Smart Router
The Smart Router automatically selects the optimal AI model for each task based on complexity, budget, and plan tier. It keeps costs low for simple bugs and uses powerful models only when needed.
Model Registry
All models available through Eiryx, organized by tier:
Economy Tier
| Model | Provider | Input Cost | Output Cost | Context | Best For |
|---|---|---|---|---|---|
| Gemini 3 Flash Preview | $0.30/1M | $2.50/1M | 1M tokens | Triage, simple fixes | |
| Claude Haiku 4.5 | Anthropic | $1.00/1M | $5.00/1M | 200K tokens | Config fixes, typos |
Standard Tier
| Model | Provider | Input Cost | Output Cost | Context | Best For |
|---|---|---|---|---|---|
| Claude Sonnet 4.6 | Anthropic | $3.00/1M | $15.00/1M | 1M tokens | Most bugs and features |
| Gemini 3.1 Pro Preview | $1.25/1M | $10.00/1M | 1M tokens | Cost-effective alternative | |
| GPT-4o | OpenAI | $2.50/1M | $10.00/1M | 128K tokens | Broad capability |
Premium Tier
| Model | Provider | Input Cost | Output Cost | Context | Best For |
|---|---|---|---|---|---|
| Claude Opus 4.6 | Anthropic | $5.00/1M | $25.00/1M | 1M tokens | Complex architecture |
| o3 | OpenAI | $10.00/1M | $40.00/1M | 200K tokens | Reasoning-heavy tasks |
How Routing Works
- Task difficulty analysis — Keywords in the description are matched against complexity signals (e.g., “race condition” → hard, “typo” → easy).
- Starting tier — Easy tasks start at Economy, moderate at Standard, architecture tasks at Premium.
- Escalation — If the model fails after multiple strategy changes, the router escalates to the next tier.
- Cost cap — Each plan has a
max_cost_per_fix. The router never exceeds this.
Provider Resolution
Your API key determines which models are available:
- OpenRouter key → All models available (OpenRouter routes to any provider)
- Anthropic key → Only Claude models
- Google key → Only Gemini models
- Multiple keys → Union of all available models
This is why OpenRouter is the recommended provider — one key gives you access to every model in the registry.
Overriding the Router
In the Create Task dialog, you can:
- Click Analyze Difficulty to see the router’s recommendation
- Manually select a different model from the dropdown
- Adjust the iteration budget
Manual overrides skip the router’s automatic selection.