tools-only NadirClaw vs OpenRouter
Both NadirClaw and OpenRouter give you access to multiple LLM providers through a single API. But they solve different problems and work in fundamentally different ways.
TL;DR
| NadirClaw | OpenRouter | |
|---|---|---|
| What it does | Routes prompts to the right model automatically | Gives you access to many models via one API |
| Runs where | Locally on your machine | Cloud service |
| Routing | Automatic — classifies every prompt in ~10ms | Manual — you pick the model per request |
| Cost | Free (open source) + you pay providers directly | Markup on provider pricing |
| Privacy | Prompts never leave your machine (except to your chosen provider) | Prompts pass through OpenRouter's servers |
| Latency | Direct to provider (no middleman) | Extra hop through OpenRouter |
| Subscription support | Use your existing ChatGPT/Claude/Gemini subscription via OAuth | API keys only |
| Local models | Native Ollama support | No local model support |
The Core Difference
OpenRouter is a unified API gateway. You send a request, you choose the model, OpenRouter forwards it. It's a proxy that simplifies multi-provider access.
NadirClaw is an intelligent router. You send a request, NadirClaw decides which model should handle it based on the prompt complexity. Simple questions go to cheap/free models, complex tasks go to premium models — automatically.
OpenRouter: You pick the model ──> OpenRouter ──> Provider
NadirClaw: You send the prompt ──> NadirClaw classifies it ──> Right model
Why This Matters
Without routing, you're either overpaying or underserving:
Most prompts (55%+) are simple — "what does this error mean?", "rename this variable", "summarize this". Sending these to GPT-4.1 or Claude Opus costs 10-50x more than Gemini Flash or a local Ollama model, with no quality difference.
Without routing, your premium quota burns out fast:
NadirClaw makes sure premium models are reserved for prompts that actually need them.
Feature Comparison
Routing Intelligence
| Feature | NadirClaw | OpenRouter |
|---|---|---|
| Auto model selection | Sentence-embedding classifier (~10ms) | No (you pick the model) |
| Agentic task detection | Detects tool use, agent loops, system prompts | No |
| Reasoning detection | Routes chain-of-thought to reasoning models | No |
| Session persistence | Pins model for multi-turn conversations | No |
| Context window filtering | Auto-swaps when conversation exceeds context | No |
| Rate limit fallback | Auto-retries then falls back to other tier | Returns error |
Cost
| NadirClaw | OpenRouter | |
|---|---|---|
| Software cost | Free (MIT license) | Free tier + paid plans |
| Model pricing | Direct provider pricing (no markup) | Provider price + markup |
| Subscription support | Use ChatGPT/Claude/Gemini subscriptions via OAuth | API keys only |
| Local models | Ollama (free, unlimited) | Not supported |
| Savings mechanism | Routes 55%+ of prompts to free/cheap models | None (you pay for what you pick) |
Privacy and Control
| NadirClaw | OpenRouter | |
|---|---|---|
| Where it runs | Your machine | OpenRouter's cloud |
| Data routing | Direct to provider | Through OpenRouter servers |
| Open source | Yes (MIT) | No |
| Customizable | Full control over routing logic | Limited to API options |
| Self-hosted | Always | No |
Provider Support
| NadirClaw | OpenRouter | |
|---|---|---|
| OpenAI | Yes | Yes |
| Anthropic | Yes | Yes |
| Google Gemini | Yes (native SDK, not proxied) | Yes |
| DeepSeek | Yes | Yes |
| Ollama (local) | Yes | No |
| Other providers | Via LiteLLM (100+ providers) | 200+ models |
| OAuth login | OpenAI, Anthropic, Google | No |
When to Use What
Use NadirClaw if you:
- Want to save money automatically without thinking about which model to use
- Use coding agents (Codex, Claude Code, Cursor) that make many LLM calls per session
- Have a ChatGPT/Claude/Gemini subscription and want to use it programmatically
- Want to run models locally with Ollama alongside cloud models
- Care about privacy — your prompts go directly to the provider, not through a third party
- Want full control — it's open source, runs locally, and you can customize everything
Use OpenRouter if you:
- Need access to many models and want to pick them manually
- Don't want to run anything locally
- Need a hosted solution with no setup
- Want to compare outputs across many models side by side
Quick Comparison: A Coding Session
A typical 2-hour coding session with an AI agent generates ~150 LLM calls:
| Without Routing | With NadirClaw | |
|---|---|---|
| Simple prompts (55%) | 83 x Claude Sonnet = ~$3.70 | 83 x Gemini Flash = ~$0.04 |
| Complex prompts (30%) | 45 x Claude Sonnet = ~$2.00 | 45 x Claude Sonnet = ~$2.00 |
| Reasoning (15%) | 22 x Claude Sonnet = ~$1.00 | 22 x o3 = ~$0.90 |
| Total | ~$6.70 | ~$2.94 |
| Savings | — | ~56% |
With a subscription (OAuth), the savings are even larger since simple prompts go to Gemini's free tier.
Getting Started
pip install nadirclaw
nadirclaw setup
nadirclaw serve
That's it. Point your AI tool at http://localhost:8856/v1 and NadirClaw handles the rest.