PolicyEngine

Claude Sonnet 5

Anthropic · elicited July 2026 frontier · average interval-width rank #9.2 of 29 across the canonical panel · $2.68 total elicitation cost.

claude-sonnet-5

Canonical panel profile

One row per canonical quantity, each on its own scale: this model's pooled center and 90 percent interval, with the 29-model panel median as a gray tick.

Generation harness

From the paper's per-model disclosure (Appendix A16). The prompt and repeated-run design are identical across models; the output mechanism follows each provider's API surface.

Provider path
native Anthropic API
Output mechanism
strict JSON schema
Completion budget
32000
Sampling
none accepted (provider default)
Reasoning
adaptive (provider default)
API identifier
claude-sonnet-5 (alias)

195 successful runs · elicited April and July 2026 · v4 prompts · 15 runs per model-quantity cell. Code · Raw responses · Paper (PDF)

Code and dataElicited April and July 2026 · 29 models · v4 prompts