (profile:
monitoring, credentials:admin/latentgate)
Monitoring Stack
Start with monitoring:
docker compose --profile monitoring up -dAccess:
Grafana: http://localhost:3000 (login:
admin/latentgate)Prometheus: http://localhost:9090
Metrics endpoint: http://localhost:8000/metrics
The LatentGate dashboard auto-loads in Grafana with 9 panels covering request rate, latency percentiles (p50/p95/p99), token savings, error rates, pipeline health, and endpoint breakdown.
Customize via environment variables:
GRAFANA_ADMIN— Grafana admin username (default:admin)GRAFANA_PASSWORD— Grafana password (default:latentgate)GRAFANA_ANONYMOUS— Enable anonymous access (default:true)LATENTGATE_ENABLE_METRICS— Enable Prometheus metrics (default:true)
AI Coding Tool Integration (MCP)
LatentGate works as a Model Context Protocol (MCP) server with every major AI coding tool. Your AI assistant automatically compresses images, long prompts, and documents before they reach the cloud model.
Supported Tools
Tool | Status | Setup |
VS Code / Copilot | Supported | |
Claude Desktop | Supported | MCP Config |
Claude Code (CLI) | Supported | Skill |
Cursor | Supported | MCP Config |
Cline (VS Code) | Supported | MCP Config |
Continue.dev | Supported | MCP Config |
Zed Editor | Supported | MCP Config |
VS Code Extension
code --install-extension KathanModh259.latent-gate-vscodeFeatures:
Right-click any image to compress with LatentGate
Select text and press
Ctrl+Shift+Alt+Cto compressCost dashboard in activity bar
Auto-configures MCP for Copilot Chat
Status bar showing token savings
MCP Setup
For Claude, see Use it in Claude. For Cursor, Cline, Continue, Zed and other MCP clients, use the same server command:
{
"mcpServers": {
"latent-gate": {
"command": "uvx",
"args": ["--from", "latent-gate[mcp,tokens]", "latent-gate-mcp"]
}
}
}Or install it into your environment (pip install "latent-gate[mcp,tokens]") and use
"command": "latent-gate-mcp". Note the command is latent-gate-mcp — plain latent-gate
is the CLI and will not speak MCP. The image and compress_* tools additionally need
ollama pull llava:7b and ollama pull phi3:mini.
See integrations/ folder for detailed setup guides per tool.
Speed Optimizations
Optimization | What It Does | Impact |
Connection Pooling | Reuses HTTP connections via | ~30-50% faster per call |
Model Preloading | Warms up Ollama models on init ( | Eliminates 5-15s cold start |
Shorter Prompts | Optimized extraction prompts produce fewer output tokens | ~20% faster generation |
3-Tier JSON Parsing | Fast parse, extract from text, LLM fallback | Avoids slow LLM call 90% of time |
Parallel Processing | Image and text processed simultaneously via ThreadPool | ~40% faster combined queries |
Content-Hash Caching | Disk cache for repeated images | Instant on cache hit |
Selective Decoding | Cosine similarity skips redundant API calls | ~2.85x fewer calls |
Cost Benchmarks
Image Queries (by provider, estimated)
Estimates from each provider's published image-token formulas versus a ~150-token local description.
Provider | Raw Image Tokens | LatentGate Tokens | Savings |
OpenAI GPT-4o (high detail) | ~1,105 | ~150 | ~86% |
Claude 3.5 Sonnet (1MP image) | ~1,334 | ~150 | ~89% |
Gemini 2.0 Flash | ~258 | ~150 | ~42% |
Text: measured, reproducible
Deterministic optimizer on built-in realistic inputs, counted with tiktoken (o200k_base).
Facts kept = share of numbers, identifiers, URLs, file names and code preserved verbatim.
Reproduce with latent-gate --optimizer-benchmark (no Ollama or API key needed).
Input | Tokens |
|
|
|
Pretty-printed API JSON | 1,407 | −33%, facts 100% | −33%, facts 100% | −33%, facts 100% |
60 repeated log lines + trace | 2,235 | 0% | −92% (ranges kept) | −92% |
Prompt pasted 3× | 121 | −61%, facts 100% | −61%, facts 100% | −61%, facts 100% |
Verbose spec with 6 requirements | 127 | 0% | −20%, facts 100% | −51%, facts 90% |
Code review request | 57 | −5% | −16%, facts 100% | −28%, facts 100% |
5 RAG chunks + question | 190 | 0% | −58% (2 relevant docs kept) | −58% |
Total | 4,137 | −13%, facts 100% | −66% | −67% |
Logs lose individual ids/timestamps when folded (the fold keeps first, last and value ranges), and RAG drops facts from documents irrelevant to the question — both by design.
How it works (safest stage first; see latent_gate/optimizer.py):
Protect code blocks, inline code, URLs and quoted strings — restored byte-for-byte
Lossless: whitespace/Unicode cleanup, JSON minification (values untouched), duplicate folding
Log folding: runs of log lines differing only in numbers/ids → first, last, and ranges
Filler: pure pleasantries ("Hi!", "Thanks in advance!") and hedging phrases removed
Selection (only over a budget, or
aggressive): BM25 question-relevance + requirement cues, original order preserved, the user's actual ask is never dropped
Guarantees: output never has more tokens than input; same input → same output (so provider prompt caching keeps working); when a local LLM rewrite is used it must be smaller and keep every fact, otherwise the deterministic result is sent.
from latent_gate import optimize
r = optimize(long_prompt, question="What failed?", level="balanced", max_tokens=2000)
print(r.optimized_tokens, r.savings_pct, r.stages)Video
Selective decoding skips remote calls for frames similar to the previous one (~2.85x fewer calls on typical footage).
At Scale (10,000 image queries with gpt-4o-mini, estimated)
Metric | Traditional | LatentGate | Savings |
Input tokens | 12,000,000 | 2,000,000 | 10M tokens |
Cost | $1.80 | $0.30 | $1.50 (83%) |
Cost Tracking
from latent_gate import CostTracker
tracker = CostTracker()
tracker.record_usage(
query_type="image",
provider="openai",
model="gpt-4o-mini",
input_tokens=150,
output_tokens=200,
tokens_saved=1000,
compression_ratio=6.7,
latency_ms=1500,
)
# Session statistics
stats = tracker.get_session_statistics()
print(f"Total cost: ${stats['total_cost']:.4f}")
print(f"Tokens saved: {stats['total_tokens_saved']}")
# Cost projection
projection = tracker.get_cost_projection(
daily_queries=1000,
provider="openai",
model="gpt-4o-mini"
)
print(f"Monthly savings: ${projection['savings']['monthly']:.2f}")
# Export report
tracker.export_report("usage_report.json", fmt="json")
tracker.export_report("usage_report.csv", fmt="csv")Multi-Language Support
from latent_gate import detect_language, MultiLanguageProcessor
# Detect language
lang = detect_language("Esto es un texto en español")
print(f"Detected: {lang.name} ({lang.confidence:.0%})")
# Process with auto-translation to English
processor = MultiLanguageProcessor()
text, lang_info = processor.process("Texto en español para analizar")
print(f"Language: {lang_info.name}, Translated: {text[:100]}...")Project Structure
latent-gate/
├── latent_gate/
│ ├── __init__.py # Package exports and version
│ ├── config.py # PipelineConfig dataclass
│ ├── config_loader.py # YAML/TOML/JSON config loading
│ ├── payload.py # SemanticPayload (compact representation)
│ ├── text_processor.py # TextPayload + TextProcessor (local compression)
│ ├── local_processor.py # X-Encoder + Predictor (Ollama vision pipeline)
│ ├── remote_decoder.py # Y-Decoder (OpenAI, Anthropic, Google, Ollama)
│ ├── selective_decoder.py # Cosine/Jaccard similarity for skip decisions
│ ├── fast_client.py # Connection pooling + model preloading
│ ├── cache.py # Content-hash disk cache
│ ├── pipeline.py # LatentGatePipeline (main orchestrator)
│ ├── async_pipeline.py # AsyncLatentGatePipeline
│ ├── video_processor.py # Video frame extraction + batch processing
│ ├── cost_tracker.py # SQLite-based cost analytics
│ ├── mcp_server.py # MCP server (Model Context Protocol)
│ ├── api_server.py # FastAPI REST server
│ ├── cli.py # Command-line interface
│ ├── logging_config.py # Structured logging with rotation
│ ├── plugin_system.py # Custom processor plugins
│ └── multilang.py # Multi-language detection and translation
├── integrations/
│ ├── agent_skills/ # Prompt compression skill + scripts
│ ├── vscode-extension/ # VS Code extension source
│ ├── cursor/ # Cursor rules and MCP config
│ ├── continue_dev/ # Continue.dev config
│ ├── langchain/ # LangChain integration wrapper
│ ├── llamaindex/ # LlamaIndex retriever integration
│ └── openai_functions/ # OpenAI/Anthropic function schemas
├── tests/ # 240+ tests (unit + integration)
├── website/ # React-based analytics dashboard & landing page
├── deployments/ # Kubernetes Helm configs
├── .github/workflows/ # CI + publish workflows
├── Dockerfile
├── docker-compose.yml
├── pyproject.toml
└── requirements.txtCommunity
GitHub Discussions — Feature requests, Q&A, showcases
Contributing
Contributions welcome! See CONTRIBUTING.md.
Development Setup
git clone https://github.com/KathanModh259/latent-gate.git
cd latent-gate
python -m venv .venv
source .venv/bin/activate # Linux/macOS
.venv\Scripts\Activate.ps1 # Windows
pip install -e ".[dev]"Run Tests
pytest tests/ -vPriority Areas
Additional vision model support (Florence-2, InternVL, Qwen-VL)
Custom similarity plugins for domain-specific use cases
WebSocket support for real-time streaming
Advanced cost analytics and optimization suggestions
Plugin development for specialized industries
Test coverage improvements
Documentation and examples
Citation
@software{latentgate2026,
author = {Kathan Modh},
title = {LatentGate: Local-First Semantic Compression Pipeline},
year = {2026},
url = {https://github.com/KathanModh259/latent-gate},
version = {1.3.0}
}Inspired by VL-JEPA (Meta FAIR, 2025).
License
Custom Proprietary License — see LICENSE.
Built by Kathan Modh
Process locally. Send smart. Pay less.
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