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Ollama Herd vs Ollama Proxy/Routing Tools

Seven-plus small tools have emerged to solve specific Ollama routing problems — none solve the whole problem. Herd is the only integrated solution with 7-signal scoring, multimodal routing, mDNS auto-discovery, capacity learning, and a real dashboard.

What are Ollama Proxy and Routing Tools?

A growing ecosystem of open-source tools addresses pieces of the Ollama multi-instance problem. ollama_proxy_server provides API key auth and model-aware routing. ollama_load_balancer offers Rust-based round-robin dispatch. llama-swap manages model loading on a single machine. SOLLOL attempts scored routing with a dashboard. Each solves one slice of fleet coordination, but none provide the full routing intelligence, multimodal support, and observability that a production fleet demands.

What is Ollama Herd?

Ollama Herd is an open-source smart multimodal AI router that turns multiple Ollama instances across Apple Silicon devices into one intelligent endpoint. It routes LLMs, embeddings, image generation, speech-to-text, and vision with a 7-signal scoring engine, mDNS auto-discovery, and an 8-tab real-time dashboard. Two commands to set up, zero config files. pip install ollama-herd or brew install ollama-herd.

The Players

ollama_proxy_server (~200 stars) — Python proxy that sits in front of multiple Ollama instances. Provides API key authentication and model-aware routing. Routes requests to whichever backend has the requested model loaded. Simple, functional, limited.

ollama_load_balancer (~50 stars) — Rust-based parallel request dispatcher. Round-robins requests across Ollama instances. Fast, minimal, no intelligence. Think nginx for Ollama.

llama-swap (~2.7K stars) — Model loading/unloading orchestrator for a single Ollama instance. Automatically swaps models in and out of GPU memory based on incoming requests. Solves the "I have 10 models but only enough VRAM for 2" problem on one machine.

SOLLOL (~4 stars) — The most ambitious of the small tools. Context-aware scoring, priority queues, auto-discovery, and a dashboard. Closest to Herd's vision but far less mature, with minimal community validation.

OLOL (~23 stars) — Ollama inference cluster tool. Groups Ollama instances and distributes requests. Basic clustering without scoring intelligence.

Hive (~17 stars) — Task queue for Ollama. Queues inference requests and dispatches them to available backends. More of a job scheduler than a router.

OllamaFlow (~17 stars) — Routing layer that labels backends and directs requests based on labels (e.g., "fast-gpu" vs "big-memory"). Manual configuration, static routing rules.

Feature Comparison

Featureollama_proxy_serverollama_load_balancerSOLLOLllama-swapOllama Herd
Multi-instance routingYesYesYesNo (single node)Yes
Load balancingModel-awareRound-robinScoredN/A7-signal scoring
Auto-discovery (mDNS)NoNoYesNoYes
API key authYesNoNoNoNo
Priority queuesNoNoYesNoYes
Real-time dashboardNoNoBasicNo8-tab dashboard
Capacity learningNoNoNoNoYes
Thermal awarenessNoNoNoNoYes
GPU memory trackingNoNoPartialYes (single)Yes (fleet-wide)
Dynamic context optimizationNoNoNoNoYes
Smart benchmarkNoNoNoNoYes
Model swappingNoNoNoYesNo (routes instead)
Multimodal supportLLM onlyLLM onlyLLM onlyLLM onlyLLM, embed, img, STT
OpenAI API compatYesYesPartialNoYes
Ollama API compatYesPartialPartialYesYes
LanguagePythonRustPythonGoPython
Test coverageMinimalMinimalMinimalModerate480+ tests
Health checksBasicNoneBasicNone16 checks
Active maintenanceSporadicLowLowActiveActive

What Each Does Well

Where They All Fall Short

The "DIY Alternative"

In theory, you could wire together ollama_proxy_server for auth + model-aware routing, ollama_load_balancer for throughput distribution, and llama-swap on each node for model memory management. This gives you auth, distribution, and model swapping. But you still lack:

And you're maintaining three tools from three different authors with three different update cycles and no guarantee they play well together. Herd is the integrated answer. One install, zero config, all the intelligence.

When to Choose a Proxy Tool Instead

When to Choose Ollama Herd

Bottom Line

The existence of 7+ Ollama routing tools validates that the problem is real. People with multiple Ollama instances need a way to coordinate them. But the fragmented, single-feature nature of these tools shows that nobody has built the complete solution — except Herd.

None of these tools are competitive threats individually. They're validation signals. The fragmented landscape confirms the need; Herd is the complete answer.

Getting Started

pip install ollama-herd    # or: brew install ollama-herd
herd                       # start the router
herd-node                  # on each device

Frequently Asked Questions

Can I use llama-swap alongside Ollama Herd?

Yes. They solve different problems. llama-swap manages model loading and unloading on a single machine with limited VRAM. Herd routes requests across multiple machines. You can run llama-swap on individual nodes for model memory management while Herd handles fleet-level routing.

Does Ollama Herd support API key authentication?

Not yet. This is a genuine gap compared to ollama_proxy_server. If API key gating is your primary requirement for shared access, ollama_proxy_server handles that today. Herd is designed for trusted local networks.

Why not wire together multiple proxy tools?

You could combine ollama_proxy_server for auth, ollama_load_balancer for dispatch, and llama-swap for model management. But you still lack intelligent scoring, auto-discovery, multimodal routing, capacity learning, and a unified dashboard. You are also maintaining three tools from three authors with no integration guarantees.

How does Herd compare to SOLLOL?

SOLLOL is conceptually the closest to Herd, attempting scored routing, priority queues, and auto-discovery. However, it has minimal community validation (~4 stars), limited test coverage, and no multimodal support. Herd has 480+ tests, 17 health checks, and routes 5 model types.

Is ollama_load_balancer faster than Herd because it is written in Rust?

The proxy layer overhead is minimal in both. ollama_load_balancer adds the least possible latency for pure round-robin dispatch, but the routing decision itself (1–2ms) is negligible compared to actual inference time (seconds). Herd's scoring intelligence more than compensates by sending requests to the node that will complete fastest.

See Also

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