# Claude Opus 5.5: robot foundation model

A large language model in [Anthropic](/companies/anthropic.md)'s Claude Opus line. In [Mecka](/companies/mecka.md)'s WetLabs Benchmark (Sep 2026), which had frontier models drive two-arm robot rigs through nine lab tasks with no demonstrations or fine-tuning, it completed 23.3% of attempts.

- **Slug:** claude-opus-5-5
- **Type:** Foundation model
- **Maturity (DEPLOY ladder):** unknown
- **Open source:** no

## Developed by (1)

- [Anthropic](/companies/anthropic.md)


## Sources (2)

1. **Claude overview (Opus and Fable model lines)** · https://claude.com/product/overview
2. **WetLabs Benchmark** · https://www.mecka.ai/blog/wetlab · 2026-09-24


## Common questions

### What is Claude Opus 5.5?

A large language model in [Anthropic](/companies/anthropic.md)'s Claude Opus line. In [Mecka](/companies/mecka.md)'s WetLabs Benchmark (Sep 2026), which had frontier models drive two-arm robot rigs through nine lab tasks with no demonstrations or fine-tuning, it completed 23.3% of attempts.

### Who developed Claude Opus 5.5?

Claude Opus 5.5 is credited to [Anthropic](/companies/anthropic.md) on the DEPLOY registry. Each developer attribution is verified via primary sources.

### Is Claude Opus 5.5 open source?

No. Claude Opus 5.5 is recorded as proprietary on the DEPLOY registry. Model weights and source are not publicly available.

### What type of AI is Claude Opus 5.5?

Claude Opus 5.5 is a foundation model on the DEPLOY registry.

### Which robots run on Claude Opus 5.5?

No robot models on the DEPLOY registry are recorded as running Claude Opus 5.5. DEPLOY wires brain-to-model connections only when the wiring is verifiable from primary sources; absence may reflect pre-deployment or unverified manufacturer claims.


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