Model comparison
Body Builder (beta) vs Claude 4 Opus
Capability radar, value bars, and side-by-side posture.
Body Builder (beta)
Not scored
value score
Claude 4 Opus
95
value score
Body Builder (beta) ctx
—
Claude 4 Opus ctx
200K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- Claude 4 Opus95
Attribute tape
| Field | Body Builder (beta) | Claude 4 Opus |
|---|---|---|
| Developer | OpenRouter | Anthropic |
| Context | — | 200K |
| Modalities | Text, Code, Image | |
| Openness | — | Proprietary Model |
| Speed | — | — |
| Price | — | $15/1M in · $75/1M out |
| Value score | — | 95 |
| Summary | Body Builder (beta) is an OpenRouter utility model that converts plain-language instructions into structured, ready-to-execute OpenRouter API request bodies. It is designed for developers building multi-model workflows who need valid JSON payloads generated from natural language rather than a general-purpose chat assistant. | Anthropic frontier Opus-class model. |