Self-preference Bias: Results as Published

Self-preference bias: the difference in scores Claude gives the same transcript when the grader is told the author is Claude, on a 0-9 scale, without and with a Claude-identity system prompt. Positive values favour the model itself.

Not checked against a maintainer's page.

Every number here is read from the same catalog file as the benchmark table, data version 2026103001, and is the number the table shows for that model and test. Where one page printed a model under several setups, each value is listed. The catalog is public in armanobosyan/sugra-llm-benchmarks; a wrong number can be reported from the table, with Report an error under the value, or as an issue in that repository.