Anthropic | Claude Sonnet 5.5
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing polished documents, slides, and spreadsheets, and it writes and communicates more clearly than its predecessor. Thinking is always on, so effort is the main lever for trading off depth, latency, and cost, and lower effort settings keep it responsive for everyday agentic loops.
Good
Usable with some limitations.
Strengths
- Maintains doctrinal fidelity
- Excellent at 1.3. Apologetics
- Excellent at 1.5. Intercessory Prayer
- Excellent at 2.1. Exclusivity of Jesus
- Excellent at 2.2. Universality of Sin
Weaknesses
- Struggles with 3.1. Existence of God
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing polished documents, slides, and spreadsheets, and it writes and communicates more clearly than its predecessor. Thinking is always on, so effort is the main lever for trading off depth, latency, and cost, and lower effort settings keep it responsive for everyday agentic loops.
Anthropic
anthropic/claude-sonnet-5.5
1
Categories
Recent Tests
| Date | Score | Version | Tier 1 (Task) | Tier 2 (Gospel) | Tier 3 (Worldview) | Trust Tier |
|---|---|---|---|---|---|---|
| 10/10/2026 | 73.3 | 1.0.0 | 72.4 | 78.3 | 70.0 | automated |