arize-phoenix
19.5.0 (2026-07-23) Features add evaluation metrics aggregation APIs (ad41a4d) agents: online trace evals with tool_count_per_turn and user_friction (bdff4b5) api: expose dataset example source span (e0cf022) evals: add toxicity gallery template with input/output-agnostic benchmark (1082155) playground: add Gemini 3.6 Flash and 3.5 Flash-lite support...