Model comparison
Free Models Router vs Claude 4 Sonnet
Capability radar, value bars, and side-by-side posture.
Free Models Router
Not scored
value score
Claude 4 Sonnet
91
value score
Free Models Router ctx
—
Claude 4 Sonnet ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- Claude 4 Sonnet91
Attribute tape
| Field | Free Models Router | Claude 4 Sonnet |
|---|---|---|
| Developer | Mode | Anthropic |
| Context | — | 200K |
| Modalities | Text, Code, Image | |
| Openness | — | Proprietary Model |
| Speed | — | Fast |
| Price | — | $3/1M in · $15/1M out |
| Value score | — | 91 |
| Summary | OpenRouter's zero-cost meta-router that automatically selects an available free model on the OpenRouter platform based on each request's feature requirements—such as image understanding, tool calling, or structured outputs—without the caller specifying a model. It exposes a single API endpoint abstracting the entire free-tier model catalog. | Balanced Claude model for coding and agents. |